Api 619.rotary Compressor 62663m

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Rotary Type Positive Displacement Compressors for Petroleum, Chemical, and Gas Industry Services API STANDARD 61 9 THIRD EDITION, JUNE 1997

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Rotary Type Positive Displacement Compressors for Petroleum, Chemical, and Gas Industry Services

Manufacturing, Distribution and Marketing Department

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API STANDARD 61 9 THIRD EDITION, JUNE 1997

American Petroleum Institute



S T D - A P I I P E T R O STD bLS-ENGL L977 II 0732Z70 05b73Lb 403

All rights reserved No part of this work may be reproduced stored in a retrieval system, or transmitted by any m e a n s , electronic, mechanical,photocopying, recording, or otherwise, without prior written permissionfrom the publishel: the Publisher; API Publishing Setvices, 1220 L Street, N. W ,Washington, D.C. 20005. Copyright O 1997 American Petroleum Institute



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API publications necessarily address problems of a general nature. W~threspect to particbe reviewed. ular circumstances, local, state, and federal laws and regulations should API is not undertaking to meet the duties of employers, manufacturers,or suppliers to warn and properly train and equip their employees, andothers exposed, concerning health and safety risks and precautions, nor undertaking their obligations under local, state, or federal laws. Information concerning safety and health risks and proper precautions with to respect parbe obtained from the employer, the manufacturer or ticular materials and conditions should supplier of thatmaterial, or the materialsafety data sheet. Nothing contained in any API publication is to be construed as granting any right, by implication or otherwise, for the manufacture, sale,or use of any method, apparatus,or product covered by letters patent. Neither should anything containedin the publication be confor infringement of letters patent. strued as insuring anyone against liability Generally, MI standards are reviewed and revised,reaflkmed, or withdrawn at least every five years. Sometimes a one-time extensionof up to two years willbe added to this review cycle. This publication will no longer be in effect five years afterits publication date as an operative API standard or, where an extension has been granted, upon republication. Status of the publication can be ascertained from the API Authoring Department [telephone(202) 682-8000]. A catalog of API publications and materialsis published annually and updated quarterly by M I , 1220 L Street, N.W., Washington, D.C. 20005. This document was produced underM I standardization procedures that ensure appropriate notification and participation in the developmental process andis designated as an M I standard. Questions concerning the interpretation of the content of this standard or comments and questions concerning the procedures under which this standard was developed should be directed in writing to thedirector of the Authoring Department (shown on the title page of this document), American Petroleum Institute, 1220 L Street, N.W., Washington, D.C. 20005. Requests for permission to reproduce or translate all or any part of the material published herein shouldalso be addressed to the director. API standardsare published to facilitate the broad availability of proven, sound engineering and operating practices. These standards are not intended to obviate the need for applystandards should be ing sound engineering judgment regarding whenandwherethese utilized. The formulation and publication of API standards is not intended in any way to inhibit anyone from using any other practices. Any manufacturer marking equipment or materials in conformance with the marking requirements of an API standard is solely responsible for complying with all the applicable requirements of that standard.M I does not represent, warrant, or guarantee that such prodstandard. ucts do in fact conformto the applicable API

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This standard is based on the accumulated knowledge and experienceof manufacturers and s of rotarytype positive displacement compressors. The objective of this standard is to provide a purchase specification to facilitate the manufacture and procurementof rotary type positive displacement compressors for use in petroleum, chemical, and gas industry services. The primary purpose of this standard is to establish minimum mechanical requirements. This limitationin scope is oneof charter as opposed to interest and concern. Energy conservation is of concern and has become increasingly important in all aspects of equipment design, application, and operation. Thus, innovative energy-conserving approaches should be aggressively pursued by the manufacturer and the during these steps. Alternative approaches that may result in improved energy utilization shouldbe thoroughly investigated and brought forth.This is especially trueof new equipment proposals, sincethe evaluation of as opposed to acquisition cost purchase options will be based increasingly on total life costs alone. Equipment manufacturers, in particular, are encouraged to suggest alternatives to those specified when such approaches achieve improved energy effectiveness and reduced total life costs without sacrificeof safety or reliability. This standard requires the purchaserto specify certain details and features. Although it is recognized that the purchaser may desire to modify, delete, or amplify sections of this standard, it is strongly recommended that such modifications, deletions, and amplificationsbe made by supplementing this standard, rather than by rewriting or incorporating sections thereof into another complete standard. API standards are published as an aid to procurement of standardized equipment and materials. These standardsare not intended to inhibit purchasers or producers from purchasing or producing products made to other standards. do so. Every effort hasbeen made by API publications maybe used by anyone desiring to data contained in them; however, the the Instituteto assure the accuracy and reliability of the Institute makes no representation, warranty,or guarantee in connection withthis publication and hereby expressly disclaims any liability or responsibility for loss or damage resulting from its use or for the violation of any federal, state, or municipal regulation with which this publication may conflict. be submitted to the director ofthe ManufacturSuggested revisions are invited and should ing, Distribution and Marketing Department, American Petroleum Institute,1220 L Street, N.W., Washington, D.C. 20005.

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iii COPYRIGHT 2003; American Petroleum Institute


STD.API/PETRO STD bL9-ENGL L997 I0732290 05b73LB 28b M

CONTENTS .

1

REFERENCES ........................................................ 2.1 Standards ........................................................ 2.2UnitConversion ...................................................

1 1

2

3

DEFINITIONS. ........................................................ This Standard ........................................ 3.1UsedIn

2 2

4

BASICDESIGN ....................................................... 3 4.1General .......................................................... 3 ................................................... 5 4.2PressureCasing 4.3 CasingConnections ................................................ 6 4.4 External Forces and Moments ........................................ 6 4.5RotatingElements ................................................. 6 4.6 Shaft Seals ....................................................... 7 ....................................................... 10 4.7Dynamics 4.8Bearings ........................................................ 14 4.9 BearingHousings ................................................ 16 16 4.10 Lube-Oil and Seal-Oil Systems ...................................... 18 4.11Materials ....................................................... 4.12 Nameplates and Rotation Arrows .................................... 21 21 4.13Quality .........................................................

5

ACCESSORIES....................................................... 21 5.1 Drivers ......................................................... 21 ............................................. 22 5.2CouplingsandGuards 5.3 Mountingplates.................................................. 22 5.4 Controls andInstrumentation ....................................... 27 5.5 Piping. ......................................................... 29 5.6IntercoolersandAftercoolers ....................................... 31 31 5.7Intake Air Filters ................................................. 5.8 Pulsation SuppressordSilencers for Dry Screw Compressors .............. 32 5.9 SpecialTools .................................................... 33

6

INSPECTION. IIESTING. AND PREPARATION FOR SHIPMENT ............ 33 ......................................................... 33 6.1General ....................................................... 33 6.2Inspection 6.3 Testing ......................................................... 34 for Shipment .......................................... 37 6.4Preparation

7

VENDOR’SDATA .................................................... 7.1General ......................................................... 7.2 Proposals ....................................................... .................................................... 7.3ContractData

2

\

1 1

38 38 39 40

V



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SCOPE ............................................................... 1.1 AlternativeDesigns................................................ 1.2ConflictingRequirements ...........................................

1

S T D * A P I / P E T R O STD bL7-ENGL 1997 m 0732290 05b73117 112 m

k s APPENDIXA APPENDIX B APPENDIX C APPENDIX D

APPENDIXE APPENIMF APPENDIX G APPENDIXH APPENDIX I

TYPICAL DATA SHEETS (NORMATIVE) ..................... 43 MATERIALS AND THEIR SPECIFICATIONS FOR ROTARY COMPRESSORS (INFORMATIVE) .................. 63 TYPICAL VENDOR DRAWINGAND DATA REQUIREMENTS (INFORMATIVE).......................... 67 TYPICAL SCHEMATICS FOR GENERAL PURPOSE OIL SYSTEM (DRY SCREW COMPRESSOR)AND FOR BASIC OIL SYSTEM (FLOODEDSCREW 77 COMPRESSOR) (INFORMATNE) ........................... INTERNATIONAL STANDARDS (INFORMATIVE) ............ 89 PROCEDURE FOR DETERMINATIONOF RESIDUAL UNBALANCE (INFORMATIVE) ............................ 101 FORCES AND MOMENTS (NORMATIVE) ................... 109 NOMENCLAFOR EQUIPMENT (INFORMATIVE) ....... 111 INSPECTORS CHECKLIST (INFORMATNE)................ 115

Figures 1

HelicalCompressorRotors .......................................... 1 LabyrinthShaftSeal ............................................... 8 Seal (purged) .................................. 8 3Restrictive-Ring-Type 4 OilBufferedMechanical()SealAssembly ....................... 9 5 GasBuffered or Dry -Type Seal Assembly ...................... 11 6 LiquidFilm Seal. ................................................ 11 7Self-Acting Gas Seal .............................................. 12 8 RotorResponsePlot .............................................. 15 9A Typical Mounting Plate Arrangement ................................. 23 9B Qpical Mounting Plate Arrangement ................................. 24 9C Typical Mounting Plate Arrangement ................................. 25 9D Typical Mounting Plate Arrangement ................................. 26 D-1 General Purpose Oil System for Dry Screw Compressor ................. 79 D-2 Basic Oil System for Flooded Screw Compressor....................... 79 D-3OilReservoir .................................................... 80 81 D-4OilSeparator .................................................... D-5 primary (Centrifugal or Rotary) h p Arrangement..................... 82 D-6 Twin Oil Coolers and Filters W i t h Separate Continuous-Flow 83 Transfer Valves .................................................. D-7 Seal-Oil Circulation System for EquipmentW i t h Double Mechanical Seals.. 84 D-8 Lube-Oil Module at Equipment-Dry Screw Compressors ............... 85 D-9A Instrument Piping Details: Pressure Gauges, Switches, and Transmitters .... 86 D-9B Instrument Piping Details: Combined Instrument System for LowPressure Alarms and PumpStart Switches Crypical Design).............. 86 D-9C Instrument PipingDetails: Combined Instrument Systemfor LowPressure Alarms and PumpStart Switches (Alternative Design)........... 86 D-9D Instrument Piping Details: Low-Pressure Trip Switch (Altemative Design) .. 87 D-9E Instrument Piping Details: Single Pressure Gaugefor Differential87 Pressure Use .................................................... D-9F Instrument Piping Details: Diaphragm Actuator........................ 87 D-9G Instrument Piping Details: - and Board-Mounted Gauges and i t h Instrument Valves.................................... 88 Switches W

2

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D-9H Instrument Piping Details: Externally Connected Level Instruments........ 88 D-91 Instrument Piping Details: Differential Diaphragm Actuators. Indicators. Switches. and Transmitters......................................... 88 F-1SensitivityCheckWork Sheet...................................... 102 F-2SensitivityCheckWorkSheet ...................................... 103 104 F-3ResidualUnbalanceWork Sheet.................................... F-3ResidualUnbalanceWork Sheet (Continued) ......................... 105 ......................... 106 F-4SampleCalculationsforResidualUnbalance F-4 Sample Calculations for Residual Unbalance (Continued) ............... 107 G-1 Combined Resultants of the Forces and Moments of Corrections ......... 110 H-1 Dry ScrewCompressor ........................................... 113 H-2 Flooded ScrewCompressor ....................................... 114 Tables 1 2 3

14 Vibration Limits for Screw Compressors.............................. Antifriction Bearing LimitingdmN Factors ............................ 14 29 Conditions RequiringAlarms and Shutdowns .......................... Minimum Requirementsfor Piping Materials .......................... 4 30 34 Maximum Severityof Defects in Castings............................. 5 B- 1 Materials and Their Specifications for Rotary Compressors ............... 65 91 E- 1 International Standards and Referenced Publications.................... 93 E-2 Intemational Materials Standards....................................

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STD.API/PETRO S T D bL7-ENGL L777 I0732273 05b7321 870 D

Rotary Type Positive Displacement Compressors for Petroleum, Chemical, and Gas Industry Services 1 Scope

1.2 CONFLICTINGREQUIREMENTS

This standard covers the minimum requirements for dry and flooded helical lobe rotary compressors (see Figure 1) used for vacuum or pressure or both in petroleum, chemical, and gas industry services. It is primarily intended for compressors that are in special purpose applications. It does not cover portable air compressors, liquid ring compressors, and vane-type compressors. Standard air compressorsforlight dutyarecoveredinInternationalStandard ISO' 10 440: 1995-Rotary Type Positive Displacement Oil-free Compressors for General ReJinely Services Part 2-Packaged Air Compressors.

In case of conflict between this standard and the inquiry, the inquiry shall govern. At the time of order,the order shall govern.

2 References 2.1 STANDARDS

Thisstandardmakesreference to Americanstandards; be used as otherinternationalornationalstandardsmay mutually agreed between purchaser and vendor provided it can be shown that these other standards meet or exceed the American standards referenced.See Appendix E for a list of corresponding national and intemational standards.

Note: A bullet (O)at the beginningof a paragraph indicates that either a decision is required or further information is to be provided by the purchaser. This infonnation should be indicated on the data sheets (SeeAppendix A); otherwiseit should be stated in the quotation request (Inquiry) or in the order.

Note: Listing in AppendixE does not implythat the corresponding standard is equivalent to the American standard. It is the responsibility of the purchaser and the vendor to that the specified standard meets m exceeds the requirements of the standard listed under USA.

1.1 ALTERNATIVEDESIGNS

The vendor may offer alternative designs. Equivalent met2.1.1 Theeditions of the standards, codes,andspecificaas mutually ricfasteners,andflangesmaybesubstituted tions presented in AppendixE that are in effectat the time of E agreed upon by the purchaser and the vendor. See Appendix publication of this standard shall, to the extentspecified for list of corresponding national and international standards. of this standard.Theapplicability of herein,formapart changes in standards, codes, andspecificationsthatoccur lIntemational Organization for Standardization. IS0 publications are availafter the inquiry shall be mutually agreed upon by the purable from the American National Standards Institute, 11 West42nd Street, New York, New York 10036. chaser and the vendor.

Male

Figure 1-Helical Compressor Rotors 1 COPYRIGHT 2003; American Petroleum Institute


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rotor

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S T D * A P I / P E T R O STD bLS-ENGL L797 9 0732290 05b7322 7 0 7 m API STANDARD 619

2

2.1.2 Thepurchaserandthevendorshallmutuallydetermine the measures that must be taken to comply with any governmental codes, regulations, ordinances, or rules are that applicable to the equipment. 2.1.3 It is the vendor’s responsibility to invoke all applicable specifications to each subvendor. 2.2UNIT

CONVERSION

The factors in Chapter 15 of the API Manual of Petroleum Measurement Standards were used to convert fromU.S. Customary to SI units. The resulting exact SI units were then rounded off.

3 Definitions 3.1 USED IN THIS STANDARD The used in this standard are defined in3.1.1 through 3.1.43. Note: Refer to Hgure 1 and Appendix H for additional definitions.

3.1.1 alarm point A preset value of a parameter at which an alam is actuated to warn of a condition that requires corrective action. 3.19 anchor b o b : Bolts holding a mounting plate to a structure or foundation. Note: 7heterm structure is meant to refer to offshore platforms. The term fowrdariom refers to onshore concretdput foundations.

3.1.3 axially (horizontally) split: parallel to the shaft centerline. 3.1.4 critical

Casing ts that are

speed: See 4.7.1.

3.1.5design: The use of theworddesign in any tem (such as design power, design pressure, design temperature, or design speed) should be avoided inthe purchaser’s specifications. This terminology should be used only by the equip ment designer and manufacturer.

3.1.9generalpurposeapplication: An application that is usually spared or is in noncritical service. 3.1.10 hold downbolts (mounting bolts):Bolts holding the equipment to the mounting plate.

3.1.11 hydrodynamic bearings: Bearingsthat use the principles of hydrodynamiclubrication.Theirsurfacesare oriented so that relative motion forms an oil wedge or wedges to the load without . 3.1.12 informative: An appendix of the standard which is provided forinformationand is intended to assist in the understanding or use of the standard. Compliance with an informative appendix is not mandated. 3.1.13 inlet volume flow: The flow rate expressed in volumeflowunitsat the conditions of pressure, temperature, compressibility,andgascomposition,includingmoisture content, at the compressor inlet. Actual volume flowmay be used to refer to flow at any particular location suchas interstage, rotor inlet or compressor discharge and should therefore not be used interchangeably with inlet volume. Note: To determine inlet volume flow, allowance must be made for pressure drop through silencer (pulsation suppressor) and other equipment in vendor’s scope of supply. The purchaser is advised to specify flow requirement in of standard volume flow or mass flow dry or wet.

3.1.14 local: The term, local, is used in relation to instruments or other ancillaries mounted on, or in close proximity to, the equipment or console. 3.1.15maximumallowabledifferentialpressure: The highest differential pressurethat can be permitted in the casing under the most severe operating conditions of minimum suction pressure and discharge pressure equal to the relief valve setting. 3.1.16maximumallowable speed (revolutions per minute): The highest speed ofthe power inputrotor at which the manufacturer’s design will permit continuous operation.

3.1.17maximumallowabletemperature: Themaxi3.1.6 dry screw compressor: A dry screw compressor uses no liquid for sealing the rotor clearances and driving themum continuous temperaturefor which the manufacturer has designed the equipment (or any part to whichthe tem is to rotor relationship is mainnoncoupledrotor.Therotor referred) when handling the specified fluid at the specified tained by timing gears on each rotor and the noncoupled rotor maximum operating pressure. is driven by the coupled rotor through the timing gears. No rotor to rotor occurs in dry thescrew compressor. 3.1.18maximumallowableworkingpressure: The maximum continuous pressure for which the manufacturer 3.1.7 flooded screw compressor: A rotary,helical has designed the equipment(or any part to which the term is lobe compressor which is injected with a lubricant (compatireferred) when handling the specified fluid at the specified ble with the process gas) into the rotor area after the closed maximum operating temperature. thread position of the rotor. This lubricant helps seal rotor clearances and establishes an oil film between rotors. One 3.1.19 maximum continuous speed (revolutions rotor drivesthe other in the absenceof a timing gear. per minute): The speed of the power input rotor at least 3.1.8 gauge board: An open bracket or plate used to supequal to 105 percent of the highest speed requiredby any of port and display gauges, switches, and other instruments. the specified operating conditions. --``,,,,,``,,``,`,,`````,,```,-`-`,,`,,`,`,,`---



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3

3.1.20maximumpower: Thehighestpowerthecom3.1.35 rotor body: The profile section on or integral with pressor and any shaft-driven appurtenances require for any of the shaft. the specified operating conditions. This power shall include 3.1.36 shutdown point: A preset value of a parameter the effect of any equipment (such as pulsation suppression devices, process piping, intercoolers, after-coolers, and sepa- at which automatic or manual shutdown of the system is required. rators) furnishedby the compressor vendor. 3.1.37specialpurposeapplication: An application 3.1.21maximumsealingpressure: Thehighestpresfor which the equipment is designed for uninterrupted, consure expected at the seals during any specified static or opertinuous operation in critical service and for which there is ating conditions and during startup and shutdown. usually no spare equipment. 3.1.22minimumallowablespeed(revolutions per minute): The lowest speedof the power input rotor at which 3.1.38 standard volume flow: The flow rate expressed the manufacturer’s design will permit continuous operation. in IS0 standard conditions as Normal cubic meters per hour (Nm3/hr) at an absolute pressure of 1.013 bar (14.7pounds per square inch (psi)) and a temperature of 0°C(32°F). U.S. 3.1.23minimumallowabletemperature: Thelowest Customary units are standard cubic feet per minute (scfm) or temperatureforwhichthemanufacturerhasdesignedthe million standard cubic feet per day (mmscfd) atan absolute equipment (or any part to which the term is referred). of pressure of 14.7pounds per square inch and a temperature 3.1.24normaloperating point Thepointatwhich 60°F. is usualoperationisexpectedandoptimumefficiency 3.1.39 standby service: A normally idle or idling piece desired. This point is usually the point at which the vendor of equipment thatis capable of immediate automatic or mancertifies that performance is within the tolerances stated in ual start-up and continuous operation. this standard. 3.1.25 normative: A requirement of the standard. Note: All referenced standards are normative, except the intemational standards in the cross-reference table in Appendix E.

3.1.26owner: Thefinalrecipientoftheequipmentand as the purchaserof the equipment. may delegate another agent

3.1.40 totalindicatedrunout (TIR): Also known as total indicator reading, is the deviation of a diameter or face determined by measurement with a dial indicator. 3.1.41 trip speed (revolutions per minute): The speed at which the independent emergency overspeed device operates to shut down a variable-speed prime mover.

3.1.27: An enclosureusedtomount,display,and protect gauges, switches, and other instruments.

3.1.42 unit responsibility: The responsibility for coordiall auxiliary nating the technical aspectsof the equipment and 3.1.28pocketingfrequency(hertz): Thefresystems includedin the scope of the order. It includes responquency at which the gas is discharged from the rotor lobes sibility for reviewing such factors as the power requirements, into the discharge port. Pocket ing frequency is rotor rev-speed,rotation,generalarrangement,couplings,dynamics, olutions per minute(rpm)times number of lobes on that rotor noise,lubrication,sealingsystem,materialtestreports, divided by 60. instrumentation, piping, and testing of components. 3.1.29 pressure casing: The composite of all stationary pressure-containing parts of the unit, including all nozzles and other attached parts. 3.1.30 radially split: Casing ts that are perpendicular to the shaft centerline. 3.1.31remote: A devicelocatedawayfromtheequipin a control house. ment or console, typically 3.1.32requiredcapacity: The largest inlet volume required by the specified operating conditions. 3.1.33 rotor: The complete rotor body (see3.1.30)and the shaft and shrunk-on sleeves (when furnished). 3.1.34rotorassembly: Consists ofbothrotorsand, where applicable, timing gears and thrust collars.

3.1.43 vendor: Also known as the supplier, is the agency that supplies the equipment. Note: The vendor may be the manufacturerof the equipment or the manufacturer’s agent and normally is responsible for service.

4 4.1

Basic Design GENERAL

4.1.1 The equipment (including auxiliaries) covered bythis standard shall be designed and constructed for a minimum service life of 20 years and at least 3 years of uninterrupted operation. It is recognized thatthis is a design criterion. 4.1.2 Thevendorshallassumeunitresponsibilityforall equipment and all auxiliary systems included in the scope of the order.

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o 4.1.3 Thepurchaserwillspecifytheequipment’snormalminimizecontamination by moisture,dustandotherforeign during matterpoint. operating andoperation periods of idleness. 4.1.4 Equipment shall be designed to run to the trip speed, specified maximum differential pressure and 1 10 percent of relief valve settings without damage. Note: To run without damage involves factors other than differential pressure, such as maximum discharge temperam or limiting driver p e r . In some cases the manufacturermay require special controls to avoid damage to intemal parts.

4.1.5 Unlessotherwisespecified,coolingwatersystems shall be in accordance with4.1.5.1 and 4.1.5.2. 4.1.5.1 A cooling water system or systems shall designed for the following conditions:

be

Velocity overheat exchange surfaces

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Maximum allowable working pressun (MAW) Test pressure1.5 x MAWP Maximum pressm drop Maximum inlet temperature Maximum outlet temperature Maximum tempemme rise Minimum tempemhue rise Fouling factoron water si& Shell corrosion allowance

1S-2.5 m l s

5-8 ftk

%.9 bar (Note 2) >I 0.4 bar 1 bar

>IOOpsig >I50 psig 15 psi

3OoC

90F

50T 200K 10°K 0.35 m-KkW

120 F 30 F 20 F 0.002hr-fi-F/Btu

3.0 mm

0.125 m

Note 1: The vendor shall notify the purchaser if the criteria for minimum temperatwe rise and velocity over heat exchange surfaces result in a conflict. Thc criteria for velocity over heat exchange surfaces is intended to minimize water-side fouling;the criterion for minimum temperaturerise is intended to minimize the use of cooling wafer. The purchaser will approve the final selection. Note 2 Gauge pressure.

Provision shall be madefor complete venting and draining of the system or systems. 4.1.5.2 To avoid condensation,theminimuminletwater temperaturetothebearinghousingsshouldpreferablybe above the ambientair temperature.

4.1.10 The machine and its driver shall perform on the test stand and on their permanent foundation within the specified acceptance criteria. After installation, the performance of the combined units shall be the t responsibility of the purchaser and the vendor who has unit responsibility. O

4.1.1 1 Many factors (such as pipingloads,alignmentat operatingconditions,ingstructure,handlingduring shipment, andhandlingandassemblyatthe site) may adversely affect site performance. To minimize the influence of these factors,the vendor shall review and comment on the purchaser’s piping and foundation drawings. When specified, the vendor’s representative shall a) observe a check on the piping performed by parting the flanges, b) check alignment at the operating temperature,and c) be present duringthe initial alignmentcheck. 4.1.12 Motors, electrical components, and electrical installationsshall be suitable forthe areaclassification (class, group, and &vision or zone) specified by the purchaseron the data sheets and shall meet the requirements of NFPAZ 70, Articles 500,501,502, and 504, as well as local codes specified and furnishedby the purchaser. 4.1.13 Controlofthesoundpressurelevel (SPL) ofall equipment furnished shall be a t effort of the purchaser and the vendor.The equipment furnished by the vendorshall conformtothemaximumallowablesoundpressurelevel specified by the purchaser. Note: Control ofthe sound level ofthe compressor installation (including the design ofsound enclosures, ifrequind) shall be a t effort ofthe purchaser and the vendor. These compressors tend to be very noisy. The compresor may require an acoustical enclosurt to achieve acceptablenoise levels.such factors as accessibility for operation and maintenance. purge requirements when handling flammable or toxic gas. noise levels within the enclosure, explosion-proof doors, and see-through window requiremts for machine monitoring shouldbe considered in the design and consauction of acoustical enclosures.

4.1.6 The arrangement of the equipment, including piping 4.1.14 Specifications for liquid separation equipment and auxiliaries, shall be developed tly by the purchaser gas stream shall be developed required in the discharge and the vendor. Thearrangement shall provide adequate cleartly by the purchaser and the vendor. for operation and maintenance. ance areas and safe access 4.1.7 All equipment shall be designed to permit rapid and economical maintenance. Major parts suchas casing components and bearing housings shall be designed (shoulderedor cylindrically doweled) and manufactured to ensure accurate alignment on reassembly. 4.1.8 Spare parts for the machine and all furnishedawiliaries shall meet all thecriteria of this standard.

Note: Liquid separalion is always required for flooded screw compressors, and may be required for dry screw compressors if liquid injectionis utilized.

4.1.15 The purchaser will specify whether the installation is indoors (heatedor unheated) oroutdoors (with or without a in roof), as well as the weather and environmental conditions which the equipment must operate (including maximum and minimum temperatures, unusual humidity, and dusty or corrosive conditions).

4.1.9 Oilreservoirsandhousingsthatenclosemoving lubricated parts (suchas bearings, shaft seals, highly polished parts, instruments, and control elements) shallbe designed to COPYRIGHT 2003; American Petroleum Institute


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ROTARYTYPE POSITIVE

DISPLACEMENT CoMPRESSORS FOR

PETROLEUM, CHEMICAL,

AND GASINDUSTRY SERVICES

5

4.2 PRESSURE CASING

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4.2.8 Jackscrews, guide rods, and cylindrical casing-alignment dowels shall be provided to facilitate disassembly and 4.2.1 The hoop-stressvaluesusedinthedesign of the reassembly. When jackscrewsare used as a means of parting casing shall not exceed the maximum allowable stress valing faces, one of the faces shall be relieved (counterues in tension specified in Section VIII, Division 1, of the bored or recessed)to prevent a leaking t or an improperfit ASME3Code at the maximum operating temperature of the caused by marring of the face. Guide rods shall be of suffimaterial used. cient length to prevent damage to the internalsor casing studs bythecasing duringdisassemblyandreassembly.Lifting 4.2.2 Themaximumallowableworkingpressureofthe lugs or eyebolts shall be provided for lifting only the top half casing shall be at least equal to the specified relief valve setting; if a relief valve is not Specified, the maximum allowable of the casing. Methodsof lifting the assembled machine shall be specified by the vendor. working pressure shall be at least 1.25 times the maximum specified discharge pressure (gauge). 4.2.9 Whenspecifiedforcorrosionresistance,overlay 4.2.2.1 Unlessotherwisespecified,fordryscrewcomcladding or plating shall be applied to the casing wall. This pressors system pressure protection will be furnished by the procedure may require an overboreof the casing during manpurchaser. As an example, for wet CO, ufacture prior to final machining. service (carbonic acid), a stainless overlay 2.5 to 3.2 millime4.2.2.2 For flooded screw compressors, relief valves on the ters (100 to 125 mils) thick couldbe applied to the cast steel oil separators will be furnished by the vendor and sized per casing wall. The casing would be overbored to allow for a API Recommended Practice520 (including fire case) or other multilayer weld overlay lining consisting of a barrier of criteria as specified by the purchaser. Type 309 stainless steel followedby a cover of 308/3 16. 4.2.3 Casings shall be made of steel if (a) rated discharge The casing wouldbe finish machined after the stainless overpressure is over 27.5 bar gauge(400 pounds per square inch), lay. The end wall could be lined similarly or have compatible 260°C (500"F), or (c) gas or (b) discharge temperature is over stainless steel end plates provided. The vendor shall include is flammable or toxic. details of this procedure in the casing design proposal. Note: In cases wherecastironcasings are acceptable,otherconsiderations such as repairability of the casing due to close rotodcaingclearances may be a consideraton in specifying casing. a steel

4-2-10 ~

4.2.4 Casingsdesignedformorethanonemaximumallowable process pressure level are not permitted. When a cooling B jacket is utilized,this jacket shall haveonly external connections between the upper and lower housings (if applicable) and shall have gasketed no connection ts. cifically approved

4.2.10.1 ThedetailsofthreadingshallconformtoASME l . 1.

4.2.5 Axially split casings shall use a metal-to-metal t (with a suitable t compound) that is tightly maintained by suitable bolting. Gaskets (including string type) maybe used on the axial t with purchaser approval. When gasketed ts are used between the end covers and the cylinder of radially split casings, they shall be securely maintained by confinement of the gaskets.

~

lshall t furnished i ~ ~

as specifiedin 4.2.10.1

through 4.2.10.5.

4.2.102

Studs shall be supplied unless cap screws are spe-

by the purchaser. 4.2.10.3 Adequateclearanceshall be providedatbolting locations to permit the useof socket or box wrenches. 4.2.10.4 Internalsocket-type,slotted nut, orspanner-type bolting shall not be used unless specifically approvedby the purchaser. 4.2.10.5 Stud ASTM4 grade markings shall be located on the nut endof the exposed stud end.

4.2.6 Each axially split casing shall be sufficiently rigid to allow removal and replacement of its upper half without dis- 4.2.11 The use of tapped holes in pressure parts shall be minimized. To prevent leakage in pressure sections of casturbing rotor-to-casing running clearances. ings, metal equal in thickness to at least half the nominal bolt 4.2.7 Casings and s shall be designed to have suffidiameter, in addition to the allowancefor corrosion, shall be cient stren,& and rigidity to limit any change of shaft alignleft around and below the bottom of drilled and tapped holes. ment at the coupling flange, caused by the worst combination The depth of the tapped holes shall be at least 1'I2times the of pressure, torque, and piping forces and moments, to 50 stud diameter. micrometers (0.002 inch). sand alignment bolts shall 4.2.12 The machined finish of the mounting surface shall to moved by the use be rigid enoughto permit the machine be be 3.2 to 6.3 micrometers (125 to 250 micro-inches) arithof its lateral and axial jackscrews. I

l

'American Society Of MechanicalEngineers, York,New York 10017.


345 East 47th Street, New

4ASTM International. 100 Bar Harbor Drive, West Conshohocken, Pennsylvania 19428.


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S T D - A P I / P E T R O STD b L 7 - E N G L

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L777 I0 7 3 2 2 7 0 05b732b 352

API STANDARD 619

metic average roughness (Ra). Hold-down or foundation bolt holes shallbe drilled perpendicularto the mounting surfaceor surfaces and spot faced toa diameter three times that of the hole.

4.3.7 Flangesshallconform to ASME B16.1. B16.5, or B16.42 as applicable, except as specified in 4.3.7.1 through

be flanged or 4.3.1 Inletandoutletconnectionsshall machined and studded, orientedas specified. and suitable for the working pressureof the casing as defined in 3.1.18.

4.3.7.3

4.3.7.3.

4.3.7.1 Cast iron flanges shall be flat-faced and shall 4.2.13 The equipment feet shall be provided with vertical have a minimum thickness of Class 250 for sizes 8-inches jackscrews and shall be drilled with pilot holes that are acces- and smaller. sible for use in final doweling. 4.3.7.2 Flat-facedflanges with full raised-facethickness are acceptable on casings otherthan cast iron. 4.3CASINGCONNECTIONS

4.3.3 Connectionswelded to the casing shallmeet the material requirements of the casing, including impact values, ratherthantherequirementsoftheconnectedpiping(see 4.1 1.4.6)All . welding of connections shall be done before hydrostatic testing (see6.3.2). 4.3.4 A casing drain shallbe provided, 4.3.5 Casingopeningsforpipingconnectionsshall be at least NPS 3/4 and shall be flanged or machined and studded. Whereflanged or machined andstuddedopeningsare impractical, threaded openings in sizes N P S V4 through 1V2 are permissible. These threaded openings shall be installed as specified in4.3.5.1through 4.3.5.7. 4.3.5.1 A pipe nipple, preferably not more than 150 millimeters (6 inches) long, shall be screwed into the threaded opening. 4.3.59 Pipe nipples shall be a minimum of Schedule 160 seamless for sizes NPS 1 and smaller and a minimum of Schedule 80 for sizesN P S 1V z and larger. 4.3.5.3 The pipe nipple shall be provided with a weldingneck or socket-weld flange. 4.3.5.4 The nippleandflangematerialshallmeetthe requirements of 4.3.3. 4.3.5.5 Thethreadedconnectionshall be seal-welded; however, seal welding is not permitted oncast iron equip ment, for instrument connections, or where disassembly is requiredformaintenance.Seal-welded ts shall be in accordance withASME B31.3. 4.3.5.6 Tapped openings and bosses for pipe threads shall conform to ASME B 16.5. 4.3.5.7 pipe threads shall be taper threads conforming to ASME B 1.20.1. 4.3.6 Openings for N P S IV4, 2V2,3V2,5,7, and 9 shall not be used. COPYRIGHT 2003; American Petroleum Institute

otherwisespecified,matingparts for thesenonstandard flanges shall be furnished by the vendor. 4.3.8 Machined and studded connections shall conform to the facing and drilling requirements ofASME B 16.1,B 16.5 or B16.42. Studs and nuts shall be furnished installed. The first 1VZ threads at both ends of each stud shall be removed. Connections larger than those covered by ASME shall meet the requirementsof 4.3.7.3. 4.3.9 Tapped openings not connected to pipingshallbe plugged with solid, round-head steel plugs furnished in accordance withASME B 16.1 1. As a minimum, these plugs shall meet the requirements of the casing. Plugs that may later require removal shall beof corrosion-resistant material. A lubricant that meets the proper temperature specification shall be used on allthreaded connections. Tape shall not be applied to threads of plugs inserted into oil ages. Plastic plugs are not permitted. 4.4EXTERNAL

FORCES AND MOMENTS

4.4.1 The compressorshall be designed to withstand external forces and moments on each nozzle calculated per Equations G-1 and G-2 of Appendix G . The vendor shall furnish the allowable forces and moments for each nozzle in tabular form. Note:Silenœls may require additional .

4.4.2 Casing and s shall be designed to have sufficientstrengthand rigidity to limitdistortion of coupling alignment due to pressure, torque, and allowable forces and moments to 50 micrometers (0.002 inches). Note: Care should be exercised in the selectionand location of expansionpints to prevent possible early fatigue due to either pulsadon or expansion strain or both Expansionts should not be used in flammable or toxic serviœ.

4.5ROTATINGELEMENTS 4.5.1

Rotors

4.5.1.1 Rotor stiffness shall be adequate to prevent between the rotor bodies and the casing and between geartimed rotor bodies at the most unfavorable specified condiwith the shaft shallbe permations. Rotor bodies not integral Document provided by IHS Licensee=BP Amoco/5928366101, =, 03/18/2003 01:22:58 MST Questions or comments about this message: please call the Document Policy Management Group at 1-800-451-1584.

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4.3.2 All of the purchaser’s connections shall be accessible for disassembly without the machine being moved.

Connectionsother than thosecovered by ASME

B 16.5 or B16.47 require the purchaser’s approval. Unless

nently attached to the shaft to prevent relative motion under any condition. Structural welds on rotors shall be fúll-penetration continuous welds and shall be stress relieved, with appropriate ASTM heat treatment procedure. 4.5.1.2 Shaftsshallbeforgedsteelunlessotherwiseapproved by the purchaser.

The gear enclosing chamber shall not be subject to with the gas. 4.5.2.3 Wheretiminggearshavetoberemoved for seal replacement, it shall be possible to retime the rotors without further disassembly of the casing.

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4.5.2.4 Timinggearsforhelicalandspiralcompressors shall have the same helix hand (rightor left) as the rotors so 4.5.1.3 Whenspecified orwhen vibrationand/oraxialthat axial position has minimal effect on timing. position probes are furnished, the rotor shaft sensing areas to beobservedbyradial-vibrationprobesshallbeconcentric 4.5.2.5 Inspection ports or other means, shall be provided with the bearing journals. All shaft sensing areas (both radial onthehousingcovers,suchthattiminggearsmay be vibration and axial position) shall be free from stencil and inspected without disassembly of the unit. scribe marks or another surface discontinuity, such as an oil hole or a keyway, for a minimum ofone probe-tip diameter 4.6 SHAm SEALS on each side of the probe. These shall not be metallized, 4.6.1 General sleeved, or plated. The final surface finish shall be a maximum of 1.0 micrometer(32micro-inches)Ra,preferably 4.6.1.1 Shaft seals shall be provided to restrict or prevent obtained by honing or burnishing. process gas leakage to the atmosphere and, fordry screws, These areas shall be properly demagnetized to the levels seal fluid leakage into the process gas stream over the range specified inAPI Standard 670 or otherwise treatedso that the of specified operating conditions, including startup and shutcombinedtotalelectricalandmechanicalrunoutdoesnot down. Seal operation shall be suitable for specified variations exceed25percent of themaximumallowedpeak-to-peak in suction conditions that may prevail during startup, shutvibrationamplitude or thefollowingvalue,whicheveris down, or settling out,and during any other special operation greater: specified by the purchaser. The maximum sealing pressure shall be at least equal to the settling out pressure. The shaft by radial-vibrationprobes, a. For areastobeobserved seals and seal system shall be designed to permit safe com5 micrometers (0.25 mil). pressor pressurization with the seal system in operation prior b. For areas to be observed by axial-positionprobes, to process startup. 10 micrometers (0.5 mil). 4.6.1.2 For low-temperatureservicessystemsshallhave 4.5.1.4 Eachrotor set shall be clearly markedwitha provision for maintaining the seal oil above its pour-point unique identification number on each male and female rotor. temperature at the inner-seal drain. This number shallbe on the endof the shaft opposite the couseals preferably shall be accessible for pling or in an accessible area that is not prone to maintenance 4.6.1.3 Shaft inspection and replacement without removing the top half of damage. the casing of a horizontally split compressor or the end hous4.5.1.5 Shaft ends shall conformto API Standard 671. ings of a vertically split unit. 4.5.1.6 Keyways shall have fillet radii conforming to a 4.6.1.4 Shaft seals may be one o f - o r a combination ofASME B17.1. the types described in 4.6.2 through 4.6.6,as specified by the purchaser. Materialsof component parts shallbe suitable for 4.5.2 Timing Gears (Dry Screw Compressors) the service. 4.6.1.5 Flooded screw type compressors shall have 4.5.2.1 Timinggearsshallbemadeofforgedsteeland as described in4.6.4.2. mechanical type seals shall be aminimumof AGMAS Quality 12. 'liming gears shall beof the helical type for helical and spiral compressors. Service factor isas defined inAPI Standard 613, and shall be 4.6.2LabyrinthType a minimum of 3.0. The labyrinthseal (a typical seal is shown in Figure 2) may include carbon rings in additionto the labyrinths if approved 4.5.2.2 The meshing relationship between gear-timed by the purchaser. Labyrinths may be stationary or rotating. rotorsshallbeadjustableandtheadjustmentshallbe Eductors or injection systems, when used, shall be furnished arranged for positive locking. The adjustment andlocking complete with piping, regulating and control valves, pressure provisions shall be accessible with the rotors in their bearings. be gauges, strainers,and related components. Each item shall piped and valvedto permit its removal during operation of the 5AmericanGear Manufacturers Association,1500 King Sneet, suite 201, Alexandria, Virginia223 14. is compressor.Wheregasfromthecompressordischarge



S T D = A P I / P E T R OS T Db L 7 - E N G L

L777 M 0732290 0 5 b 7 3 2 8 L25

m

API STANDARD 619

8

purging required

Figure 2-Labyrinth Shaft Seal

-

to

Purge

Vent

6

5

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Key: l . Windback labyrinth 2. Seal cage 3. Spacer ring 4. Spacer washer 5. Seal assembly 6. Washer spring 7. Capscrew 8. Spacer ring

L

Figure 3-Restrictive-Ring-Type Seal (Purged)



STD-API/PETRO STD bL9-ENGL L997 H 0732290 05b7329 Ob1

m

ROTARYTVPEPOSITIVE DISPUCEMENFCOMPRESSORS FOR PETROLEUM, CHEMICAL, AND GASINDUSTRY SERVICES

usedforthemotivepower oftheeductor,provisionsmust made for sealing during startup and shutdown.

4.6.4

be

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0

4.6.3.2 If an ejector system is used, it shall be provided with automatic control to maintain the desired seal chamber pressure. The motive fluid shall be inert gas or compressor discharge gas,as specified. 4.6.3.3 The purchaser and the vendor shall mutually agree if buffer gas injection is required for the specified operating conditions in addition to any sealing medium.

4.6.3.4 Pipingforcontinuousbuffergasinjectionshall includea150-micron(100-mesh)strainer,automaticdifferential pressure controller, low-pressure alarm, and buffer gas be specipressuregauge. Any alternativearrangementshall tmosphere. furnished the under purchaser. Oilleakage to minimize theoilby fied

Dry Screw Type Compressors

4.6.4.1.1 Single mechanical-type seals (see Figure 4) shall beprovidedwithlabyrinthsandslingers to minimizeoil leakagetotheatmosphere or intothecompressor.Oil or other suitable liquid furnished under pressureto the rotating faces may be supplied from the lube oil system or from an independentoilsysteminaccordancewith 4.10. Gasbuffered dry--type seals are also available for special applications (see Fieme 5).

4.6.3.1 Restrictive-ring-typeseals(seeFigure 3) shall include rings of carbon or other suitable material mounted in retainers or spacers. The sealsmay be operated dry, as in the labyrinth type, or with a sealing liquid, as in the mechanical type. O

Mechanical () Type

4.6.4.1 Seals for

4.6.3Restrictive-RingType

4.6.4.1.2 Mechanical-typesealsshallincorporateaselfclosing feature to prevent uncontrolled gas leakage from the compressor on shutdown and loss of seal oil pressure. 0

4.6.4.1.3 Whennoprocessgasleakageis permitted, provisions shall be included to keep oil pumps operating to prevent leakageor by other means. 4-6-42 sealsforFlooded 4.6.4.2.1

screwc~~~~~~~

Mechanical-typesealsshall

be provided to

Key: 1. Bushing retainer 2. Bushing sealring 3. Snapring 4. Wavewasherspring 5. Rotationlockpin 6. O-ring 7. Sealhousing 8. Facesealring 9. Snapring 10. Compression ring 11. Spacer 12. O-ring 13. O-ring 14. Shoulder 15. Runner A. Sealface B. Bufferingoilinlet C. Clean oil return D. Clean oilreturn E. Leakage oildrain

11

Figure M i l Buffered Mechanical () Seal Assembly COPYRIGHT 2003; American Petroleum Institute

9


API STANDARD 619

10

pressure to the rotating faces may be supplied from the lube oil systemin accordance with4.10. 4.6.42.2 Where gas leakage to atmosphere is notpermissible, oil flooded screws require dual seal designs with independent seal fluid system. 4.6.5LiquidFilm

Note:Themode shapes commonly referred to as the first rigid (translatory or bouncing) mode, the second rigid(conical or rocking) mode, and the (first, second, third ..., nth) bending mode.

Type

Liquid-film typeseals (see Figure6) shall be provided with metallic sealing rings or sleeves and labyrinths to minimize oil leakageto the atmosphere andinto the compressor.A sealing liquid shall be supplied (asin the mechanicaltype). 4.6.6Self-ActingGas

Seal

4.6.6.1 Seal arrangement shall be single, double,or tandem as specified.

e

4.7.12 A rotor bearing system in resonance willhave its normal vibration displacement amplified. The magnitude of amplification and the rate of phase-angle are related to the amount of damping in the system and the mode shape taken by the rotor.

4.7.1.3 When the rotor amplification factor (see Figure 8) as measured at the shaft radial vibration probes, is greater than or equal to 2.5, the corresponding frequency is called a critical speed, and the correspondingshaftrotationalfrequency is also called a critical speed. For the purposes of this standard, a criticallydampedsystem is one in whichthe amplification factoris less than 2.5. 4.7.1.4 An exciting frequency may be less than, equal to, or greater than the rotational speed of the rotor. Potential exciting frequencies that are to be considered inthe design of rotor-bearing systems shall include but are not limited to the following sources:

4.6.6.2 The self-acting gas seal may require external seal gas but does notrequire any liquid for lubrication or cooling. A typical configurationis shown in Figure 7.Where toxic or flammable sealgases are used, an isolating sealis required to prevent uncontrolled leakage to the atmosphere or to the beara. Unbalance in the rotor system. ing housing. This isolating seal shall preferably be capable of b. Oil film instabilities (whirl). acting as a backup seal should the primary seal fail during c. Internal rubs. operation. The seal gas shall be filtered and shall be free of d. any contaminants that form residues. The seal gas source may Pocket ing frequencies. be taken from the compressor discharge or interstage point. e. Gear tooth meshingand side bands. An alternate seal gas sourcemay be used, and may be f.Couplingmisalignment. required during startup or shutdown. g. Loose rotor-system components. Note: other miations are commonly used depending on the particular applih. Hysteretic andfriction whirl. cation.Thesealwillleakasmallamountofsealgas,andmaybeunidireci. Boundary-layer flow separation. tional in operation. For testing considerationsat the seal manufacturers shop forthistypeofsealseeAppendixA. j. Acoustical and aerodynamic cross-coupling forces. k. Asynchronous whirl. 4.6.7Seal Buffer Gas 1. Ball and race frequencies of antifriction bearings. The seal design shall have provisionsfor buffer gas injec4.7.1.5 Resonances of structural systemsmay tion to each seal. The purchaser will specify whether buffer adversely affect the rotor vibration amplitude. Therefore,resgas injection is to be used and, if so, the composition of that onances of structural systems thatare within the vengas. In addition, the vendor shall state whether buffer gas dor’s scope of supplyandthateffecttherotorvibration injection is required for any specified operating conditions. amplitude shall notoccur within the range of specified conWhen buffer gas injection is required, the vendor shall state speeds, unless the resonances are critically damped. tinuous the gas requirements including pressures, flowrates, and filtration, and, when specified, furnish the complete control sys4.7.1.6 Rotors shallbe of a stiff-shaft construction with the tem schematic and bill of material. The method of control first actual lateral critical speed at least 120 percent of the will be specified by the purchaser. maximum allowable speed. Unless otherwise specifieda lateral critical analysisis not required. 4.7 DYNAMICS 4.7.1

Note: In most cases based on historical data the vendor will be able to demonstratethatthemachinehasastiffshaftdesign.

Critical Speed

4.7.1.1 When the frequency of a periodic forcingphenomenon (exciting frequency) applied toa rotor-bearing system coincides witha natural frequency of that system, the system may be in a state of resonance.

4.7.2TorsionalAnalysis 4.7.2.1 Excitations of undamped torsional natural frequencies may come from many sources, which shouldbe consid-

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STD.API/PETRO S T D bL7-ENGL L777 E 0732270 05b733L 7 L T m ROTARY TYPEPoSmE DISPLACEMENT COMPRESSORS FOR PETROLEUM, CHEMICAL, AND GASINDUSTRY SERVICES

-Gas

buffer

11

Key: 1. Housing 2. Seal ring Shoulder 3. 4. Piston ring 5. Pistonringretainingplate 6. Pistonringretainer 7. Assemblylock 8. Compression spring 9. Spacer 1O. Rotation lock 11.O-ring 12.O-ring 13.Compressionspring 14.Assemblylock A. Sealingdam

Figure M a s Buffered orDry -Type Seal Assembly

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Key: 1. Sealringassembly 2. Inner end retaining ring 3.Coverplate 4. Sleeve 5. Spring 6. Rotation lock 7. O-ring 8. Socketheadcapscrew 9. Hexagonheadcapscrew 10. Gasket 11. Shaft sleeve 12. Locknut 13. Hexagon head capscrew 14. Carbon ring assembly 15. Wave washer 16. Shoulder ring A. Oilinlet B. Contaminated oil drain

Figure &Liquid Film Seal



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S T D . A P I / P E T R OS T D

bLS-ENGL

L997 m 0732270 05b7332 b5b

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API STANDARD 619

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lntemal

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Main primary seal

Backup seal or isolating seal

"-

" " " " " "

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Figure 74elf-Acting Gas Seal



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S T D - A P I / P E T R O S T D bL9-ENGL L997 m 0732270 05b7333 592 m ROTARYTYPEPOSITIVE DISPLACEMENT COMPRESSORS FOR

PETROLEUM, CHEMICAL, AND GASINDUSTRY SERVICES

13

4.7.3VibrationandBalance

ered in the analysis. These sources may include but are not limited to the following:

as the 4.7.3.1 Majorpartsoftherotatingelement,such be shaft,timinggears,andnonintegralthrustcollarsshall individually dynamically balanced. When a bare shaft with a single keyway is dynamically balanced, the keyway shall be filled with a fully crowned half key. The initial balance correction to the bare shaft shall be recorded. A shaft with keyways 180 de,gees apart but not in the same transverse plane as described above. shall also be filled

a. Gear problems suchas unbalance and pitch line runout. b. Start-upproblemssuch as speeddetentsandothertorsional oscillations. c. Torsional transients such as star-ups of synchronous electric motors and transients due to generator phase-to-phase fault or phase to ground fault. d. Torsional excitation resulting from drivers suchas electric motors and reciprocating engines. e. Hydraulic governors and electronic and controlloop resonances from variable-frequency motors. f. One- and two-times line frequency. g. Running speed or speeds of all rotating elements. h. Pocket ing frequency.

4.7.3.2 The rotors and timing gears shall be matchmarked or keyed. This assembly shall be check-balanced (including keys). Exposed keys and unfilled keyways are unacceptable. The maximum unbalance shall be per grade G1.O of IS0 1940/ANS16S2.19 corresponding t0-4W1N or 7 g-mm (0.01 oz-in), whichever is greater. Note: Unbalanceis expressed inIS0 tem as balance quality of IS0 1940 or in U.S. Customaryunits as:

4.7.2.2 The undamped torsional natural frequencies of the complete train shallbe at least10percent above or10 percent below any possible excitation frequency within the specified operating speed range (from minimum to maximum continuous speed).

U = 4WIN Where:

U = unbalance per plane, oz-in. W = load perjoumal, p o u n d s . N = rotativespeed,rpm. Note: Balancing small screw compressors with speeds up to 25,000 rpm to

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4WlN would lead to extremely small unbalancevalues, which are not practi4.7.2.3 Torsionalcriticals at twoormoretimesrunning cal to achieve. The specified minimum unbalance limit typically results in speeds shall preferably be avoided or, in systems in which satisfactory lateral vibrationlevels. corresponding excitation frequencies occur, shall be shown to e 4.7.3.3 Thecalibration of therotorbalancing machine have no adverse affect. In addition to multiples of running be verified in accordance with the balancing machine shall speeds, torsional excitations that are not a function of operatmanufacturer’s procedure on at least a 60 day basis. When be coning speeds or thatare nonsynchronous in nature shall be performed in sidered in the torsional analysis when applicable and shall be specified, the residual unbalance check shall F. accordance with Appendix shown to have no adverse effect. Identification of these frequencies shall be the mutual responsibility of the purchaser Note: If the actual rotor is used,the numberof test weights shall correspond to the numberof lobes on the rotor. and the vendor. 4.7.3.4 Duringtheshoptest of themachine,assembled 4.7.2.4 Whentorsionalresonancesarecalculated to fall with the balanced rotor operating at maximum continuous within the margin specified in 4.7.2.2 (andthe purchaser and speed or at any other speed within the specified operating the vendor have agreed that all efforts to remove the critical speed range, the vibration shall be measured in accordance from within the limiting frequency range have been with M I Standard 670. Acceptance limits are to be agreed exhausted), a stress analysis shall be performed to demonbetween purchaser and vendor. Unless otherwise specified the strate thatthe resonances have no adverse effect on the comlimits in Table 1 will apply. plete train. The acceptance criteria for this analysis shall be mutually agreed upon by the purchaser and the vendor. 4.7.3.5 When shaft vibration probes are supplied, electrical and mechanical runout shall be determined and recorded by O 4.7.2.5 When specified, the vendor shall perform a torrolling the rotor in V-blocks at the journal centerline while sional vibration analysis of the complete coupled train and measuring runout with a noning vibration probe and a shall be responsible for directing the modifications necessary dial indicator at the centerlineof the probe location and one to meet the requirements of 4.7.2.1 through 4.7.2.4 probe-tip diameter to either side.

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4.7.2.6 In additiontothetorsionalanalysisrequiredin 4.7.2.2 through 4.7.2.5, the vendor shall perform a transient torsional vibration analysis for synchronous driven units and/ or variablespeedmotors.Theacceptancecriteria for this analysis shall be mutually agreed upon by the purchaser and the vendor.


4.7.3.6 Accuraterecords of electricalandmechanical runout, for the full 360 degrees at each probe location, shall be included in the mechanical test report. bAmerican National Standards Institute, 1 1 West42ndStreet,New New York 10036.


York,

S T D * A P I / P E T R O S T D bLS-ENGL L777 W 0732290 05b7334 429 W API STANDARD 61 9

14

4.7.3.7 Ifthevendorcandemonstratethatelectrical or mechanical runoutis present, a maximum of 25 percent of the 1 Table in 1 or test level calculated from Equation 6.5 micrometers (0.25 mil), whicheveris greater, may be vectonally subtracted from the vibration signal measured during the factory test.

Note: The rating life is the number of hours at the normal bearing load and speed that 90percent of a group of identical bearings will complete or exceed before the first evidence of failure.

4.8 BEARINGS

4.8.2AntifrictionBearings

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4.8.1 General Hydrodynamic radial and thrust bearings shall be required under the following conditions:

'

a.On screwcompressorswithdriversrated greater than 225 kW (300 horsepower),unlessspecificapproval is obtained from the purchaser. b. Where antifriction-bearing dmN factors exceed the limits Table in 2. Table 1-Vibration Limits for Screw Compressors Measurementon Bearing Housing

Hydrodynamic Journal Bearings

Antifriction Bearings

vu<5mm/sRMs (0.2 ids)

Vu<8dsRMS

Vf < 2.8 m m l s RMS (0.1 ids)

Vf c 5 mm/s RMS (O2i d s )

50%

50%

Vibration at any speed within the operating mge Overall

Discrete frequencies allowable Incnase in vibration at speeds beyond operating speed but less than trip

(0.3 ids)

speed

4.8.2.1 Antifriction bearings shall be retained on the shaft and fitted into housings in accordance with the requirements of AFBMA Standard 7; however, the device used to lock ball thrust bearings to the shaft shall be restricted by a nut with a tongue-type lock washer,for example seriesW.

4.8.2.2 Exceptforthe angular type,antifriction bearings shall havea loose internal clearance fit equivalent to ABMA Symbol 3, as defined in ABMA Standard 20. Single be of the Conrad type (no filling or double-row bearings shall slots). 4.8.2.3 Ball-type thrust bearings shall beof the duplex, single row, 0.7 radian (&degree) angular type (7,000 series),installedback-to-back(db).Theneedfor bearing clearance for preload shall be determined bythe vendor to suit of 4.8. l. the application and meet the bearing life requirements 4.8.3HydrodynamicRadialBearings 4.8.3.1 Hydrodynamicradialbearingsshall be precisionbored, andof the sleeveor pad type, with steel-backed babbitted replaceable liners, pads, or shells. The bearings shall be equippedwithantirotationpinsandshall be positively secured in theaxial direction. Table 2-Antifriction Bearing Limiting dmN Factors

Measurement on shaft

-

Hydrodynamic journal

adjacent to bearing

Vibrationat any speed within the operatingrange

c. When standard antifriction bearings fail to meet an L,,, rating life (seeA B M A 7 Standard 9) of 50,000 hours with continuous operation at normal conditions.

bearings

BearingTYPe

A shall bethelesservalue

41.03 X

in

-./l6,000/rpm

-

of: (1)

in mils

or 63 pm (2.5 mils) Increase allowable in vibration at speeds beyond operating speed but less that h P speed

50%

Where:

Vu = uufïlteredvelocity. Vf = filtered velocity: pocket ing fresuencyand vibrations from sources other than the compressor (e.g. driver,gear box) mto be filtered out. A = unfiltereddoubleamplitude of vibration. rpm = max. continuous s p e d in revolutions per minute. RMS = roof mean squale.


Radial: single row ball bearings cylindrical roller bearings

static oil Lubricated (Splash)

R e S S oil Lubricated

500,000 450,000

Radial: tapend roller bearings spherical roller bearings

350,000 300,000

Thrust: single row ball bearings

200,000

350,000

m9000 230,000

~ O ,O o

Thrust: double row angular tapered roller bearings

250.000

Where: dm = mean bearing diameter = (d+D)/Z(mm) N = shaftspeed(rpm) 7American

Bearing Manufactums Association, 1101 ConnecticutAvenue,

N.W.,Suite 700,Washington, D.C. 20036.


S T D - A P I / P E T R O S T D bL7-ENGL L777 W 0732270 05b7335 3 b 5

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ROTARYTYPE POSITIVE DISPLACEMENT COMPRESSORS FOR PETROLEUM, CHEMICAL, AND GASINDUSTRY SERVICES

4.8.3.2 Thebearingdesignshallsuppresshydrodynamic instabilities and provide sufficient damping over the entire range of allowable bearing clearancesto limit rotor vibration to the maximum specified amplitudes (see Table 1) while the unit is operating loaded or unloaded at specified operating speeds including operation at any resonant condition. 4.8.3.3 Bearings shall be designed to prevent their installation backwards and/or upside down. 4.8.4Hydrodynamic

Thrust Bearings

4.8.4.1 Unlessotherwisespecified,replaceablethrustcollars shall be furnished and shall be positively locked to the shaft to prevent fretting. 4.8.4.2 Thrust bearings shall be sized for continuous operation under the most adverse specified operating conditions. Calculations of the thrust force shall include but shall not be limited to the following factors: a. Step thrust fromall diameter changes. b. Stage differential pressures. c. Variations in inlet and exhaust pressure. d. External loads from driven equipment. e. Thrust forces from flexible element couplings.

4.8.4.3 Theactivesides of hydrodynamicthrustbearings shall be of the babbitted multiple-segment, self-leveling tilting-pad type or other types approved by the purchaser, sized for continuous operation under all specified operating conditions(includingthemaximumallowabledifferentialpressure).Theinactive-sidethrustpadsorsegmentsshall be babbitted and arranged for positive lubrication. 4.8.4.4 Add to thethrustbearingloadsthemaximum thrust from the sleeve-bearing-type drive motor if directly connected. 4.8.4.5 If two or more rotor forces are to be canied by one thrust bearing (such as in a gear box), the resultant of the forces shallbeused,providedthedirections of the forces make them numerically additive, otherwise the largest of the forces shall be used. 4.8.4.6 Thrustbearingsshallbearrangedtoallowaxial positioning of each rotor relative to the casing and setting of the bearings’ clearanceor preload. 4.8.4.7 Hydrodynamic thrust bearings shall be selected at no more than 50 percent of the bearing manufacturer’s ultimate load rating. The ultimate load rating is the load, that will produce the minimum acceptable oil-film thickness without

I

I I

I

I I

I

I I

Nm,

Revolutions per minute

Nd = Rotor first critical, center frequency, cycles per minute. Nu, = Critical speed, nth. Nmc= Nl = 4= N2- N1 = AF = =

Maximum continuous speed, 105 percent. Initial (lesser) speed at 0.707 x peak amplitude (critical). Final (greater) speedat 0.707 x peak amplitude (critical). Peak widthat the half-power point. Amplification factor: 4 1 N241

SM = Cß€ = Acl = A, =

Separation margin. Critical response envelope. Amplitude at Ncl. Amplitude at Nu,.

Figure 8”Rotor Response Plot --``,,,,,``,,``,`,,`````,,```,-`-`,,`,,`,`,,`---


15


S T D = A P I / P E T R O STD bL7-ENGL 1797 W 0732290 056733b 2 T 1 16

API STANDARD 619

inducing failure during continuous service or the load that will not exceed the creepinitiation or yield strength of the babbitt at the location of maximum temperature on the pad, whichever load is less. In sizing thrust bearings, consideration shall be given to the followingfor each specific application:

O

O

4.10 LUBE-OIL AND SEAL-OIL SYSTEMS 4.10.1 Unlessotherwisespecified, bearings andbearing housings shall be arrangedfor hydrocarbon oil lubrication. 4.102 Unless otherwise specified, a pressurized oil system shall be furnished to supply oilat a suitable pressure orpressures, as applicable, to the following:

a. The shaft speed. b. The temperature of the bearing babbitt. a. The bearings of the driver and or the driven equipment c. The deflection of the bearing pad. (includingany gear). d. The minimum oil film thickness. b. The governing and control-oil system. e. The feed rate, viscosity, and supply temperature of the oil. c. The seal-oil system if combined with the lube-oil systems. f. The design configuration of the bearing. d. Rotor internal cooling. g. The babbitt alloy. e. Rotors of oil-flooded compressors including slidevalve if h. The turbulence of the oil film. applicable. The sizing of hydrodynamic thrust bearings shall be re4.10.3 Unless otherwise specified, for dry screw compresviewed and approvedby the purchaser. sors pressurizedoilsystemsshallconform to the requirements of API Standard 6 14. 4.9 BEARING HOUSINGS 0 4.10.4 Where oil is supplied froma common system totwo 4.9.1 Bearinghousings for pressure-lubricatedhydrodyormoremachines(such as a compressor, a gear,and a namic bearings shall be arranged to minimize foaming. The motor), the oil's characteristics will be specified by the purdrain system shallbe adequate to maintain the oil foam level chaser on thebasis of mutual agreement with all vendors s u p below shaft end seals. The rise in oil temperature throughthe plying equipment servedby the common oil system. bearing and housings shall not exceed 3OoC(5OOF) under the most adverse specified operating conditions. The bearing out- Note: For flooded screw compressors caution should be exercised in selectinglubrication fluid compatible with the process gas and system internal let oil temperature shall not exceed80°C (180°F). When the coatings. inlet oil temperature exceeds50°C (12OoF),special considerlubrication systems other than those ation shall be givento bearing design, oil flow,and allowable O 4.10.5 Pressure API Standard 614 shall consist of a separately described in temperature rise. Oil outletsfrom thrust bearings shall betandriven oil pump with a suction strainer, a supply and return gential andin the upper halfof the control ring, or, if control system, and oil cooler (when required),a full-flow filter,low rings are not used, in the thrust bearing cartridge. Oil conneclube-oil pressure shutdownswitches,and other necessary tions on bearing housings shallbe in accordance with4.3. instruments. 4.9.2 Compressorsshallhavebearing-housingshaft seals The oil system shall be designed to provide sufficient oil at the driveend to prevent oil leakage. flow at required pressure under all operating, transient and standstill conditions including prelubrication,start, switching 4.9.3 Whenspecified, thrustbearingsandradialbearings auxiliary oil pump, rundown, postlubrication, and maintain shall be fitted with bearing-metaltemperaturesensors inseal oilpressureatstandstillwhenspecified.The requirestalled in accordance withAPI Standard 670. ments of 4.10.5.1 through 4.10.5.8shall apply. 4.9.4 For dry screw compressors provision shall be made Note: SeeAppendix D for oil-flooded screw cornpressonand for alternate oil for mounting two radial vibration probes on each bearing, one system for dry screw compressors. axial position probe on each rotor and a oneevent per revolu4.10.5.1 Oil-containing pressure components shall besteel. tion probe. The probe installation shallbe in accordance with API Standard 670. O 4.1052 A separatelydriven,fullcapacity,automatically controlled standby pump shall be supplied for dry screw comNote: Some smaller machims m a y not accommodate proximity type probes pressors and when specifiedfor flooded screw compressors. due to space limitations. 4.9.5 When specified, bearing housings shall have a threaded connection(s) for permanently mounting vibration transducers in accordance with M I Standard 670. When metric fasteners are supplied, thethreads shall be MS.

4.10.53 Standbypumpsthatareenclosedin may have cast iron cases.

a reservoir

4.1 0.5.4 An oil cooler shall be providedto maintain the oil supply temperature at or below 5OoC(120°F).The oil cooler 0 4.9.6 When specified, a flat surface at least 25 millimeters shall be of a water-cooled, shell-and-tubetype or of a suitable ( I inch) in diameter shallbe supplied for the location of mag- air-cooledtype, as specified.Shell-and-tubecoolersshall netic-based vibration measuring equipment. have water through the tubes. A removable-bundle design is --``,,,,,``,,``,`,,`````,,```,-`-`,,`,,`,`,,`---



STD-API/PETRO STD b19-ENGL L777

m

0732290 05b7337 138 D

ROTARYTYPEPOSVIVE DISPLACEMENT CoMPRESSORS FOR PETROLEUM. CHEMICAL,

--``,,,,,``,,``,`,,`````,,```,-`-`,,`,,`,`,,`---

required forcoolerswithmorethan 0.50 squaremeter (5 square feet)of surface, unless otherwise specified. RemovTEMA*Class able-bundle coolers shall be in accordance with C and shall be constructed with a removable channel cover. an outsidediameteroflessthen Tubesshallnothave 15 millimeters ( Y 8 inch), and the tube wall shall not have a 18 BWG [1.25 millimeters thickness of less than (0.050 inch)]. Unless otherwise specified, cooler shell, chantube sheets shall be of brass; nels, and covers shall be of steel; and tubes shall be of inhibited iralty. U-bend tubes are not permitted. Eachcooler shall be sized to accommodate the total coolingload. To prevent the oil from being contaminated ifthecoolerfails,theoil-sideoperatingpressureshallbe higher than the water-side operating pressure. Coolers shall be equipped with vent and drain connections on their oil and water sides. The vendor shall include in the proposal complete details of any proposed air-cooler. Internal oil coolers are not acceptable.A three-port oil temperature control valve with a manual override or by and flanged steel construction shall be provided in the oil circuitto maintain a constant oil temperature to the equipment. ’


17

located lower in the housing than the filter elements or cartridgebase.Where a specifiedfilterelement is desired, the purchaser will specify the make and model number of the element. Note: Beta ratio is defined as upstream particle count at specified size and larger divided by downstream particle countat specified size and larger.

Filter efficiency is calculated as follows: Filter efficiency (76) =

beta ratio - 1 x 100 beta ratio

Micron particle size implies the shape of a spherical bead: a 10-micronparticle is a spherewith a diameter of 10 microns. Within the element’s recommended maximum pressure drop, 10-microns nominal implies that the efficiency of 10 microns or larger in diameter the filter on particles that are will be an average of 90 percent for the life of the element (corresponding beta ratiois 10). A micron-absolute filter rating is defined as micron size at beta ratio of 75 or greater at any time inthe life of the element. For example, a filter rating may be 10-microns nominal and 25-micron absolute.

elements e 4.10.5.6 Whenspecified, a removablesteam-heatingelement external to the oil reservoir or a thermostatically conand filtration of 25 microns absolute or finer at98.67 percent trolledelectricimmersionheaterwith a sheathof AISP (equivalent to beta ratio 75) minimum efficiency, and with suitable valving for online maintenance shall be supplied. TheStandard Type 300 stainless steel shall be provided for heatfilters shall be located downstream of the cooler. For turbine- ing the charge capacityof oil before start-up in cold weather. The heating device shall have sufficient capacity to heat the driven centrifugal oil pumps, filter cases and heads shall be oil in the reservoir from the specified minimum site ambient suitable for operation at the maximum discharge pressure at the driver’s trip speed. For positive displacement pumps, filter temperature to the manufacturer’s required start-up temperature within 12 hours. If an electric immersion heater is used, cases and heads shall be suitable for operation at a pressure the watt density shall not exceed 2.0 watts per square centinot less than the relief valve setting. Filters that have covers meter (15 wattsper square inch). weighingmore than 15 kilograms (35 pounds)shallhave cover lifters. Filters shall notbe equipped with a relief valve 4.10.5.7 For dry screw compressors, an austenitic stainless be coror an automatic by. filter cartridge materials shall be supplied with the following characsteel oil reservoir shall rosion resistant. Metal-mesh or sintered-metal filter elements teristics and appendages: are not acceptable. Flow shall be from the outside toward the center of the filter cartridge. When the filter design requires a. The capacity to avoid frequent refilling, to provide adecartridges stacked two or more high,a center post and a cap quate allowance for system rundown, andto provide a retenfor the top cartridge shall be used to secure the cartridgesto tion time of at least 3 minutes to settle moisture and foreign the bottom of the filter housing. If the cartridge-to-cartridge matter adequately. t is not self-aligning, a collar shall be used between the of b. Provisions to eliminate air and to minimize flotation stacked cartridgesto ensure alignment. The pressure drop for foreign matter to the pump suction. clean filter elements shall not exceed 15 percent of the total c. Fill connections, an armored gauge glass,a level indicator, 0.30 bar (5 poundsper allowabledirtypressuredrop,or and breathers suitable for outdoor use. square inch) atan operating temperatureof 40°C ( 1 0 0 O F ) and d. Sloped bottomsand connections for complete drainage. normal flow. e. Clean-out openings as largeas is practicable. Cartridgesshallhave a minimumcollapsing differential 4.10.5.8 For flooded screw compressors, an oil separation pressure of 5.0 bar (70 pounds per square inch). The filter vessel or vessels shall be supplied as specified in 4.10.5.8.1 shall be equipped witha valved vent andclean- and*-side valved drain connections. The dirty-side connections shall be through 4.10.5.8.4.

e 4.10.5.5 Dualfull-flowfilterswithreplaceable

Tubular Exchange Manufacturen Association, 25 Noah Broadway. T W town, New York 10591.


9AmericanIron and Steel Institute, 1101 17th Street, N.W., Washington, D.C. 20005.


S T D - A P I I P E T R OS T D

18

617-ENGL

L777 M 0732270 0 5 b 7 3 3 8 071r

m

API STANDARD 619

4.1 1.12 Materials shall be identified in the proposal with their applicable ASTM, AISI, ASME!, or SAE'O numbers, including the material grade (see Appendix B). See 2.1 for use ofother international or national standards. When no such designation is available, the vendor's material specification, givingphysicalproperties,chemicalcomposition,andtest requirements, shallbe included in the proposal.

4.10.5.8.1 The allowable oil carryover (in partsper million) in the process gas stream that leaves the separator, will be specified. Note: Multiple separators may be required for seMces that have stringent limits on oil canyover.

4.1 0.5.8.2 Separators shallbe designed in accordance with Section VIII of the ASME Code and shall be code stamped.

4.1 1.1.3 The vendor shall specify the ASTM optional tests and inspection procedures that may be necessary to ensure that materials are satisfactory for the service. Such tests and inspections shallbe listed in the proposal. The purchaser may considerspecifyingadditionaltestsandinspections,especially for materials used in critical components.

4.10.5.8.3 Unlessotherwisespecified,separatorsshall be constructedofcarbonsteelwith a 3-millimeters('/,-inch) corrosion allowance. Note: Austenitic stainless steel shouldbe specified for corrosive services or applications where the vesselinteriorisfrequently exposed to the atmosphere.

4.10.5.8.4 Separators shallbe equipped with the following characteristics and appendages:

0

4.11.1.4 Thepurchaserwillspecifyanycorrosiveagents present in the motive and process fluids and in the environment, including constituents that may cause stress corrosion cracking.

a. The capacity to avoid fiequent filling and to provide adequateallowanceforsystemrundown. A minimum two- 0 4.11.1.5 Materials exposedto a sourenvironment(wet minuteretentiontimeshall be provided. The vendor shall H$) as defined by NACE" MR-01-90 shall be in accordance specify the proposed separator dimensions and retention time,with the requirements of that standard. Ferrous materials not as well as maximum, minimum, and normal operating levels, covered byNACE MR-01-90shall be limited to a yield in the proposal.See Figure D4 in AppendixD. stren,@h not exceeding620 N/mm2(90,OOOpounds per square b. Internal coalescing filtration and impingement bafftes, as inch) anda hardness not exceeding RockwellC 22. necessarytoachievethespecifiedallowableoilcarryover Note: It is the responsibility of the purchaser to determine the amount of H,S concentration. that may be present, considering normal operation, start-up, shutdown, idle c. Unless otherwise specified, a flanged safety relief valve in standby, upsets, or unusual operating conditions such as catalyst regeneration. accordance with 5.4.3.6. d. A flanged opening (Cinch minimum) for servicing and In many applications, small amountsof H2S are sufficient cleaning of the separator intemals. to require NACE materials. Whenthere are trace quantitiesof e. Separate flanged vent, filter drain (if applicable), oil return, H2S known to be present or if there is any uncertainty about oil fill, and drain connections. the amount of H,S that may be present, the purchaser should data sheets that NACE materialsare automatically note on the f. A flanged, armored level gauge. required. Componentsthat are fabricated by welding shall be g. A baffle by the gas inlet opening to help direct gas upward stress relieved, if required, so that both the welds and the and oil downward. heat-affectedzonesmeettheyieldstrengthandhardness h. Stilling tubes on oil fill andreturn connections to direct oil requirements. The purchaser will specify on the data sheets to a level below the minimum operating level. the presenceof such agentsin the media. i. A vortex breaker upstreamof the oil outlet connection. j. Whenspecified,separate,flanged,levelswitch,pressure 4.1 1.1.6 The minimum quality bolting material for presdifferential indicator, pressure indicator, oil conditioner inlet, sure ts shall be carbon steel (ASTM A 307, Grade B) oil conditioner outlet, and electric heater connections. forcast iron casings andhightemperaturealloy steel k. When specified, separate austenitic stainless steel thermow- (ASTM A 193, Grade B7) for steel casings. Nuts shall conell connections fora temperature gauge and/or switch(es). form to ASTM A 194, Grade 2H (or ASTM A 307,Grade B, case hardened, where spaceis limited). For temperatures 4.1 1 MATERIALS below -3O'C (-2093 low-temperature bolting material in accordance with ASTMA 320 shall be used. 4.1 1.1 General 4.1 1.1.7 If parts exposed to conditions that promote inter4.11.1.1 Materialsof constructionshall be themanufacgranular corrosion are to be fabricated, hard faced, overlaid, turer's standard for the specified operating conditions, except as required or prohibited by the data sheets or this standard loSociety of Automotive Engineers International, 400 Commonwealth Drive, (see 5.5 for requirements for auxiliary piping materials).The Warrendale, Pennsylvania 15096-OOOl. metallurgy of all major components shallbe clearly stated in "National Association of Conosion Engineers International, P.O. Box 218340, Houston, Texas77218-8340. the vendor'sproposal. --``,,,,,``,,``,`,,`````,,```,-`-`,,`,,`,`,,`---



S T D * A P I / P E T R O S T D bL7-ENGL L977 m 0732270 05b7337 T O O ROTARYTYPEPOSITIVE DISPLACEMENT COMPRESSORS FOR PETROLEUM, CHEMICAL, AND GASlNDUSTRY SERVICES

19

standard method. Mold-parting fins and remains of gates and risers shallbe chipped, filed,or ground flush.

Note: Overlaysor hard surfaces that contain more than 0.10 percent carbon can sensitize bothlow-carbon and stabilized grades of austenitic stainless steel unless a buffer layer that is not sensitive to intergranular corrosion is applied.

4.1 1.2.2 Nodular iron castings shall be produced in accordance withASTM A 395. The production of the castings shall also conform to theconditions specified in 4.1 1.2.2.1 through 4.1 1.2.2.5.

4.11.1.8 Wherematingpartssuch as studs andnuts of AIS1 Standard Type 300 stainless steel or materials with similar galling tendencies are used, they shall be lubricated with an antiseizure compound of the propertemperature specification and compatible with the specified gas. Note: Torque loading values will differ considerably with and without an antiseizure compound.

4.11.1.9 Materials, casting factors, and the quality of any W, Diviwelding shallbe equal to those required by Section sion 1, of the ASME Code. The manufacturer’s data report forms, as specified in the code,are not required. 4.11.1.10 External parts that are subjectto rotary or sliding motions (suchas control linkagets and adjusting mechanisms) shall be of corrosion-resistant materials suitable for the site environment. 4.1 1.1.11 Minor parts that are not identified (such as nuts, springs,washers,gaskets,andkeys)shallhavecorrosion resistance at least equal to that of specified parts in the same environment. 4.1 1.1.12 When dissimilar materials with significantly different electrical potentials are placed in in the presence ofan electrolyticsolution,galvaniccouplesthatcan result in serious corrosion of the less noble material may be created. If such conditions exist, the purchaser and the vendor should select materialsin accordance with the NACE C o m Sion Engineer’s ReferenceBook. 4.11.1.13 The useof ASTM A 515 steel is prohibited. Low-carbon steels can be notch sensitive and susceptible to brittle fracture at ambient orlow temperatures. Therefore, only fully killed, normalized steels made to fine-grain practice are acceptable.

4.11.22.1 A minimum of one set (threesamples) of Charpy V-notch impact specimens at one-third the thickness of the test block shall be made from the material adjacentto the tensile specimen on each keel or Y-block. These specimens shall havea minimum impact value of14.0 joules (10 foot-pounds) at mom temperature. 4.11.22.2 The keel or Y-block cast at the end of the pour shall be at least as thick as the thickest section of the main casting.

--``,,,,,``,,``,`,,`````,,```,-`-`,,`,,`,`,,`---

or repaired by welding, they shall be made of low-carbon or stabilized gradesof austenitic stainless steel.

4.11 22.3 Integrallycasttestbosses,preferablyat least be 25millimeters (1 inch) inheightanddiameter,shall providedatcritical areas ofthe castingforsubsequent removal for the purposes of hardness testing and microscopic examination.Criticalareas are typicallyheavysections, as drilled lubrication section changes, high-stress points such ports, flanges, and other points points, the cylinder bore, valve agreed upon by the purchaser and the vendor. Classification of graphite nodulesshall be in accordance withASTM A 247. 4.11 2.2.4 An as-castsamplefromeachladleshall chemically analyzed.

be

4.1 1.2.2.5 Brinell hardness readings shall be made on the actualcastingatfeasiblelocationsonsectionchanges, flanges, the cylinder bore, and valve ports. Sufficient surface material shall be removed before hardness readings are made to eliminate any skin effect. Readings shall also be made at the extremities of the casting at locations that represent the sections poured first and last. These shall be made in addition to Brinell readingson the keel or Y-blocks. 4.1 1.2.3 The use of chaplets in pressure castings shall be held to a minimum. They shall be clean and corrosion-free the (plating permitted) and ofa composition compatible with casting.

4.1 1.1.14 O-Rings shall be compatible with all specified services.Forhigh-pressureservices,specialconsideration shall be given to the selection of O-Ringsto ensure that they will 4.1 1.2.4 Ferrous castings shall notbe repaired by welding, of the compressor. not be damaged upon rapid depressuring as peening,plugging,burningin,orimpregnating,except specified in 4.1 1.2.4.1 and 4.1 1.2.4.2. Note: Susceptibilityof an O-Ring to damage fromexplosive decompression depends onthe gas to which the O-Ring is exposed.The compounding of the elastomer, temperatureof exposure, the rate of decompression,and the num ber of cycles.

4.11.2

Castings

4.11.2.1 Castingsshall be soundandfree from porosity, hot tears, shrink holes,blow holes, cracks, scale,blisters, and similar injurious defects. Surfaces of castings shallbe cleaned by sandblasting, shotblasting, chemical cleaning, or any other COPYRIGHT 2003; American Petroleum Institute

4.112.4.1 Weldablegradesofsteel castings may be repaired by welding,using a qualifiedwelding procedure based on the requirements of Section VIII, Division 1, and Section M of theASME Code. 4.1 1.2.4.2 Cast gray iron or nodular iron may be repaired by plugging within the limits specified in ASTM A 278, A 395, or A 536. The holes drilled for plugs shall be carefully examined, using liquid penetrant, to ensure that all defective Document provided by IHS Licensee=BP Amoco/5928366101, =, 03/18/2003 01:22:58 MST Questions or comments about this message: please call the Document Policy Management Group at 1-800-451-1584.

20

API STANDARD 619

shall be heattreated

material has been removed. Allrepairs that are not coveredby ASTMspecificationsshall be subject to the purchaser's approval.

requirepost-weldheattreatment regardless of thickness.

4.1 1.4.1 Welding of piping and pressure-containing parts, as well as any dissimilar-metal welds and weld repairs, shall be performedandinspected by operators and procedures qualified in accordance with Section WI, Division 1, and Section IX of the ASME Code.

4.11.4.5.3 When heat treatment is required, piping welds shall be made before the component is heat treated.

4.1 1.4.5 Connections welded to pressure casings shall be installed as specified in 4.1 1.4.5.1.through 4.1 1.4.5.5. 4.1 12.5 Fully-enclosed cored voids, including voids closed by plugging, are prohibited. 0 4.1 1.4.5.1 In addition to the requirements of 4.1 1.4.1, the purchaser may specify that 100-percent radiography, magnetic particle inspection or liquid penetrant inspection of welds is 4.11.3Forgings required. Unless otherwise agreed upon by the purchaser and the 4.11.4.5.2 Auxiliary piping welded chromiumto be selectedfromthose vendor,theforgingmaterialshall molybdenum alloy steel or 12-percent chrome steel listed in AppendixB. componentsshall be ofthe samematerial,exceptthat chromium-molybdenum alloy steel pipe may be substituted 4.11.4Welding for 12-percent chrome steelpipe.

4.11.42 The vendor shall be responsible for the review of all repairs and repair welds to ensure that they are properly heat treatedandnondestructivelyexaminedforsoundness and compliancewith the applicable qualified procedures(see 4.11.1.9). Repair welds shall be nondesrructively tested by the same method used to detect the original flaw. As a minimum, the inspection shall be by the magnetic particle method in accordance with 6.2.2.4 for magnetic material and by the liquid penetrant methodin accordance with 6.2.2.5 for nonmagnetic material.

O

4.11.4.5.4 Whenspecified,proposedconnectiondesigns shall be submitted to the purchaser for approvalbefore fabrication.Thedrawingsshallshowwelddesigns,size, materials, and preand post-weld heat treatments. 4.11.4.5.5 Allwelds shall be heattreated in accordance with Section VIU, Division 1, Sections W - I O and W-40, of the ASME Code. 4.1 1.4.6 Unless otherwise specified, all welding other than that covered by Section VIU, Division 1, of the ASME Code and ASME B31.3, such as welding on baseplates, nonpressure ducting, lagging and control s,shall be performed in accordance withAWS Dl. 1.

4.11.4.3 All accessible areas ofweldson built-uprotors shall be inspected by means of magnetic particleor dye penetrant examination.

4.11.5 Impact Test Requirements

4.11.4.4.1 Plateedgesshallbeinspected bymagnetic particle or liquid penetrant examinationas required by Section W I , Division 1, UG-93(d)(3) of the ASME Code.

Note: The published design-allowable stresses for many materials in the ASME Code and ANSI standards are based on minimum teasile properties. The ASME Cade and ANSI standards do not diffemtiate between rimmed, semi-Wed, fully-killed, hot-rolledand normalized material. Nor do they

4.1 15 1 To avoid brittle fracture during operation, maintenance, transportation, erection and testing good design practice shall be followed in the selection of fabrication methods, 4.11.4.4 Pressurecontaining casingsmadeofwrought materials or combinationsof wrought and cast materials shall welding procedures and materials for vendor furnished steel pressure retaining parts that may be subject to temperature conformtotheconditionsspecifiedin4.1 1.4.4.1through below the ductile-brittle transition point. 4.1 1.4.4.4

talceintowhethermaterialswereproducedunderfineorcoursegrain

practices. The vendor shall exercise caution in the selection of materials

4.1 1.4.4.2 Accessible surfaces of welds shall be inspected intended for services between W C ( 1 OOOF)and -309C (-2o"r). by magnetic particle or liquid penetrant examination after back chipping or gouging and again after post-weld heat treatment.4.11.5.2 Allpressurecontainingcomponentsincluding be impacttestedin nozzles,flanges andweldmentsshall WII, Division 1, accordance with the requirements of Section 4.1 1.4.4.3 Pressure-containingwelds,includingweldsof Sections USC-65 through 68of the ASME Code. High-alloy the case to horizontal-and vertical-t flanges, shallbe fullsteels, shall be tested in accordance with Section W, Divipenetration welds. sion 1, SectionUHA-51 of the ASME Code. 4.1 1.4.4.4 Casings fabricated from materials that, Impact testing is not required if the requirements of Secaccording to Section W I , Division 1, of the ASME Code, tion W, Division 1, Section UG-20f of the ASME Code are --``,,,,,``,,``,`,,`````,,```,-`-`,,`,,`,`,,`---



O

0 5.1.2 Anticipated process variations that may affect the sizmet.Nominalthicknessforcastings as definedinSection ing of the driver (such as changes in the pressure, temperaVIII, Division 1, paragraph UCS-66 (2) of the ASME Code ture, or properties of the fluid handled, as well as special plant as feet or lifting shall exclude structural sections such start up conditions) willbe specified. lugs. The results of the impact testing shall meet the minimum impact energy requirements of Section VIII, Division 1, 5.1.3 Thestartingconditionsforthecompressorshallbe section UG-84 ofthe ASME Code. be mutually agreed specified and the starting method shall upon by the purchaser and the vendor. The driver’s starting 4.11.5.3 Thepurchaserwillspecifytheminimumdesign torque capabilities shall exceed the speed-torque requiremetal temperature used to establish impact test requirements. ments of the compressor.

Note: Normally, this will be the lower of the minimum surrounding ambient temperature or minimum fluid pumping temperature. However, the purchaser may specify a minimum metal temperature based on fluid pumped properties such as auto-refrigeration at reduced pressures.

Note: Consideration should be given to starling the compressor at normal suction pressure. 0

4.12 NAMEPLATES AND ROTATIONARROWS

5.1.4 The purchaser will specify the type of motor, and its characteristics and accessories, including the following:

a. Electrical characteristics. b. Starting conditions (including the expected voltage drop on starting). c. The type of enclosure. d. The sound pressure level. 4.122 Rotation mows shall be cast in or attached to each major itemof rotating equipmentat a readily visible location. e. The area classification, based on M I Recommended Pracbe of AIS1 Nameplates and rotation arrows (if attached) shall tice 500. Standard Type 300 stainless steel or of nickel-copper alloy f. The type of insulation. of the (Monel or its equivalent). Attachment pins shall be g. The required service factor. same material. Welding is not permitted. h. The ambient temperature and elevation above sea level. i. Transmissionlosses. 4.12.3 Thepurchaser’sitemnumber,thevendor’sname, j. Temperaturedetectors,vibrationsensors,andheaters,if the machine’s serial number and the machine’s size and type, these are specified. as well as its minimum and maximum allowable design limits k. Auxiliaries (such as motor-generatorsets,ventilation andratingdata(includingpressures,temperatures,speeds blowers, and instrumentation). and power), maximum allowable working pressures and temperatures, hydrostatic test pressures, and critical speeds, shall 1. Vibration acceptance criteria. appear on the machine’s nameplate.The purchaser willspecNote: This paragraph is applicable whenno choice is made per 5.1S . ify on the data sheets whether U.S. Customary orSI units are 0 5.1.5 Whenspecified,motordrivesshallconform to API to be shown. Standard 541 or546 as applicable. Motors that are below the power scope of M I Standard 541 or 546 shall be in accorNote: Any lateral critical speeds determined from running tests shall be stamped on the nameplate followed by the word TEST. Critical speeds predance with IEEE12 841. The motor nameplate rating (excludicted by calculation upto and including the critical speed above trip speed sive of the service factor) shallbe at least 110 percent of the and not identifiable by test shall be stamped on the nameplate followed by maximum power required for any of the specified operating the abbreviationCALC. conditions. Equipment driven by induction motors shall be rated at the actual motorspeed for the rated load condition. 4.13 QUALITY

4.12.1 A nameplate shall be securely attached at a readily visible location on the equipment and on any other major piece of auxiliary equipment.

O

Note: When motor standardis selected in accordance with this paragraph, the requirements in 5.1.4 become part of the motorstandardand 5.1.4 is not applicable.

Refer toAPI Recommended Practice683 for guidelines on improving the quality of equipment. 0

5 Accessories 5.1 DRIVERS 0

5.1.1 The type of driver will be specified. The driver shall be sized to meet maximum specified operating conditions, and shallbe in including externalgear and/or coupling losses, accordancewithapplicablespecifications, as statedinthe be suitable for satisfactory inquiry and order. The driver shall operation under the utility and site conditions specified.

5.1.6 Themotor’sstartingtorquerequirementsshall be met at a specified reduced voltage and the motor shall accelerate to full speed within a period of time agreedupon by the purchaser and the vendor. Note: For most applications, the starting voltageis typically 80 percent of the normal voltage, and the time required to accelerate to full speedis generally less than 15 seconds. I*lnstituteof Electrical and Electronics Engineers, 345 East 47th Sueet, New York, NewYork 10017-2394.

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0732270 05b73V2 5T5 W

STD*API/PETRO STD bl7-ENGL L777 22

API STANDARD 619

m 5.1.7 Steam turbine drivers shall conform to API Standard 61 1or 612 as specified. Steam turbine drivers shall be

jackscrews, or shims. If the equipment is too heavy to use jackscrews, other means shall be provided.

sized to deliver continuously 110 percent of the maximum powerrequired for thepurchaser'sspecified conditions while operatingat a corresponding speed withthe specified steam conditions.

5.3.1.2.3 Machinery s shallbedesigned to limit a change ofalignmentcausedbytheworstcombinationsof pressure, torque, and allowable piping stress to 50 micrometers (0.002 inch) at thecouplingflange (see 4.5 forallowable piping forces).

O

5.1.8 Gears shall conform to API Standard 677 or 613 as specified.

5.1.9

For drivers that weigh more than 250 kilograms (500 pounds), the equipment feet shall be provided with vertical

jack screws. 5.2COUPLINGSANDGUARDS 5.2.1 Unless otherwisespecified,flexibleelementcouplings andguards between drivers and driven equipment shall be supplied bythe manufacturer of the driven equipment.

5.3.12.4 Wherecenterlines are provided,they the machine to shall be designed and manufactured to permit be moved using the horizontal jackscrews. 5.3.1 2.5 Unless otherwise specified, epoxy grout shall be used. The vendorshall commercially sandblast,in accordance with SSFC SP 6, all the grouting surfaces of the mounting plates and shallprecoat these surfaces witha catalyzed epoxy primer. The epoxy primer shall be compatible with epoxy grout. The vendor shallsubmit to the purchaser instructions for field preparationof the epoxy primer.

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5 2 2 Coupling to stiaft junctures and guards shall conform to MI Standard 671. The make, type, and mounting arrange- Note: Epoxy primers have a limited life after application.The grout manufacturer should be consulted to insure proper field preparation of the mounting ment of couplings shall be agreed upon by the purchaser and plate for sarisfaaorybonding of the p u t . the vendorsof the driver and driven equipment. 5.3.1 2.6 Anchor bolts shall notbe used to fasten machinery 5.2.3 Informationon shafts, keywaydimensions(ifany), to the mounting plates. and shaft end movements due to end play and thermal effects shall be furnished to the vendor supplying the coupling. 5.3.1.2.7 Mounting plates shall not be drilled for equipment to be mounted by others. Mounting plates shall be supplied 5.2.4 Thepurchaserofthecouplingshallsupplyidling with leveling screws. Mounting plates that are to be grouted adapter, as requiredforthemechanicalrunningtest(see shall have 50-milIimeter-radíused(2-inch-radiwed)outside 6.3.3.1.7). comers (in the plan view). Mounting surfaces that are not to be grouted shall be coated with a rust preventive i&ediately 5.3MOUNTING PLATES after machining. 5.3.1 General 5.3.1 2.8 Mounting platesshall extend at least 25 millimem O 5.3.1 .I The equipment shallbe furnished with soleplatesor (1 inch) beyondthe outer thm sides of equipmentfat. a baseplate, as specified on thedata sheet. 5.3.12.9 The vendor of the mounting plates shall furnish 5.3.1.2 In 5.3.1.2.1. through 5.3.1.2.10, the tem mounting stainless steel(AIS1 Standard Type 300) shim packs3- to 15pkzre refers to both baseplates and soleplates. millimeters (V,,- to '/,-inch) thick between the equipment feet and the mounting plates. All s h i m packs shall straddle the 5.3.12.1 All machinery mounting surfaces on the hold-downboltsandverticaljackscrewsand be at least mountingplatesshallbemachinedflatandparallelafter 5 millimeters (V4 inch) larger on all sides than the footprint of fabrication and shall extend at least 25 millimeters (1 inch) the equipment. beyond the outer three sidesof the equipment feet to prevent a soft foot.All surfaces onwhich a piece of equipment 5.3.1 2.1O Anchor bolts willbe furnished by the purchasermounts shall beinthe same plane within 50 micrometers (0.002inch) (see Figure 9). The maximum surface finish shall 5.3.12.11 Fastenersforattachingthecomponents to the mountingplatesandjackscrewsforlevelingthepedestal be 3.2 micrometers(125 microinches)Ra. soleplates shallbe supplied by the vendor. 5.3.122 When the equipmentedweighsmore than 250 kilograms (500 pounds), the mounting plates shall 5.32 Baseplates be furnished with axial and lateral jackscrews the samesize as or larger than the vertical jackscrews. Vertical jackscrews 0 5.3.2.1 When a baseplate is specified, thepurchaserwill indicate the major equipment to be mounted on it. A baseto prevent marring of in the equipment feet shall be arranged plate shall be a single fabricated steel unit, unless the purshimming surfaces. The lugs holding these jackscrews shall that it may be chaserandthe vendormutuallyagree so that the lugs do not be attached to the mounting plates fabricated in multiple sections. Multiplesection baseplates interfere with the installation or removal of the equipment, COPYRIGHT 2003; American Petroleum Institute


S T D - A P I / P E T R O STD bLS-ENGL L977 m 0732270 05673I43 y 3 1

ROTARY TYPEPOSITIVE DISPLACEMENT COMPRESSORS FOR PETROLEUM. CHEMICAL,

AND

GASINDUSTRY SERVICES

~

~~~

TOP VIEW OF FOUNDATION AT FOUNDATION BOLT

7 Final after grout level

shimming is complete

/-

bolt

sleeve

Note: Epoxy grout is not to anchorbolt. Prevent leveling jackscrewfrom adheringto epoxy grout by applyingwax, grease,or other protedant.

Figure 9A-Typical Mounting Plate Arrangement --``,,,,,``,,``,`,,`````,,```,-`-`,,`,,`,`,,`---



23

~

~___~_______

STD*API/PETRO STD

~_______

bL7-ENGL L777

0732270 05b734q 378

API STANDARD 619

24

TOP VlRN OF FOUNDATION AT FOUNDATION BOLT

\ Baseplate

/C

Anchorbolt

mounting

Notes: I.Thispouristobemadeaffershimmingiscomplete. 2. Epoxy grout is not to anchor bolt. Revent levelingjacksaw from adheringto epoxy grout by applying w a x , grease,or other protectant.

Figure SB-Tjqical


Mounting Plate Arrangement


--``,,,,,``,,``,`,,`````,,```,-`-`,,`,,`,`,,`---

Optional full bed grout level

STD.API/PETRO STD b29-ENGL 2997 m 0732290 0 5 b 7 3 4 5 204

PETROLEUM, CHEMICAL, AND GASINDUSTRY SERVICES

25

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ROTARY TYPE POSITIVE DISPLACEMENT CoMPRESSORS FOR

m

TOP VIEW OF FOUNDATION AT FOUNDATIONBOLT

Leveling jackscrew

CROSS-SECTION OF FOUNDATIONAT FOUNDATION BOLT

Note: Epoxy groutis not to anchor bolt. Prevent leveling jackscrewfrom adhering to epoxy grout by applying wax, grease, or other protectant.

Figure 9C-Typical Mounting Plate Arrangement



STD*API/PETRO S T D bLS-ENGL L 9 9 7

0 7 3 2 2 9 0 05b734b L l l O

m

API STANDARD 619

26

Baseplate beam / " " " " " -

/

I \

\

/

\

I I

\

I I I l I

l

\

I

'.

/

TOP VIEW OF FOUNDATIONAT FOUNDATION BOL

Leveling jackscrew

--``,,,,,``,,``,`,,`````,,```,-`-`,,`,,`,`,,`---

CROSSSECTION OF FOUNDATION AT FOUNDATION BOLT

Note: Epoxy grout is not to anchor bolt. Prevent levelingjackscrew from adhering to epoxy grout by applying wax grease,or other proteaatlt.

Figure 9D-Tpical


Mounting Plate Arrangement


~

--``,,,,,``,,``,`,,`````,,```,-`-`,,`,,`,`,,`---

STDmAPI/PETRO STD bL7-ENGL 1777

m

0732270 0 5 b 7 3 4 7 087

ROTARYTYPEPOSITIVE DISP~ACEMENT CoMPRESSORS FOR PETROLEUM,

shallhavemachinedanddoweledmatingsurfacestoensure accurate field reassembly. Note: A baseplate with a nominal length of more than I2 meters (40feet) or a nominal width of more than 4 meters (12 feet) may have to be fabricated in

multiple sections because of shipping restrictions.

5.3.22 Unlessotherwisespecified,thebaseplateshall extend under the drive-train componentsso that any leakage from these components is contained within the baseplate.

CHEMICAL, AND

m


5.3.3.1.2 Soleplatesshall be enough to transmit the expected feet to the foundation, but in no than 40-millimeters (1‘/,-inches)

27

steelplatesthat are thick loads from the equipment case shall the platesbe less thick.

5.3.32 Whensubsoleplatesarespecified,theyshallbe steel plates at least 25-millimeters (1-inch) thick. The finish of the subsoleplates’ mating surfaces shallmatch that of the soleplates (see 5.3.1.2.1).

5.3.2.3 When specified, the baseplate shall be suitable for 5.4CONTROLSANDINSTRUMENTATION columnmounting(thatis,ofsufficientrigiditytobe sup ported at specified points) without continuous grouting under 5.4.1 General structural . The baseplate design shall be mutually O 5.4.1.1 The vendor shall provide sufficient compressorperagreed upon bythe purchaser and the vendor. formance data (in accordance with Section 7) to enable the 5.3.2.4 The baseplate shallbe provided with lifting lugs for purchaser to properly design a control system for startup and at least a four-pointlift.Lifting the baseplate complete with for all specified operating conditions. When requested by the all equipment mounted shall not permanently distort or other-purchaser, the vendorshallreviewthepurchaser’soverall wise damage the baseplate or the machinery mounted on it. compressor control system for compatibility with vendor-furnished control equipment. 5.3.2.5 Thebottom of the baseplatebetweenstructural shall be open. When the baseplate is installed on a 5.4.1.2 Unlessotherwisespecified,instrumentation,conconcrete foundation, it shall be providedwithatleastone trols,s,andinstallationshallconformtothe grout hole having a clear area of at least 0.01 square meter requirements ofA P I Standard 614. (20 square inches) andno dimension less than 75 millimeters 0 5.4.1.3 The purchaser will specify controls, instruments, and (3inches)ineachbulkheadsection.Theseholesshallbe A P I Standard 614 data sheets. control requirements on located to permit grouting under all load-carrying structural . Where practical, the holes shall be accessible for 5.4.1.4 All conduit shallbe designed and installedso that it grouting with the equipment installed. The holes shall have can be easily removed without damage and locatedso that it 15-millimeter (‘/,-inch) raised-lip edges, and if located in an does not hamper removal of bearings, seals or equipment area where liquids could impinge on the exposed grout, metal-intemals. lic covers with a minimum thickness of 16-gauge shall be provided. Vent holes at least15 millimeters inch) in size shall 5.4.2ControlSystems be provided at the highest point in each bulkhead section of O 5.4.2.1 The compressor may be controlled on the basis of the baseplate. inlet pressure, discharge pressure, flow, or some combination 5.3.2.6 Unless otherwise specified, nonskid metal decking of these parameters. This may be accomplished by suction be provided on the top covering all walk and work areas shall throttling, speed variation, slide valve volume control device, of the baseplate. or a cooled by from discharge to suction. The control system may be mechanical, pneumatic, hydraulic, electric, or O 5.3.2.7 The mounting pads on the bottom of the baseplate any combination thereof. The system may be manual or it shall be in one plane to permit use of a single-level foundation. may be automatic with a manual override. The purchaser will be provided by the vendor. When specified, subplates shall specify the source of the control signal, its sensitivity and 5.3.2.8 Thebaseplatemountingpadsshall be machined range, and the equipment to be furnished by the vendor. after the baseplateis fabricated. 5.4.2.2 For a variable-speed drive, the control signal shall act to adjust the set point of the driver’s speed-control system. 5.3.3 Soleplates and Subsoleplates Unless otherwise specified, the control and operating speed 5.3.3.1 When soleplates are specified, they shall meet the range shallbe from maximum continuousspeed to 95 percent requirements of 5.3.3.1.1 and 5.3.3.1.2 in additionto those of of the minimum speed required for any specified operating 5.3.2. case or 70 percent of the maximum continuous speed, whichever is lower. 5.3.3.1.1 Adequate working clearance shall be provided at 5.4.2.3 Whenspecified,acombination of controlmodes theboltinglocationstoallowtheuse of socketorbox shall be required on drives with a limited speed range on and wrenches and to allow the equipment to be moved using the horizontal and vertical jackscrews. multiservice or multistream applications.

O

(V,



o 5.4.2.4 Whenconstant-speeddrive is specified, the control signal shall actuate the slide valve V o l k e control device if furnished, or the control valve in the compressor piping.

5.4.3.5VibrationandPositionDetectors 0

5.4.3.5.1 When Specified, noning vibration and axial-positiontransducersshall be supplied,installed,and calibrated in accordance withAPI Standard 670.

5.4.2.5The full range of the specified control signal will correspond to therequiredoperatingrangeofthedriven 0 5.4.3.5.2 Whenspecified,seismicvibrationtransducers equipment. Unless otherwise specified,the maximum control in accordance with shall be supplied, installed, and calibrated signal shall correspond to the maximum continuous speed or A P I Standard 670. the maximum flow. O 5.4.3.5.3 Whenspecified,vibration, axial position,and be supplied and calibrated in seismic monitors shall 5.4.3 Instrumentation accordance withAPI Standard 670. 5.4.3.1 Tachometers 0 5.4.3.5.4 Whenspecified, a bearingtemperaturemonitor A tachometer shall be provided for engine-driven units inaccordancewith API shall be suppliedandcalibrated and, when specified, for other variable speedunits. The type Standard 670. of tachometer will be specified. Unless otherwise specified, the minimum tachometer range shall be from O to 125percent 5.4.3.6ReliefValves of the maximumcontinuous speed. 5.4.3.6.1 The vendor shall furnish relief valves that are to be installed on equipment or inpipingthatthevendor is 5.4.3.2TemperatureGauges supplying.Otherreliefvalves will be furnished bythe Dial-type temperature gauges shallbe heavy duty and corpurchaser. Reliefvalvesforalloperatingequipmentshall rosion resistant. They shall be bimetallic type or liquid-filled API meet the limiting relief valve requirements defined in andatleast 100millimeters (4 inches) in diameter.When RecommendedPractice 520, Parts I and II, andin API specified, gauges 125 millimeters (5 inches) in diameter shall Standard 526. The vendor shall determine the size and the set be supplied. Black printing on a white backgroundis standard pressure of all relief valves related to the equipment. Relief for gauges. valve settings, including accumulation, shall take into consideration all possible types of equipment failure and the protection of the pipingsystems. 5.4.3.3 Thermowells 5.4.3.6.2 Unless otherwise specified, for dry screw compressors, system pressure protection will be furnished by the purchaser.

Temperature gauges that are in with flammable or toxic fluids or that are located in pressurizedor flooded lines shall be furnished with NPS 3/,, AISI Standard Type 300 stainless steel separable solid-bar thermowells, unlessother maw rial is required for compatibility with the process fluid.

5.4.3.6.3 For flooded screw compressors, relief valves on the oil separators will be furnished by the vendor and sized per A P I Recommended Practice 520 (including lire case) or other criteriaas specified.

5.4.3.4PressureGauges Pressuregauges(notincludingbuilt in instxument air gauges)shall be furnishedwith AISI Standard Type 316 stainless steel bourdon tubes and stainless steel movements, W S male alloy steel connections,and at least 100millimeter(4-inch)dials.Whenspecified,110-millimeter (4V2-inch) dials shall be supplied. For the range over 55 bar (800 pounds per square inch) gauges shall be furnished with 150-millimeter(&inch)dials.Blackprintingon a white background is standard for gauges. When specified, liquidbe furnishedinlocationssubject to filledgaugesshall vibration. Gauge ranges shall preferablybe selected so that the normal operating pressureis at the middle of the gauge’s range. In no case, however, shall the maximum reading on setting plus 1O the dial be less than the applicable relief valve percent. Each pressure gauge shall be provided with a device to relieve such as a disk insert or blowout back designed excess case pressure.

5.4.3.7

Flow Indicators

Flow indicators shall be furnished in all atmospheric oildrain return lines. 5.4.4AlarmsandShutdowns 5.4.4.1 General O

5.4.4.1.1 Switches, conml devices, and annunciator as display units shallbe furnished and mounted by the vendor mutually agreed by the purchaser and the vendor and may includethoselisted inTable3.Whenbothalarmand shutdown are specified, the alarm setting shall precede the shutdown setting.

O

5.4.4.12 All compressorsshall be furnishedwithhighdischarge-temperature and low-oil-pressure alarm and shut--``,,,,,``,,``,`,,`````,,```,-`-`,,`,,`,`,,`---



STD.API/PETRO S T D bL7-ENGL 1777 m 0732270 05b7347 7 5 T ROTARYTYPEPOSITIVE DISPUCEMENT COMPRESSORS FOR PETROLEUM, CHEMICAL, AND GAS INDUSTRY SERVICES

Condition Axial position movement Ovenpeed Reverse rotation Unit shutdown Operation of spare lube-oil pump Operation of spare seal-oil pump High radial shaft vibration High frame vibration High winding temperature High bearing temperature High compressor outlet temperatut High gas differential pressure High gas differential temperature High inlet-air-filter differential pressure High level onseparaton High lube-oil-filter differential pressure High seal-oil-filter differential pressure High thnrst-bearing drain temperature High or low lube-oil temperature High orlow lube-oil reservoir level High or l o w seal-oil pressure High or low seal-oil tempenuure High or low seal-oil reservoir level Low coolant flow to cornprtbsor jacket Low buffer-gas flow Low lube-oil pressure

down switches. Additional instrumentation shallbe specified on the data sheet. 5.4.4.2 Alarm and Trip Devices O

5.4.4.2.1 Thepurchaserwillspecifywhetherindividual are transmitters or switches. alarm and trip devices Note: A transmitter is an instrument that sends the value of the measured variable signal to a remote end device, whichtakes apprupnate action (such as alatm relay, display, process control computer).

5.4.4.2.2 Each alarm deviceandeachshutdowndevice shall be furnished in a separate housing located to facilitate inspectionandmaintenance.Whereswitchesarespecified, they shall be hermetically sealed, single-pole, double-throw 5 amperes at 120 volts switches with a minimum capacity of ac andampereat 120 volts dc. shall be used.Mercury switches shallnot be used. 5.4.4.2.3 Pressuresensingelementsshall be of AISI StandardType 300 stainless steel, unless other material is required for compatibility with process fluid. Low-pressure alarms, which areactivated by fallingpressure,shall be equipped with a valved bleed or vent connection to allow controlled depressurizing so that the operator can note the


alarm set pressure on the associated pressure gauge. Highpressure alarms, which are activated by rising pressure, shall be equipped with valved test connections so that a portable test pump canbe used to raise the pressure. 5.5 PIPING 5.5.1 General 5.5.1.1 Pipingdesignandtfabrication,examination, and inspection shallbe in accordance withMI Standard 614, except minimum requirements for piping materials be shall in accordance with5.5.1.2 and Table 4.

5.5.12 Auxiliarysystemsaredefined that arein the following services:

as pipingsystems

a. Group1 1. Sealing fluid. 2. Gland and flushing fluid. 3. Recirculation fluid. 4. Balance gas. 5. Buffer gas. 6. Drains and vents. b. Group II: l . Sealing steam. 2. Steam injection. 3. Water injection. 4. Instrument and controlair. 5. Drains and vents. c. GrouplII: l. Cooling water. 2. Liquid wash. 3. Drains and vents. d. Group IV 1. Lubricating oil. 2. Control oil. 3. Seal oil. 4. Drains and vents. Auxiliary systems shall comply with the requirements of Table 4. Note: Casing connectionsare discussed in4.3.

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Table 3"Conditions Requiring Alarms and Shutdowns

29

5.5.1.3 Pipingsystemsfurnished bythe vendorshall be fabricated, installed in the shop, and properly ed. Bolt holes for flanged connections shall straddle horizontal and vertical centerlinesof the flange.

5.5.2OilPiping 5.5.2.1 Provisionsshall be madeforbyingthe bearings (and sealsif applicable) of equipment during oil system flushing operations.


S T D = A P I / P E T R O S T D bLS-ENGL I 9 9 7 H 0732290 05b7350 b 7 1 30

m

API STANDARD 619

I

I

--``,,,,,``,,``,`,,`````,,```,-`-`,,`,,`,`,,`---

'o



STD-API/PETRO STD bL7-ENGL L797

ROTARYTYPEPosmvE DISPLACEMENT COMPRESSORS

5.5.3

m

0732290 0567353 508

m

FOR PETROLEUM, CHEMICAL, AND GAS INDUSTRY SERVICES

31

Instrument Piping

bundles tube without the removal allow arranged oftodismantling piping or compressor components. Water shall be Connections on equipment and piping for pressure on the tube side. instruments and test points shall conform to M I Standard 5.6.5 Fixed-tube-sheetexchangersshallhaveinspection 614. Beyondtheinitial 3/,-inch isolatingvalve, NPS V 2 openings into their gas ages. Rupture disks on the shell piping, valves, and fittings maybe used. Where convenient, a side (to protect in case of tube failure) shall be used only commonconnectionmaybeusedforremotelymounted when specifically approved by the purchaser. instruments that measure the same pressure. Separate secondary'/,-inchisolatingvalvesarerequiredforeach 5.6.6 When air coolers are specified, they shall be in accorinstrument on a common connection. Where a pressure gauge dance withAPI Standard 661. is to be used for testing pressure alarm or shutdown switches, common connections are required for the pressure gauge and 5.6.7 Unless otherwise specified, air-cooled heat exchangswitches. ersused forintercoolersshallhaveautomatictemperature control. This control may be accomplished by means of louvers, variable speed fans, variable pitch fans, by valves, 5.5.4ProcessPiping or any combination of these. Proposed control systems shall O 5.5.4.1 The extent of and requirements for process piping be approved by the purchaser. to be supplied by the vendor willbe specified. 5.6.8 Unlessotherwisespecified,doublepipeintercoolers 5.5.42 Piping design and t fabrication, examination, and aftercoolers may be A finned double-pipe and inspection shall be in accordance ASME with B31.3. design may be furnished only when specifically approved by ~.

5.5.4.3 Whenspecified,thevendorshallreviewallpiping,thepurchaser. appurtenances (pulsation suppression devices, 5.6.9 Intercoolers shall be either machine-mounted or sep aftercoolers,separators,knockoutdrums, air intakefilters, arately mounted, as specified. and expansion ts) and vessels immediately upstream or downstream of the equipment and s. The purchaser O 5.6.10 Materials of construction shall be those specified on of this thedatasheets. and the vendorshallmutuallyagreeonthescope review. 5.6.11 Whencondensateseparationandcollectionfacilities are furnished by the vendor, they shall include: 5.5.4.4 For flooded screw compressors the interconnecting piping between the compressor discharge and the separator a. An automatic drain trap with manual by. vessel shall be sized to run no more than half-full of liquid b. An armored gauge glass with isolation valves and blowand shall be designed with a minimum slope of 40 millimedown valves on the collection pot. toward the ters per meter( V 2 inch per foot) to ensure drainage c.Separateconnectionsandlevelswitchesforhigh-level separator. alarm and trip on the collection pot. d. Collection pots sized to provide an agreed-upon holding 5.6INTERCOOLERSANDAFTERCOOLERS capacity and a 5-minute time span between high-level alarm 0 5.6.1 Whenspecified,thevendorshallfurnishawaterand trip, based on the expected normal liquid condensate rate. cooled shell-and-tube intercooler between each compression O 5.6.12 When specified, the vendor shall furnish the fabristage. cated piping between the compressor stages and the inter0 5.6.2 The purchaser will specify whether aftercoolers shall coolers and aftercoolers. Interstage piping shall conform to be furnishedby the vendor. ASME B 31.3. 0

5.6.3 Water-cooledshell-and-tubeintercoolersandaftercoolers shallbe designed and constructed in accordance with TEMA Class C or R, as specified by the purchaser on the data sheets.Intercoolers andaftercoolersshall be furnishedin accordance with Section VIII, DivisionofI the ASME Code. When TEMA Class R is specified, the heat exchanger shall also be in accordance with API Standard 660.

5.7 INTAKEAIRFILTERS 5.7.1 Unlessotherwisespecified,thevendorshallfurnish dry-type multistage high-efficiency air intake filters for air compressors taking suction from the atmosphere. High efficiency filters shall be capable of removing 97 percent of particles 1 micron or larger over the inlet capability range. The maximum clean pressure drop shall not exceed 12 millibar (5.0 inches) water gauge.

Note:Cautionshould be exercisedregarding the susceptibility of heat smctuns to pulsation-inducedvibration. exchangers and their ing

5.6.4 Unlessotherwiseapproved intercoolers and aftercoolers shall

by thepurchaser,the be constructed and

O

5.7.2 Air intake filters shall be suitable for mounting outdoors,preferablyatgrade,andshallbeprovidedwitha

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STD-APIIPETRO STD bL9-ENGL L997 m 0732270 05b7352 L(4q m 32

API STANDARD 619

weatherhood or louvers.Forplantlocationssubject to unusual conditions, such as sandstorms, the inlet to the filter may be elevated some distance above the compressor.

be considered, but full details of the proposed alternative type

shall be submitted with the proposal. 0

5.8.6 Whenspecified,thepulsationsuppressor/silencer vendor shall supply detailed drawingsto permit an independent study of the acoustical characteristics of the pulsation suppressor/silencerstogether with the purchaser’spiping system.

0

5.8.7 Theminimumcorrosionallowanceforcarbonsteel shells shall be 3 millimeters ( V 8 inch). Where corrosive gases require the useof materials otherthan carbon steel, the material and any required corrosion allowance shall be specified bythepurchaser.Thepurchasershallspecifyonthedata sheet the corrosion allowance for carbon steel or noncarbon steel material for the specified gas to be compressed. The thickness for noncarbon steel shell material shallbe equal to or greater than the thickness required for carbon steel including the carbon steel corrosion allowance. Intemals shall have a minimum thickness of 6 millieters (V4 inch).

5.7.3 Each filter shall be provided with a differential pressure indicator and switch. 5.7.4 Filters shall be designed such that the first-stage (prefilter) elements may be changed while the unit is operating. Note: It should be recognized that many configurations andm g e m e n t s are available. Where specific filter features are desired, these wiU be in the purchaser’s inquiryspecificationsor data sheets.

5.7.5 Unlessotherwisespecified,inorganiczincorhotdipped galvanized coatingis required for the filter frame and inlet piping. 5.8PULSATIONSUPPRESSORWSILENCERS DRY SCREW COMPRESSORS

FOR

5.8.1 Unlessotherwisespecified,inletandexhaustpulsation suppressordsilencers for each casing shall be supplied by 0 5.8.8 Pulsation suppressordsilencers shall be designed and be the compressor manufacturer. Their primary function shall fabricated in accordance with SectionW,Division 1, of the to provide the maximum practical reduction of pulsations in ASME code and shall be suitable for not less than the specithe frequency range of audible sound without exceeding the fied relief valve setting. pressure drop limit specified 5.8.2. in 5.8.9 All welds shall be continuous full penetration. 5.8.2 Unlessotherwiseagreedupon,thepressure drop through each pulsation suppressor/silencer shall not exceed 1 5.8.10 A 20 millimeter (Y,-inch) pressure test connection shall be provided at each pulsation suppressor/silencer inlet percent of the absolute pressure at the pulsation suppressor/ and outlet nozzle.A 25 millimeter (1 inch) minimum external silencer inlet. drainconnectionshall be providedforeachcompartment 5.8.3 The peak-to-peak pulsation levels on the process pip- where liquids could collect while the compressor is in ser2 ing sideof the inlet and discharge silencers shall not exceed vice. Where individual compartment drains are impracticable percent of the mean lineabsolute pressure or the value calcu- andbulkheadsextendtothevesselwall,circular-notched is smaller: lated from the following formula, whichever openings in the bulkheads may be used with the purchaser’s approval. The arrangement of intemals shall ensure that liqIn SI units, uids will flow to drain connections under all operating condiP,, = 28.6 / P1l3 tions. The effect of drain openings on silencer performance shall be considered. In U.S. Customary units, 5.8.11 Unless otherwise specified, the inlet nozzle of inlet P l , = 1s / P l ß pulsation suppressor/silencerand the discharge nozzleof disWhere: charge pulsation suppressor/silencer shall be provided with P , , = maximum allowable peak-to-peak pulsation two flanged 25 millimeter (I-inch) connectionslocated to expressed as a percentage of the mean line-side permit, without interference, the purchaser’s installation of absolute pressure. dialthermometersandthennowells for high-temperature P = mean line-si&pressure,inkilopascalsabsolute alarm or shutdown elements. (poundsper square inch absolute). 5.8.12 Connections40millimeters (1 inches)andsmaller 5.8.4 Pulsation suppressordsilencers shallbe oriented with shall be gusseted intwo planes to avoid breakagedue to pulsarespect to the compressor flanges as mutually agreed by the tion-induced vibration. purchaser and vendor. 5.8.13 Unless otherwise specified by the purchaser all main Note: Maximum silencer efficiency results from mounting the pulsation SUP be flanged. connections to pulsation suppressordsilencers shall prssors/silencersdirealy on the compressor flanges. Fad-type flanged inspection openings, 150-millimeter (Ginch), complete with blind flanges and gaskets shall be provided for 5.8.5 Pulsationsuppressorsandsilencersshall be ofthe externally lagged multichamber type. Alternative types may access to each compartment.100 millimeter (4-inch) pad-type --``,,,,,``,,``,`,,`````,,```,-`-`,,`,,`,`,,`---



STD.API/PETRO

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L777 I0732270 05b7353 380

ROTARYTYPEPOSITIVE DISPUCEMENTCOMPRESSORS FOR PETROLEUM,

O

m

CHEMICAL, AND GAS INDUSTRY SERVICES

33

flanged inspection openings may be provided on vessels less than 500 millimeters (16 inches) in diameter.

meet to coordinate manufacturing hold points and inspectors’ visits.

5.8.14 Side-enteringmainnozzleconnectionsshallbe reinforced with pad-type metal providing a metal area equal to the cutaway area (excluding the thickness of any metal present in the connection wall).

6.1.5.2 Witnessed means that a hold shallbe applied to the production schedule and that the inspection or test shall be carried out with the purchaser or his representative in attenthis dance.Formechanicalrunningorperformancetests, requires written notificationof a successful preliminary test.

5.8.15 Constructionshallbesuitableforserviceinan unprotectedoutdoorlocatiòn.Whenspecified,insulation clips shall be provided. All connections and nameplates shall be arranged to clear the insulation.

6.15.3 Observed means that the purchaser shallbe notified of the timing of the inspection or test; however, the inspection or test shall be performed as scheduled, and if the purchaser or his representative is not present, the vendor shall proceed to the next step. (The purchaser should expect be into the factory longer than for a witnessed test.)

5.9 SPECIALTOOLS 5.9.1 When special tools and fixtures are required to disasbe included semble, assemble,or maintain the unit, they shall in the quotation and furnishedas part of the initial supplyof the machine. For multiple-unit installations, the requirements for quantities of special tools and fixtures shall be mutually simiagreed upon by the purchaser and the vendor. These or lar special tools shall be used during shop assembly and posttest disassembly of the equipment. 5.9.2 When special tools are provided, they shall be packaged in a separate, rugged metal box or boxes and shall be marked special foolsfor (fughtemnumber). Each tool shall be stamped or tagged to indicate its intended use.

6.1.6 Equipment for specified inspection and tests shall be provided by the vendor. 6.1.7 Thepurchaser’srepresentative,shallhaveaccessto the vendor’s quality program for review. 6.2 INSPECTION 6.2.1 General

m 6.2.1.1 The vendor shall keep the following data available for at least 20 years for examination or reproduction by the purchaser or his representative upon request:

a. Necessarycertification of materials,such as mill test reports. b. Test data to that the requirements of the specification have been met. 6.1 GENERAL c. Results of documentedtestsandinspectionsincluding 6.1.1 The purchaser will specify the extent of participation fully identified recordsof all heat treatment andradi0,Oraphy. in the inspection and testing and the amount of advance noti- d. When specified, final-assembly, maintenance, and running fication required. clearances.

6 Inspection,Testing,and Preparation for Shipment

6.1.2 Whenspecified,thepurchaser’srepresentative,the vendor’s representative,or both shall indicate compliance in accordance with the inspector’s checklist (see Appendix by I) initialing, dating, and submitting the completed checklist to the purchaser before shipment.

6.2.1 2 Pressure-containing parts shall not be painted until the specified inspectionof the partsis completed. O

6.2.1.3 In addition to the requirementsof 4.1 1.4.1, the purchaser may specify the following:

6.1.3 After advance notification of the vendor by the purchaser, the purchaser’s representative shall have entry to all vendor and subvendor plants where manufacturing, testing, or inspection of the equipment is in progress.

a. Parts thatshallbesubjectedtosurfaceandsubsurface examination. b. Thetypeofexaminationrequired,suchasmagnetiarticle, liquid penetrant, radiographic,and ultrasonic examination.

6.1.4 The vendor shall notify subvendors of the purchaser’s inspection and testing requirements.

6.2.2MaterialInspection

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0

O 6.2.2.1 General 6.1.5 The vendor shall provide sufficient advance notice to the purchaser before conducting any inspection or test that the When radiographic, ultrasonic, magnetic particle, or liquid penetrant inspectionof welds or materials is required or speurchaser has specified to be witnessed or observed. ified, the criteria in 6.2.2.2 through 6.2.2.5 shall apply unless 6.1.5.1 When shop inspection and testing have been speciother criteria are specified by the purchaser. Cast iron may fiedby the purchaser,thepurchaserandthevendorshall onlybeinspected in accordancewith6.2.2.4and6.2.2.5



API STANDARD 619

34

6.2.2.5LiquidPenetrantInspection

Welds, cast steel, and wrought material may be inspected in accordance with 6.2.2.2 through 6.2.2.5.

6.2.2.5.1 Liquid penetrant inspection shall be in accordance with Section V, Article 6, of the ASME Code.

Note: Regardless of the generalized limits in 6.2.2, it shall be the vendor’s responsibility to review the design limits of the equipment in the event that more stringentrequirements are necessary. Defects that e x d the limits imposed in 6.2.2 shall be removed to meet the quality staudards cited, as determined bythe inspection method specified.

6.2.2.5.2 The acceptance standard used for welded fabrications shallbe SectionVIII, Division 1,Appendix 8 and Section V,Article 24, of the ASME Code. The acceptance Division 1, standard used for castings shall be Section W, Appendix 7, of the ASME Code.

Note: Care should be taken in theuse of acceptance criteria for iron castings, which shouldbe mutually determined betweenthe vendor and the purchaser. be applicable. Criteria developedfor other materials may not

6.2.3MechanicalInspection

6.2.2.2 Radiography

6.2.3.1 During assembly of the equipment before testing, each component (including cast-in ages of these components)andallpipingandappurtenancesshall be cleaned chemically or by another appropriate methodto remove foreign materials, corrosion products, and mill scale.

6.2.2.2.1 Radiography shall be in accordance with ASTM E 94 and AST” E 142. 6.2.2.2.2 The acceptance standard used for welded fabrications shall be Section W I , Division 1, W - 5 1 ,(100 UW-52 (spot) of the ASMECode.The percent)and acceptance standard used for castings shall be Section VID, Division 1, Appendix 7, of the ASME Code.

6.2.3.2 A11 furnished portions of the oil system shall meet the cleanliness requirements inM I Standard 614. O

6.2.3.3 Whenspecified,the purchaser may inspect for cleanliness the equipment and all piping and appurtenances furnished by or through the vendor before heads are welded to vessels, openings in vessels or exchangers are closed, or piping is finally assembled.

O

6.2.3.4 Whenspecified, the hardness of parts, welds, and as beingwithinthe heat-affectedzonesshallbeverified allowablevaluesbytestingoftheparts,welds, or heat affected zones. The method, extent, documentation, and witnessing of the testing shall be mutually agreed upon by the purchaser and the vendor.

6.2.2.3UltrasonicInspection 6.2.2.3.1 Ultrasonic inspection shall bein accordance with Section V, Articles 5 and 23, of the ASME Code. 6.2.2.3.2 The acceptance standard used for welded fabrications shall be Section VIII, Division 1, Appendix 12, of the ASME Code. The acceptancestandard for steel castings shallbe Section VIII, Division 1, Appendix 7, of the ASME Code. The acceptance standard used for steel forgings shall be ASTM A 388.

6.3 TESTING 6.2.2.4MagnetiarticleInspection

6.3.1 General

6.2.2.4.1 Bothwetand dry methods of magnetiarticle E 709. inspection shallbe in accordance with ASTM

6.3.1.1 Equipment shall be tested in accordance with 6.3.2 and 6.3.3. Other tests thatmay be specified by the purchaser are describedin 6.3.4.

6.2.2.4.2 The acceptance standard used for welded fabrications shallbe SectionVIII, Division 1, Appendix6 and of Section V, Article 25 of the ASME Code. The acceptability defects in castings shall be based on a comparison with the photographs in ASTM E 125. For each type of defect, the limits specifiedin degree ofseverityshallnotexceedthe Table 5.

1

6.3.1.3 The vendor shall notify the purchaser not less than 5 working days before the date the equipment will be ready is rescheduled, the vendor shall for testing.Ifthetesting notify the purchaser not less than 5 working days before the new test date.

2 2

6.3.2 HydrostaticTests

Table 5”aximum Severity of Defects in Castings Type 1

Defect L i n a discontinuities

II

Shrinkage

III

Inclusions Chills and chaplets Porosity Welds

IV

V

VI

6.3.1.2 At least six weeks before the first scheduled running test, the vendor shall submit to the purchaser, for his review and comment, detailed proceduresfor the mechanical running test and all specified running optional tests (6.3.4), including acceptance criteriafor all monitored parameters.

Maximum severity Lwel

1 1 1

parts (including auxiliaries) 6.3.2.1 Pressure-containing shall be tested hydrostatically with liquid, at a minimum of

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STD.API/PETRO STD bL7-ENGL

L777

m

0732270 05b7355 L53

ROTARYTYPEPOSITIVE DISPLACEMENT COMPRESSORS FOR PETROLEUM,

CHEMICAL, AND

m


35

1 times the maximum allowable working pressure but not less than gauge pressure of 1.5 bar(20 pounds per square inch gauge). The test liquid shall be at a higher temperature than the nil-ductility transition temperature of the material being tested.

cleanliness requirementsof API Standard 614 before any test is started.

Note: For gas-pressure-containing parts, the hydrostatic test is a test of the mechanical integrity of the component andis not a valid leakage test.

6.3.3.1.5 All ts andconnectionsshallbecheckedfor tightness, and any leaks shall be corrected.

6.3.3.1.4 Bearingsusedinoil shall be prelubricated.

mist lubricationsystems

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6.3.2.2 If the part tested is to operate at a temperature at 6.3.3.1.6 All warning, protective, and control devices used which the strength of a material is below the strength of that during the test shall be checked, and adjustments shall be material at room temperature, the hydrostatic test pressure made as required. shall be multiplied by a factor obtainedby dividing the allow6.3.3.1.7 Testing with the contract coupling is preferred. If able working stress for the material at room temperature by that at the operating temperature. The stress values used shall this is notpractical,themechanicalrunningtestshallbe performed with coupling-hub adapters in place, resulting in conform to those givenin ASME B31.3 for pipingor in Secmoments equal (&lopercent) to the moment of the contract tion VIII, Division 1, of the ASME Code for vessels. The of the coupling spacer. When pressure thus obtained shall then be the minimum pressure atcoupling hub plus one-half that all testing is completed, the idling adapters shall be furnished which the hydrostatic test shall be performed. data The sheets to the purchaseras part of the special tools. shall list actual hydrostatic test pressures. 6.3.2.3 Where applicable, tests shall be in accordance with theASMECode.Intheeventthatadiscrepancyexists between the code test pressure and the test pressure in this standard, the higher pressure shall govern. 6.3.2.4 The chloride content of liquids used to test austen50 parts per militic stainless steel materials shall not exceed as a result of lion. To preventdepositionofchlorides evaporative drying, all residual liquid shallbe removed from tested parts at the conclusion of the test.

6.3.3.1.8 purchased All vibration probes, cables, oscillator-demodulators, and accelerometers shall be in use during the test. If vibration probes are not furnished by the are not equipmentvendoror ifthepurchasedprobes compatible with shop readout facilities, then shop probes and readouts that meet the accuracy requirements of API Standard 670 shall be used.

6.3.3.1.9 Shoptestfacilitiesshallincludeinstrumentation with the capability of continuously monitoring and plotting revolutions per minute, peak-to-peak displacement, and phase 6.3.2.5 Tests shall be maintained for a sufficient period of angle(x-y-y3.Presentation of vibrationdisplacementand time to permit complete examination of parts under pressure.phase marker shallalso be by oscilloscope. Thehydrostatictestshallbeconsideredsatisfactory when O The vibration characteristics determined by the neither leaks nor seepage through the casing or casing t6.3.3.1.1 is and 6.3.3.1.9 use of the instrumentation specified 6.3.3.1.8 in observed for a minimum of 30 minutes. Large, heavy castings shall serve as the basis for acceptance or rejection of the may require a longer testing period to be agreed upon by the machine (see 4.7.3.4). purchaser and the vendor. 6.3.3.1.1 1 When seismic test values are specified, vibration data (minimumandmaximumvalues)shallbe recorded and located (clock angle) in a radial plane transverse 6.3.3.1 Therequirements of 6.3.3.1.1 through 6.3.3.1.11 to each bearing centerline (if possible), using shop shall be met before the mechanical running test is performed. instrumentation during the test. 6.3.3.1.1 The contract shaft sealsandbearingsshall be 6.3.3.2 The mechanical running test shall be run at maxiused in the machine for the mechanical running test. mum continuous speed for a minimum of four hours. Variable speed equipment shall alsobe tested as specified in 6.3.3.2.1 6.3.3.1.2 Alloilpressures,viscosities,andtemperatures shall be within the range of operating values recommended in and 6.3.3.2.2. the vendor’s operating instructions for the specific unit being 6.3.3.2.1 The equipment shall be operated at speed tested.Forpressurelubricationsystems,oilflowratesfor increments of approximately 10 percentfromzero to the each bearing housing shall be measured. maximum continuous speed until bearings, lube-oil temperatures, and shaft vibrations have stabilized. 6.3.3.1.3 Teststandoilfiltrationshallbe 25 microns absolute at beta ratio 75 or better (see 4.10.5.5). Oil system Note: The possibilityof damage may prevent sustained operation belowmincomponents downstream of the filters shall meet the imum allowablespeed.

6.3.3MechanicalRunning


Test


S T D = A P I / P E T R O S T D b17-ENGL 1717

API STANDARD 619

final shop testsshallberun corrections are made.

6.3.322 The speed shall be increased to 110 percentof the maximum continuous speed, and the equipment shallbe run for a minimum of 15 minutes.

6.3.3.4.3 When spare rotors are ordered to permit concurrent manufacture, each spare rotor set shall also be given a mechanicalrunningtest inaccordancewiththe requirements of this standard.

6.3.3.3 Therequirementsof6.3.3.3.1through6.3.3.3.5 shall be met during the mechanical running test. 6.3.3.3.1 During the mechanical running test, the mechanical operation of all equipment being tested and the operation of the test instrumentation shall be satisfactory. The measured unfiltered vibration shall not exceed the limits of 4.7.3.4 and shall be recorded throughout the operatingspeed range. 6.3.3.3.2 Whiletheequipment is operating at maximum continuous speed and at other speeds that mayhavebeen be madefor specifiedinthetestagenda,sweepsshall vibration amplitudes at frequencies other than synchronous. As a minimum, these sweeps shall cover a frequency range from 0.25 to 8 times the maximum continuous speedbut not more than 1,500 hertz (90,OOO cycles per minute).If the amplitude of any discrete, nonsynchronous vibration exceeds 20 percentof the allowable vibrationas defined in 4.7.3.4, the purchaser and the vendor shall mutually agree on requirements .for any additional testing and on the equipment’s suitability for shipment. O

O

O

after thesereplacementsor

0

6.3.3.4.4 After the mechanical running test is completed, each completely assembled compressor casing intended for toxic,hazardous,flammable,orhydrogen-richservice, or when specified for other gases, shallbe tested as specified in 6.3.3.4.4.1 through 6.3.3.4.4.3 6.3.3.4.4.1 The casing(includingend seals) shall be pressurizedwithaninertgas to themaximumsealing pressureorthemaximum seal designpressure, as agreed upon by the purchaser and the vendor; held at this pressure for a minimum of30 minutes; and subjectedto a soapbubble test or another approved test to check for gas leaks. The test shall be considered satisfactory when no casing or casing t leaks are observed. 6.3.3.4.4.2 The casing (with or without endseals installed) shall be pressurized to the rated discharge pressure, held at this pressure for a minimum of 30 minutes, and subjected ato soapbubble test or another approved test to check for gas leaks.Thetestshallbeconsideredsatisfactorywhen no casing or casingt leaks are observed.

6.3.3.3.3 Plotsshowingsynchronousvibrationamplitude and phase angle versus speed for deceleration shallbe made before and after the Chour run. Plots shall be made of both the filtered (one per revolution) and the unfiltered vibration 6.3.3.4.43 The requirements of 6.3.3.4.4.1 and 6.3.3.4.4.2 levels, when specified. These data shall also be furnished in may necessitate two separate tests. polar form. The speed range covered by these plots shall be 400rpm to the maximum continuousspeed or to the specified o 6.3.4 Optionallests driver trip speed. When specified,the shop tests described in 6.3.4.1 through 6.3.3.3.4 When specified, tape recordings shallbe made of 6.3.4.12 shall be performed. Test details shall be mutually all real-time vibrationdata. agreed upon by the purchaser and the vendor. 6.3.3.3.5 When specified, lube-oil and seal-oil inlet pressures and temperatures shallbe varied through the range o 6.3.4.1Performance Test permitted in the compressor operating manual.This shall be The machine shall be tested in accordance with ASME done during the 4hour test. Power Test Code 9. The power at the normal operating point 6.3.3.4 Unlessotherwisespecified,therequirements of shall not exceed104 percent of the quoted value with no neg6.3.3.4.1 through 6.3.3.4.4 shall be met after the mechanical ative tolerance on capacity. running testis completed. 6.3.3.4.1 Hydradynamic bearings shall be removed, inspected, and reassembled. liming gears areas shall be visually inspected, The results of the inspections shall be recorded. 6.3.3.42 If replacementormodificationofbearingsor seals or dismantling of the case to replace or modify other parts is required to correctmechanicalorperformance deficiencies, the initial test will not be acceptable, and the


o 6.3.4.2Complete-Unit

Test

Such componentsas compressom, gears, drivers, and auxiliaries that make up a complete unit shall be tested together during the mechanical running test. When specified, torsional vibration measurements shall be made and documented to the vendor’s analysis. The complete-unit test shall be performed in place of or in addition to separate tests of individual components specifiedby the purchaser. Document provided by IHS Licensee=BP Amoco/5928366101, =, 03/18/2003 01:22:58 MST Questions or comments about this message: please call the Document Policy Management Group at 1-800-451-1584.

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36

0732270 0 5 b 7 3 5 b 0 9 T H

STD.API/PETRO S T D bL7-ENGL L997 m 0732290 05b7357 T 2 b

ROTARYTYPEPOSITIVE DISPLACEMENT COMPRESSORS FOR PETROLEUM, CHEMICAL, AND GAS INDUSTRY

o 6.3.4.3TandemTest

0

Bodies arranged for tandem drive shallbe tested as a unit during the mechanical running test by using the shop driver and oil system. 0

6.3.4.4GearTest

6.3.4.5HeliumTest

6.3.4.6Sound-LevelTest Unless otherwise specified, the sound-power test shall be performed in accordance with IS0 3746. When specified, a more rigorous test shall be performed perI S 0 3744. Note: Refer toIS0 3740 for guidance on whichof the two standards is more appropriate for the given application.

O

6.3.4.7Auxiliary-EquipmentTest Auxiliary equipment such as oil systems, gears, and control systems shall be tested in the vendor's shop. Details of the auxiliary-equipment tests shall be developed tly by the purchaser and the vendor.

O

6.3.4.8Post-TestInspection

6.3.4.1 1 Governor-Response and EmergencyOverspeed-Tripsystems Test

6.3.4.11.2 The response time of the emergency overspeed trip system shallbe recorded to confirm compliance with the requirements of thedriverandthe NEMA class ofthe specified governor.

The compressor casing shall be tested gas for leakage with o helium at the maximum allowable working pressure. The test shall be conducted with the casing submerged in water. The be maintained maximumallowableworkingpressureshall for a minimumof 30 minutes, with no bubbles permitted. As an alternative, a nonsubmergedsoapbubble test may be performed if approved by the purchaser. 0

37

6.3.4.1 1.1 The response time of speed-governing systems shall be recorded on astrip chart to confirm compliance with the requirements for maximum speed rise of the driver and the N E M A 1 3 class of the specified governor.

The gear shall be tested with the machine unit during the mechanical running test. 0

SERVICES

6.3.4.12Spare-PartsTest Spare parts such as couplings, gears, bearings, and seals shall be tested as specified. 6.3.5HeatRun 6.3.5.1 For dry screw compressors a heat run shall be performed at the maximum allowable speed, with the discharge temperature stabilized at the specified maximum operating 30 minutes. temperature plus11"C (20°F)for a minimum of Note: On machines with water-flush seals and high leakage rates it m a y not be possible to achieve the heatrun temperature.

6.3.5.2 After the heat run, a check shall be performed with the compressor operating on air at the highest test pressure practical at normal speed. The capacity, the power required, and the temperature of the bearings where instrumentationis included shallbe noted. 6.3.5.3 For compressors using oil-buffered seal units, when any test run with air will involve a discharge temperature above 120°C (250°F), the test shall be conducted using a modified procedureto eliminate the oil-air high-temperature hazard. The modified test procedure shallbe agreed upon by the purchaser and the vendor.

0

6.3.4.9

Full-PressurdFull-LoacUFull-SpeedTest

Thedetails of the full-pressure/full-loadfull-speedtest shall be developed tly by the purchaser and the vendor. This test maybe substituted forthe mechanical running test.

o 6.3.4.1 O Inspectionof HubEhaft Fit for Hydraulically Mounted Couplings Aftertherunningtests,theshrink fit ofhydraulically be inspected by comparing hublshaft mounted couplings shall match marks to ensure that the coupling hubhas not moved on the shaft during the tests. COPYRIGHT 2003; American Petroleum Institute

6.4PREPARATION

FOR SHIPMENT

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When specified, the compressor, the gear, and the driver shall be dismantled, inspected, and reassembled after satisfac- 6.3.6Test Data Immediately upon completion of each witnessed mechanitorycompletionofthemechanicalrunningtest. The purcal and perFormance test, copies of the data logged shall be chaser will specify whether the gas test required by 6.3.3.4.4 shall be performed before or after the post-test inspection. given to the witness.

6.4.1 Equipment shall be suitably prepared for the type of shipment specified, including blocking oftherotorswhen be identified by means of cornecessary. Blocked rotors shall rosion-resistant tags attached with stainless steel wire. The preparation shall make the equipment suitable for 6 months of outdoor storage from the timeof shipment, with no disassembly required before operation, except for inspection of bearings and seals. If storage for a longer period is contemI3NationalElectricalManufacturers Suite 1847, Rosslyn, Virginia.

Association,1300North17thStreet,


STANDARD

API

619

6.4.3.10 The equipment shall be identified with item and serial numbers. Material shipped separately shall be identified with securely affixed, corrosion-resistant metal tags indicating the item and serial number of the equipment for which it is intended. In addition, crated equipment shall be shipped with duplicate packinglists,one inside and one onthe outside of the shipping container.

plated, the purchaser will consult with the vendor regarding recommended procedures to be followed. 6.4.2 The vendorshallprovidethepurchaserwiththe instructions necessary to preserve the integrityof the storage preparation after the equipment arrives at the job site and before start-up. 6.4.3 The equipment shall be prepared for shipment after alltestingandinspectionshavebeencompletedandthe equipment has been released by the purchaser. The preparation shall include that specified in6.4.3.1 through 6.4.3.12.

O

6.4.3.1 Exterior surfaces, except for machinedsurfaces, shall be givenat least one coatof the manufacturer's standard paint. The paint shall not contain lead or chromates. 6.4.3.2 Exterior machined surfaces exceptfor cmosionresistant material shall be coated with a suitable rust preventive. 6.4.3.3 The interior of the equipment shall be clean; free from scale, welding spatter, and foreign objects; and sprayed be removed or flushed with a suitable rust preventive that can with solvent. The rust preventive shall be appliedto all openis slow-rolled. ings while the machine

6.4.3.12 Exposed shafts andshaftcouplingsshall be wrapped with waterproof, moldable waxed cloth or volarilecokoiion-inhibitor paper. The seams shall be sealed with oil proof adhesive tape.

6.4.3.4 Internal areas of bearing housings, and carbon steel oil system auxiliary equipment such as reservoirs, vessels, and piping shallbe coated witha suitable oil-soluble rust preventive.

6.4.4 Auxiliarypipingconnectionsfurnished onthepurchasedequipmentshall be impressionstamped or permanently tagged to agree with the vendor's connection table or general arrangement drawing. Service and connection designations shallbe indicated.

CACl77ON: Any paint exposedto lubricants must be oil resistant. When synthetic lubricants are used, special precautions must be takento assure compatibility with the paint.

6.4.5 Bearing assemblies shall be fully protected from the crysentry of moisture anddirt.If volatile corrosion inhibitor tals in bags are installed in large cavities to absorb moisture, the bags must be attached in an accessible area for ease of removal. Where applicable, bags shall be installed in wire cages attached to flanged covers, and bag locations shall be indicated by corrosion-resistant tags attached with stainless steel wire.

6.4.3.5 Permanentinternalcoating must be compatible with process gases, cooling media, and lubricants. 6.4.3.6 Flanged openings shallbe provided with metal closures at least 5-millimeters (V,,-inch thick), with elastomer gasketsand at least four full-diameter bolts.Forstudded openings, all nuts needed for the intended Service shall be used to secure closures. Each opening shallbe car-sealed so that the protective cover cannot be removed without the seal being broken. 6.4.3.7 Threadedopeningsshall be providedwithsteel caps or round-head steel plugs. In no case shall nonmetallic (such as plastic) capsor plugs be used. Note: These are shipping plugs; permanent plugs arc c o d in 4.3.9.

6.4.3.8 Openings that have been beveled for welding shall be provided with closures designed to prevent entrance of moisture and foreign materials, and damage to the bevel. 6.4.3.9 Lifting points and liftinglugs shall be clearly identified on the equipment or equipment package. The recommended lifting arrangementshall be identifiedonboxed wuipment. "


6.4.3.11 When spare rotors are purchased, the rotors shall be prepared for unheated indoor storage for a period of at least 3 years. The rotors shall be treated witha rust preventive and shall be housed in a vapor-banier envelope witha slowrelease volatile corrosion inhibitor. The rotors shall be crated for domestic or export shipment, as specified. A purchaserapprovedresilientmaterial3.0-millimeters('/,-inchthick) [nottetrafluoroethylene (TFE) or polytetrduoroethylene (F'TFE)] shall be used between the rotor and the cradle at the areas.When ing the rotors care shall be taken as seals, bearings, and not to damage functional surfaces such probe areas.

6.4.6 One copy ofthemanufacturer'sinstallationmanual per 7.3.6.2shall be packed and shipped with the equipment. 6.4.7 Connectionson auxiliarypipingremovedfor ment shallbe matchmarked for ease of reassembly. O

ship-

6.4.8 When specified, the fit-up and assembly of machinemounted piping, intercoolers, andso forth shall be completed in the vendor'sshop prior to shipment.

7 Vendor's Data 7.1 GENERAL 7.1.1 Theinformation to befurnishedbythevendor is specified in 7.2 and 7.3. The vendor shall complete and forward (see Drawing the Vendor Requirements form Data and Document provided by IHS Licensee=BP Amoco/5928366101, =, 03/18/2003 01:22:58 MST Questions or comments about this message: please call the Document Policy Management Group at 1-800-451-1584.

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38

~~

S T D = A P I / P E T R O S T D bL7-ENGL L777 m 0732290 0 5 b 7 3 5 9 A T 7 m ROTARYTYPEPOSITIVE DISPLACEMENT CoMPRESSORS FOR PETROLEUM, CHEMICAL,

Appendix C) to the address or addresses noted on the inquiry or order. This form shall detail the schedule for transmission of drawings, curves, and data as agreed to at the time of the order, as well as the number and type of copies required by the purchaser. 7.1.2 The data shall be identified on transmittal (cover) letters and in title blocks or title pages with the following information: a. The purchaserher’s corporate name. b. The job/projectnumber. c. The equipment item number and service name. d. The inquiry or purchase order number, e.Any other identification specified in the inquiry or purchase order. f.Thevendor’sidentifyingproposalnumber,shoporder number, serial number, or other reference required to identify return correspondence completely. @

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7.1.3 When specified, a coordination meetingshall be held, preferably at the vendor’s plant, within4 to 6 weeks after the purchase commitment. Unless otherwise specified, the vendor shall prepare and distributean agenda prior tothis meeting,which, as aminimum,shallincludereviewofthe following items: a. The purchase order, scope of supply, unit responsibility, and subvendor items. b. The data sheets. c.Applicablespecificationsandpreviouslyagreed-upon exceptions. d. Schedules for transmittalof data, production, and testing. e. The quality assurance program and procedures. f. Inspection, expediting, and testing. g. Schematics and bills of materialfor auxiliary systems. h.Thephysicalorientation oftheequipment,piping,and auxiliary systems. 1. Coupling selections. j. Thrust-bearing sizing and estimated loadings. k. The rotor dynamics analysis. 1. Other technical items.


39

native designs. All correspondence shall be clearly identified in accordance with7.1.2. 7.2.2 Drawings 7.2.2.1 The drawings indicated on the Vendor Drawing and Data Requirements form (seeAppendix C) shall be included in the proposal. As a minimum, the following data shall be furnished: a. A general arrangement or outline drawing for each major skid or system,showingoveralldimensions,maintenance clearance dimensions, overall weights, erection weights, and maximum maintenance weights (indicated for each piece). The direction of rotation and the size and location of major purchaser connections shall also be indicated. b. Cross-sectional drawings showing the details of the proposed equipment. c.Schematics ofallauxiliarysystems,includinglube-oil, control,andelectricalsystems.Bills of materialshallbe included. d.Sketchesthat showmethodsof liftingtheassembled machine or machines and major components.(This information may be included on the drawings specified in itema above.) 7.2.2.2 If typical drawings, schematics, and bills of material are used, they shall be marked up to show the correct weight and dimension data and to reflect the actual equipment and scope proposed. 7.2.3TechnicalData The following data shall be included in the proposal:

a. The purchaser’s data sheets,with complete vendor’s information entered thereonand literature to fully describe details of the offering. b. The purchaser’s noise data sheet. c. The Vendor Drawing and Data Requirements form (see Appendix C), indicating the schedule according which to the vendor agrees to transmit all the data specified as part of the contract. d. A schedule for shipmentof the equipment, in weeks after receipt of the order. 7.2 PROPOSALS e. A listof major wearing components, showing interchange7.2.1 General ability with the purchaser’s other units. f. A list of spare parts recommended for start-up and normal Thevendorshallforwardtheoriginalproposalandthe maintenance purposes. specified number of copies to the addressee specified in the The inquiry documents. As a minimum, the proposal shall includeg. A list of the special tools furnished for maintenance. vendor shall identify any metric items included in the offering. the data specified in7.2.2 through 7.2.4, as well as a specific statement that the system and all its components are in strict h. A statement of any special weather protection and winteraccordance with this standard. If the system and components ization required for start-up, operation, and periods of idleare not in strict accordance, the vendor shall include a list that ness under the site conditions specified. The list shall show details and explains each deviation. The vendor shall provide the protectionto be furnished by the purchaser,as well as that details to enable the purchaser to evaluate any proposed alter-included in the vendor’s scope of supply.



STD=API/PETRO STD b17-ENGL 1 7 7 7 m 0732270 05b73b0 510 40

API STANDARD 619

i. A complete tabulation of utility requirements, as ~- such those for steam,water,electricity,air, gas, and lube oil, including the quantity (andtype) of lube oil required and the supply pressure, the heat load to be removed by the oil, and thenameplatepowerratingandoperatingpowerrequirements ofauxiliarydrivers. (Approximatedatashall be defined and clearly identified as such.) j. A description of the tests and inspection procedures for materials, as required by 4.1 1.1.3. k. A description of any special requirements specified inthe purchaser’sinquiryand as outlined in 4.10.5.4, 4.11.1.1, 4.11.1.2,and5.4.3.6.1. 1. A list of similar machines installed and operating under conditions analogousto those Specified inthe proposal. m. Any start-up, shutdown, or operating restrictions required to protect the integrity of the equipment. n. For constant speed units, the vendor shall outline the procedure that can be followedto reduce power consumption,in the event that excess pressure or flow is developed. o. Vendor shall list allrequired relief valves and clearly indicate those furnishedby the vendor. p.Forfloodedscrew compressors,thevendorshallstate retentiontime,maximumandminimumliquidlevelsand capacity in the separator vessel.

7.3.2 Drawings The drawings furnished shall contain sufficient information

so that with the drawings and the manuals specified in 7.3.6, the purchaser can properly install, operate, and maintain the ordered equipment. Drawings shall be clearly legible, shall be identified in accordance with 7.3.1.1, and shall be in accordance withANSI Y 14.2M. Asa minimum, each drawing shall C. include the details for that drawing listed in Appendix 7.3.3TechnicalData The data shall be submitted in accordance with Appendix

C and identified in accordance with 7.3.1.1. Any comments on the drawingsor revisions of specificationsthat necessitate a change in the data shall be noted by the vendor. Note: These notations will result in the purchaser’s issue of completed, corrected data sheets as part of the order specifications.

7.3.4

Progress Reports

The vendor shall submit progress reportsto the purchaser at the intervals specified on the Vendor Drawing and Data Requirements form (see Appendix C). 7.3.5 Parts

Lists and Recommended Spares

7.3.5.1 The vendor shall submit complete partslists for all equipment and accessories supplied. The lists shall include manufacturer’s unique part numbers, materials of construcThe vendor shall provide complete performance curves for tion, and deliveq times. Materials shall be identified as speciof operations, variable speed machines to encom the map fied in 4.1 1.1.2. Eachpart shall be completelyidentifiedand withany limitations indicated thereon. For constant speed shown on cross-sectional or assembly-type drawings so that equipment referto the operating point on the data sheet. of the the purchaser may determine the interchangeability Parts thathavebeenmodified partwithotherequipment. 7.3CONTRACTDATA from standard dimensions and/or finishto satisfy specific performance requirements shall be uniquely identified by part 7.3.1 General number for interchangeabilityand future duplicationpurposes. Standard purchased items shall be identifiedbythe 7.3.1.1 h e contract data to be furnished by the vendor is original manufacturer’s name and part number. specified in Appendix C. Each drawing, bill of material, and data sheet shall havea title block in its lower right-handcor7.3.52 The vendor shall indicate on the above parts lists ner that shows the date of certification, a reference toall idenwhich parts are recommended spares for startup and which tificationdataspecifiedin7.1.2, therevisionnumber and parts are recommended for nomal maintenance (see Item f of date, and the title. 7.2.3). The vendor shall forward the lists to the purchaser promptly after receipt of the reviewed drawings and in timeto 7.3.12 Thepurchaserwillpromptlyreviewthevendor’s permit order and delivery of the parts before field start-up. data when received; however, this review shall not constitute The transmittal letter shall be identified with the data specipermission to deviatefromanyrequirements intheorder fied in 7.1.2. unless specifically agreed upon in writing.After the data has been reviewed, the vendor shallfurnish certifiedcopiesin the 7.3.6 Installation, Operation, Maintenance, and quantity specified. Technical Data Manuals 7.3.1.3 A completelist of vendor data shallbeincluded 7.3.6.1 General with the first issue of the major drawings.This list shall contain titles, drawing numbers, anda schedule for transmission The vendor shall provide sufficient written instructions and C). of all the data the vendor will furnish (see Appendix to correctly a listofalldrawingstoenablethepurchaser --``,,,,,``,,``,`,,`````,,```,-`-`,,`,,`,`,,`---

7.2.4 Curves



I

STD-APIIPETRO STD bLS-ENGL L997 m 0732290 0 5 b 7 3 b l q57

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ROTARYTYPEPOSITIVE DISPLACEMENT CoMPRESSORS FOR PETROLEUM, CHEMICAL,

install, operate, and maintain all of the equipment ordered. This information shall be compiled in a manual or manuals with a cover sheet that contains all reference-identifying data specified in 7.1.2, an index sheet that contains section titles, and a complete list of referenced and enclosed drawings by title and drawing number. The manual shall be prepared for the specified installation; a typical manual is not acceptable. 7.3.6.2InstallationManual

m


41

sketches that show the location of the center of gravity and rigging provisionsto permit the removal of the top half of the casings, rotors, and any subassemblies that weigh more than 135 kilograms (300pounds). 7.3.6.3OperatingandMaintenanceManual The manualcontainingoperatingandmaintenancedata shall be forwarded at timeof shipment. This manual shall include a section that provides special instructions for operation at specified extreme environmental conditions, such as high or low temperatures. As a minimum, the manual shall also include all of the data listed in Appendix C.

Any information required for proper installation shall be compiled in a manual that is separatefrom the operating and maintenance instructions.This manual shallbe forwarded at a time that is mutually agreed upon in the order but not later thanshipment of themachine. The manualshallcontain e 7.3.6.4TechnicalDataManual information such as special alignment and grouting proceWhen specified, the vendor shall provide a technical data dures,utilityspecifications(includingquantities),andall other installation design data, including the drawings and datamanual within 30 days of completion of shop testing (see Appendix C for detailed requirements). specified in 7.2.2 and 7.2.3. The manual shall also include



S T D - A P I / P E T R O STD bL’f-ENGl- 2777

m

0732290 0 5 b 7 3 b 2 3 9 3

m

APPENDIX A-TYPICAL DATA SHEETS (NORMATIVE)

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43 Document provided by IHS Licensee=BP Amoco/5928366101, =, 03/18/2003 01:22:58 MST Questions or comments about this message: please call the Document Policy Management Group at 1-800-451-1584.

S T D - A P I / P E T R O STD bL7-ENGL L777 II 0732290 05b73b3 2 2 T

ITEM NO.

JOB NO.

ROTARY-TYPE POSITIVE DISPLACEMENT COMPRESSOR SHEET DATA SI UNITS

ORDER

PURCHASE

DATE

NO.

REQUISITION NO. INQUIRY NO. PAGE

1

OF

9

BY

A U DATA ON PER UUm BASIS

0 COMPRESSOR INLET FIANGE 0SILENC 6 7 8 9

I

0 PRESSURE (BAR) @Pa-abo) 0 TEMPERATURE (%) 0 RELATlVEHUMIDITY (u 0 MOLECULAR WEIGHT (M)

I

I

I

l

0 n C P / c v ( K t ) OR ( b v d !1

Y

0COMPRESSIBILITY (2,)OR (ZA-)

0INLET VOLUME FLOW(#M-WET)

!3 !4 !5 !6

!7

DISCHARGE

(3.1.13) ~~

0 COMPRESSOR INLET FLANGE

comrnoNS:

O SIKCER

INLET FLANGE

O PRESSURE (BAR)@Pa-&)

OTEMPERATLIRE (oc)

0Cflv (Kz) OR 0COMPRESSIBILITY (&J OR (&va) W A V ~

!8

0kW REQUIRED ( A U LOSSES INCL) [7SPEED (RPM) 0PRESSURE RATlO(R) E OVOLUMETRIC EFFICIENCY (%) a 0SILENCER A P ?9

30 31

340 35

PERFORMANCE CURVE NO.

36 PROCESS 37 CONTROL:

i METHOD

VARIATION SIGNAL:

43

44

45

46 47

SERVICE

(5.4.21)

.,

0 BYFROM OW

rn

OMANUAL

OAUTO

0 SPEED FROM 0 OTHER 0 SOURCE 0 TYPE 0 RANGE PNEUMATIC CONTROL RPM FOR 0 OTHER 0 SPECIAL PURPOSE (3.1.37) 0 GENERAL PURPOSE (3.1.9) 0 CONTINUOUS 0 INTERMITENT 0 STANDBY(3.1.39)

TO

O

(BARG) 8

RPM O

(BARG) 8 (kW

(kW

0 DRYSCREW(3.1.6)

OFLWDED SCREW (3.1.7)

OSEPARATOR (4.10.5.8)

50

51

45 --``,,,,,``,,``,`,,`````,,```,-`-`,,`,,`,`,,`---



ROTARYœTYPE POSITIVE DISPLACEMENTCOMPRESSOR DATA SHEET SI UNITS 1

NOR-

GAS ANALYSIS

2 O W L %

o

MAX-

JOB NO. NO.

ITEM NO. DATE

REVISION PAGE

OF

2

9

0 REMARKS(5.1.2)

OTHER CONDITIONS

MAL

A IMUMB

C

BY

D

i

M.W.

3 4 AIR

28.966

5 OXYGEN

32axl

6 NITROGEN

28.016

7 WATER VAPOR

18.016

8 CARBON MONOXIDE

28.010

9 CARBON MOXIE

44.010

IO HYDROOEN SULFIDE

34.076

Il HYOROOEN

2.016

12 METnANE

16.042

(4.11.1.5)

I5 16 17

18

19 !O !1

0 CORROSIVE

24

I

I

I

25

I

I

I

I

I

I

l --``,,,,,``,,``,`,,`````,,```,-`-`,,`,,`,`,,`---

I

?Q AVG. MOL. W.

I

I

I

%O LOCA-

(4.1.1.5) 0 INDOOR

o OvrWoR

0 UNDER ROOF 0 PARTlALSlMS

0 HEATED 0 UNHEATED 0 MEZZANINE

0 GRAM 0 ELECTRICAL AREA CLASS 0 WlNlERlZATlON RECYD.

GR

o ELEvATloN

I

1

NOlSESPEC1FICATIONS:(4.1.13) 0 APPLICABLE TO MACHINE

SEE SPECIFICATION

0 APPLICABLE TO NEIGHBORHOOD

0 -MV.-

SEE SPECIFICATION

0 TROPICALWTIONREQ'D.

ACOUSTlC HOUSING

Sm DATk

SOUNDLEVQ

m

BAROMmR

0 RANGE W AMBIENT TEMPS.:

0 YES me-

0 NO

m dB R E 0.0002 MICROBAR APPLICABLE SPECIRCATK)EIS: API 619 POWIVE MSPLACEMENT ROTARY COMPRESSORS

(M)

(kPa-abs) BULB DRY

WET BULB

K1

SMPUEHT: (6.4.1)

L9

i0

I(4.11.1.4)

0VENDOR HAVING UNIT RESPONSIBILIM: (3.1.42)

il

.

I

0 EKPORT 0 LONG TERM STORAGE FOR ODoMEsrlC

0 EXPORT BOXING REQ'D MONTHS

46 COPYRIGHT 2003; American Petroleum Institute


m 07322713

S T D bL'1-ENGL L717

STD.API/PETRO

ROTARY-TYPE POSITIVE DISPLACEMENT COMPRESSOR DATA SHEET SI UNITS

05b73b5 U T 2

JOB NO.

ITEM NO.

DATE

REVISION NO. PAGE

OF

3

BY

9

r

SHAFT: (45.12)

MAX. COM. (3.1.19) ALLOWMIN.

(3.1.41) RPM m/$ O MAX. OPER. SPEED

MATERIAL

RPM

SHAFT END.

TRIPRPM

(3.1.22)

DIA O ROTORS DIA (mm)

O COUPLING (mm)

CYLINDRICAL

TAPERED

(4.5.1S)

0 LATERAL CRITICAL SPEEDS(4.7.1.6) SHAFT SLEEVES

RPM

ED

SHAFT 3 AT

DAMPED B

B

MODE SHAPE

-

LATERALcRmcAL SPEED BASIS

D

0 DAMPED UNBALANCE RESPONSE ANALYSIS

1

0SHOP TEST

2

[7MAL

SEALS

IITUINGGEARS (45.2) PITCH UNE DIAMETERTYPE (mm)

OTHER TYPE ANALYSIS: POCKEl FREQUENCY ING

MATERIAL

(SPECIFy)

3

0

4

OTORSIONAL CR T C IAL SPEEDS: (4.7.2)

SHAFT SEALS: (4.6)

Hz

0 TYPE 0 SEAL SYSTEM TYPE(4.6.1.4)

[:3INNER

C> W

7

c1

OIL LEAKAGE GUAR. (LTRS/DAY/SEAL)

E BUFFER GAS(4.8.3.3& 4.6.7)

BUFFER GAS FLOW (PER SEAL)

8 OWBRATION

9

ALLOWABLE

T E S

NORMAL:

kmlNO

(BAROI) k W

O

(PEAK TO PEAK)

SITE

MAX.:

kgMIN O

(BARG) )Wa)

c1

BEARING HOUSING (4.9)

SPUT INTEGRAL) (SEPARATE, TYPE MATERIAL

!4

MODEL

!5

CASlNG SPUT

!6

MATERIAL

!7

OPERATION

!8

THICKNESS(mm)

!9

I:3RADU (mm)

SPAN

0

REUEFVALVE SETnNG

Il I2

MARGINFOR ACCUMULATION (BARG) TEST PRESS. (BARG) &Pa) HEUUM

13

MAX. ALLOW. TEMP.

M

COOUNGJACKET

35

RADIOGRAPH QUAUTY

S

BABBITT (BARG) &Pa)

&Pa)

RPa)

0 TEMP SENSORS(4.9.3) 0 TC ORTDTYPE

OC

NO PER BRG

o YES -O N 0

H T R U S I TBEARING (IDENTIFY HIGHEST LOADEDBEARHG) (4.81

TYPE

DIAMETER (mm): FEMALEMALE LOBES: 38 NO.

LOCATION MFR.

(mm')

39

TYPE:

LOADING ( M m ? : ALLOW.

40

TYPE FABRICATION

NUMBEROF PADS

41

MATERIAL

42

MAX. YIELD STRENGTH(mm) (N) ROTOR LENGTH

AREA ACT.

PAD MATERIAL THICKNESS

MAX.

43HARDNESS. BRINELL M

OR BETWEEN PADS

TYPE

HYDRO

U ON YO ES

OROTORS (4.~1)

-

(BARG)

O TEMP. COPER. MIN.

37

ALLOW. LOADING ACT. (N/mrn?:

PADSNO. LIQUID ROTORON PAD MATERIAL

OFLOODED,wt

CORR. ALLOW (mm) THICKNESS MAX. ALLOWABLE WORK PRESS. (IN.) (3.1.18)

IO

(IDENTIFY HIGHEST LOADED BEARING) (4s)

AREA (mm?

OCIADDING (42.9) ODRY

BEAR-

TYPE

BABBITT

TYPE

MIN.

TO DIAMETER tuno (m)

45 ROTOR CLEARANCE (mm) 46 MAX. DEFLECTION (mm) 47 UNCOOLED COOLED INTERNALLY 48

=ACTIVEBRG

PER

0

TEMPSENSORS(4.9.3)

0

TC

NO

0 RTD TYPE OINACTIVE

49 REMARKS: 50 51

47 --``,,,,,``,,``,`,,`````,,```,-`-`,,`,,`,`,,`---



m

STD-APIiPETRO STD bL7-ENGL 1777

0732270 05b7366 T37

ROTARY-TYPE POSITIVE

DISPLACEMENTCOMPRESSOR DATA SHEET SI UNITS

NO.

E M No.

JOB REVISION NO. PAGE ~

~~

4

~

UIAL

DATE OF

9

BY

~~

msmm DETECTOR:

(5.4.3.s.r)

0 IN ACCORDANCE Wrm: API 670 OTHER (SPECIFY)

o TYPE

MODEL

0 MR. 0 NO. REQD' 0 OSCILLATOR-DETECTORS SUPPUED BY 0 MFR 0 MODEL 0 MONITOR SUPPLIED BY ENCLOSURE 0 LOCATION

.

o MR. 0MODEL OSCALERANGE OALAAM: DsETe 0 SHUTWWN: 0 SET Q -UM O nME DELAY '

UM SEC

XHIPLINGS: (5.2)

0 IN ACCORDANCE WITH API 671

VERTICAL HORIZ. W 17

OTHER (SPECIFY) FORCE

MOMT

-CE

MOMT

MOMT

FORCE

DRIVERCOMP OR DRlVER GEARCOMP

OIIIw<E UMODEL 0 LUBWCATlON 0 MOUNT LG. HALVES 0 SPACE REQUIRED 0 LIMITED END FLOATRECYD

0 IDLINGADAPTER REWIRED U C P L G . RATING(kW/lOORPM) KEYED (1) OR (2) OR MDR. FIT 3 A s E p L A T E & s o L E P u ~(5.3) joLE PLATES FOR:

0 COMPRESSOR

0 GEAR

0 DRIVER

USEPIATE:

0 COMMON (UNDER COMP.GEAR (L DRIVER) 0 UNDER COMP. ONLY 0 OTHER 0 DECKEDWITH NONSKIDDECK PLATE 0 -N CONSIR 0 DRIP RIM 0 WITH OPEN DRAlN 0 SUBPLATE (5.3.2.7) 0 HORIZONTU ADJUSTINGSCREWS FOR MUIPMENT 0 SUITABLEFOR COLUMN (5.323)

BRG. HOUSING BETWEEN BRG.B

I

37

sw

BETWEENSEAL b GAS

0 OIL MIST CONNECIION

38

~

~~

~~

0 SUITABLE FORPERlMmR 0 EPOXY GROUTEPOXYPRIMER (5.3.1.2.5)

~

10 VIBRATION DITECTORS: (WS) 11 12

0 IN ACCORDANCEWITH: APE70 0 OTHER (SPECIFY)

43 O W E $4 O M F R

U W 47 W

&BE 011SYSTEU (4.1 O)

0EACH AT NO. S M BEARING TOTAL NO. 0 0SCILIAToR.MTEcfoRSSUPPLIED BY 0 MR. UMODEL OLOCATION

50

0 MODEL OSCALERANGE - 0 ALARM.

i2 53

O ALTERNATE LUBE SYSTEM (410.5) 0 OIL COOLER (4.10.5.4)

0 OIL FILTER(4.10.5.5) 0 HEATER (4.10.5.6)

0 MONITOR SUPPUED BY

49

51

0 614 LUBE OILSYSTEM (4.10.3) 0 COMMON (4.10.4) 0DEDICATEDSYSTEM

MODEL

0 OIL SEPARATOR (4.10.5.8)

ENCLOSURE

0

OMFR.

0 SHUTDN: [ 7 S E T @ -UM 0 PHASE REFERENCE TRANSDUCER

OSETg 0 TIMEDLY.

UM

-SEC

CARRYOVER (4.10.5.8.1)

0 INSTRUMENTS(4.10.5.8.4: j I k)

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S T D - A P I / P E T R O S T D bL7-ENGL L717 m 0 7 3 2 2 7 0 05b73b7 7 7 5

DATE

REVISIONNO. PAGE

OF

S

9

BY

IJ WEIGHTS (LBS):

1 VnUTYCONDITIONS: 2

ITEM NO.

JOB NO.

BASE DRIVERS

STEAM HEATING

DRIVER GEAR

GEAR DRIVER

COMPR.

COMPR.

ROTORS: COMPR. UPPER CASE LO. CONSOLE

S.O. CONSOLE

MAX. FOR MAINTENANCE(IDENTIM)

I

TOTAL SHIPPING WEIGHT I

I

II

1 1: 1:

-

1.

MI!ICEUANEOUS:

c

]RECOMMEND W G H T RUN OF PIPE DIA BEFORE SUCTION

11

C1VENDOR'S

1,

REVIEW

a COMMENTS ON PURCHASERSPIPING

6. FOUNDATION(4.1.1 1)

1'

C) VENDOR REPRESENTATIVE OBSERVATIONATTHE SITE (4.1.11) C OPTICAL ALIGNMENTFIATS REQUIRED ON COMPRESSOR.

1 1

GEAR 8 DRIVER

2

C) PROVISION FOR WATER WASHING BEFORE OPENING CASING

2

BY

2

(4.7.1.6) C> LATERAL ANALYSIS REPORT REQUIRED (4.72.5) C> TORSIONAL ANALYSIS REPORT REQUIRED C> PROVISIONSFOR TORSIONAL PICKUP ON CASE

2 2 2

CONDENSATE REMOVAL EQUIPMENT REQUIRED

2

0 YES

2

0 NO

SILENCERS FURNISHEDBY

2

, c> SPARE PARTS TO BE SUPPLIED(7.2.F)

2 3 3 1 SHOP INSPECTION(6.2) 32 HYDROSTATIC(6.3.2) 33 HELIUM wK(6.3.4.5)

34 MECHANICAL RUN(6.3.3) 35 MECHANICAL RUN SPARE ROTORS (6.3.3.4.3) 36 CASING LEAK TEST (6.3.3.4.4)

7 PERFORMANCE TEST (GAS) 35 (AR) (6.3.4.1) 38 COMPLETE UNIT TEST (6.3.4.2)

39 COMP. LESS DRIVER

40 USE SHOP LUBE a SEAL SYSTEM 41 USE JOB LUBE a SEALSYSTEM (6.3.4.7) 42 USE SHOP VIBRATION PROBES, ETC.

O O O O O O O O O O O O

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47

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O O O

53 RESIDUAL UNBALANCE CHECK(4.7.3.3)

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0 INSTRUMENTTAGGING REQUIRED.

46 ALARM AND SHUTDOWN SWITCHES SHALL BE SEPARATE. OF THE BASEPLATEAND CONSOLE SHALL 47 PURCHASERS ELECTRICAL AND INSTRUMENT CONNECTIONS WITHIN THE CONFINES

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0732290 05b7370 4bT


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8

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0 AS BUILT UNIT

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8

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MOTOR DESIGN DATA(CONTD)

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9 APPLICABLE SPECIFICATIONS:

STARMG (5.1.4b)

0 NEMA 0 AP1541 (5.1.5)

1O 11

1 1

0 FULL VOLTAGE 0 LOADED 0 VOLTAGE DIP

-

0 CL 15 O A L T . m 16 UNUSUAL CONDITIONS:

14 AREA:

-

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O AMB.TEMPS: MAX.

0 DUST

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0 VOLTAGE REDUCED 0 UNLOADED %

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17 O O T H E R 18 DRIVE

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19

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0 DIRECT CONNECTED 0 GEAR 0 OTHER

0 BASEPLATE 0 SOLEPLATE 0 STATORSHIFT 0 MFR. STD. FANS 0 NON-SPARKING FANS 0 D.C. EXCITATION: O KW REQD 0 VOLTS By: 0 PURCHASER 0 MANUFACTURER

2'1 TVPEYOTOR: @.ln) 22 0 SQUIRREL CAGE INDUCTION

0 NEMA DESIGN 0 SYNCHRONOUS 241 0 POWER FACTOR RMD. 25 EXCITATION: 0 BRUSHLESS 0 SUPRING 2'6 0 FIELD DISCHARGERESISTOR BY MOTORMFR. 2'7 0 WOUND ROTOR INDUCTION 23

28

31

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0 MFR

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416 BASIC DATA:

511

0 NEO. TEMP. COEFF. ON0

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41 7 PHASE 4B

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9

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r

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2 3 4

ACCESSORY EQUIPMENT(CONTD)

0 LIGHTNING ARRESTERS 0 C.T. FOR AMMETER 0 DESCRIPTION

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13 14

MANUFACTURER'S DATA(CONTD.) LUBR.

BEARING N P E

NEMA

PER

TESTING MFR. STD. SHOP TESTS

28 OPEN CIRCUIT TIME CONSTANT (SEC.) TEST 29 SYMMETRICAL CONTRIBUTION TO 30 TERMINAL FAULT 30 AT 1R CYCLES AT 5 CYCLES

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31 REACTANCES: SUB-TRANSIENT 32 TRANSIENT(X'd

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36 KVA. O FULLVOLTAGE 8 95% SPEED

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44

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49 EXCITATION FIELD

AMPS MIN. MAX.

50 EXCITATION FIELD 51 SUPPLIED BY

RHEOSTAT

c]FIXED RES'TR REQD.



NO.

JOB

ROTARY-TYPE POSITIVE DATE NO. DISPLACEMENT COMPRESSOR DATA SHEET U.S. CUSTOMARY UNITS 1 J A p P u c m E ~ oOPROPOSAL

OPURCHASE

OAS BUILT

ORDER

ITEM NO.

PURCHASE REQUISITIONNO. INQUIRY NO.

1

DATE

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2 FOR

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SERIAL NO.

4 SERVICE MODEL5 MANUFACTURER (5.1.l) 6 NOW 0 INDICATESINFORMATIONTOBECOMPLETEDBYPURCHASER OPERAllNG CONDITIONS 7 c 8 CONDITIONS (5.1.2) OTHER MAXIMUM NORMAL A (3 (4.1.4) .12 4 L 4.13) 9 AIL DATA ON PER UNiT BA=

B

11 12 13 14

0 CERTIFIEDW N T (4 0 GAS HANDLED ( A L S O SEE PAGE2) 0 MMSCFDBCFM (14.7PSIA 8 W F DRY) (3.1.38) 0 WEIGHT FLOW. Ibs/MIN (WET)(DRY)

15

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I

I

I

10

I

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,

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0

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16 17

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IBFE"% ig

50 51

54 --``,,,,,``,,``,`,,`````,,```,-`-`,,`,,`,`,,`---



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ROTARY-TYPE POSITIVE DISPLACEMENTCOMPRESSOR DATA SHEET DATE NO. U.S. CUSTOMARY UNITS

1 NORANALYSIS GAS 2

0 MOL% 0

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3

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0 HEATED 0 UNHEATED 0 MEZtANlNE

33

OGRADE

34

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0 ELEVATION FT. 0 RANGEOFAMBIENT TEMPS.:

40

0 YES

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43 45

o OTHER

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0 MANUFACTURERS STD. 0 OTHER

46 47

48

SHIPMENT: (6.4.1)

A9

50

0 VENWR HAVINGUNITRESPONSIBILITY:

(3.1.42)

O mMEsnc 0 LONG TERM STORAGE MONTHS FOR

0 EXPORT

0 EXPORT BOXING REO'D

51 52 REMARKS:

-53



STD*API/PETRO STD b17-ENGL

ROTARY-TYPE POSITIVE DISPLACEMENT COMPRESSOR DATA SHEET US. CUSTOMARY UNITS

0732290 05b7374 0 0 5

JOB NO.

ITEM NO.

REVISION NO. PAGE

DATE OF

3

BY

9

2SHAFT: (4.5.1.2)

OSPEEDS: MAX. CONT. (3.1.19)

TRIPRPM

(3.1.41)

RPM

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FIRST

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0 TYPE 0 SEAL SYSTEM TYPE(4.6.1.4)

2 INNER OIL LEAKAGE GUAR. (GAUDAYLSEAL) 0 TYPE BUFFER GAS (4.6.3.38 4.6.7)

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18 OWBRATION:

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-OR BEWEEN

PAD MATERIAL

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(IN.)

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ROTARY-TYPE POSITIVE DISPLACEMENTNO. COMPRESSOR ITEM DATA SHEETDATE U.S. CUSTOMARY UNITS

0732270 05b7375 T'4L W

L777

NO.

JOB

NO.

REVISION 4

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0 IN ACCORDANCE WITH: API 670 OTHER (SPECIPI)

0 OSCILLATOR-DETECTORS SUPPLIED BY 0 MONlTOR SUPPLIED BY

CE WITH: API 671

MOUNT LG. HALVES SPACE REQUIRED LIMITED END FLOAT REQ'D

OMPRESSOR

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ONLY

COMP. 0 UNDER

8 SEAL

0 GEAR

0 OTHER CONSTR.

BETWEEN SEAL 8 GAS

0 OPEN 0 SUBPIATE (5.3.2.7)

HORIZONTAL ADJUSTINGSCREWS FOR EQUIPMENT SUITABLE FOR COLUMN (5.3.2.3) SUITABLE FOR PERIMEFER

LUBE OIL SYSTEM (4.10)

0 614 LUBE OIL SYSTEM(4.10.3) 0 COMMON(4.10.4) O DEDICATEDSYSTEM 0 ALTERNATE SYSTEM LUBE (4.10.5) 0 OIL COOLER (4.10.5.4) 0 OIL FILTER (4.10.5.5) 0 HEATER (4.10.5.6) 0 OIL SEPARATOR (4.10.5.8)

TOTAL NO.

MILS

0 TIMEDLY.

0 CARRYOVER (4.10.5.8.1) 0 INSTRUMENTS (4.10.5.8.4: j 8 k)

-

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0 DRIVER


STD*API/PETRO STD bL7-ENGL L777

0732290 056737b 988

m

ROTARY-TYPE POSITIVE DISPLACEMENT COMPRESSOR DATA SHEET U.S. CUSTOMARY UNITS

PAGE

3

DRIVERS DRIVER

MIN. INLET NORM

5

MAX.

6

-PSlG -PSIG -OF -PSIG -OF -PSlG -OF -PSlG

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L-

W-

H -

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L-

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H-

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L-W-

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'F PSI0

0 RECOMMEND STFl4lGHT RUN OF PIPE M A BEFORE SUCTION 0 VENDOR'S REVIEW 8 COMMENTS ON PURCHASER'S PIPING

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0 VENDOR REPRESENTATIVE OBSERVATION AT THESITE (4.1.11) 0 OPTICAL ALIGNMENT FLATS REQUIRED ON COMPRESSOR.

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O

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0GASKETS, O-RINGS

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STD*API/PETRO STD bL7-ENGL L797

ROTARY-TYPE POSITIVE DISPLACEMENT COMPRESSOR DATA SHEET DATE NO. U.S. CUSTOMARY UNITS

0732270 0 5 b 7 3 7 7 8LY M

ITEM NO.

JOB NO. REVISION PAGE

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6

9

BY

VENDOR MUST FURNISHALL PERTINENT DATA FORM I S SPECIFICATION SHEET BEFORE RETURNING. ITEM NO. MANUFACTURER AREA C u s s m c A n o N :

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0

ANNUNCIATOR: FURNISHED BY: VENDOR PURCHASER OTHERS 13 ANNUNCIATOR LOCATED ON LOCAL MAIN CONTROL BOARD 14 CUSTOMER CONNEmONS BROUGHT om To TERMINAL BOXESBy VENWR 15 INSTRUMENT SUPPLIERS: 16 0 PRESSURE GAUGES (5.4.3.4) MFR. SIZE & T Y P E 17 0 TEMPERATURE GAUGES (5.4.3.2) MFR. SIZE 8 TYPE MFR. SIZE 8 TYPE: 18 0 LEVEL GAUGES GAUGES PRESSURE MFR. SIZE 8 TYPE: 19 0 DIFF. 20 0 PRESSURE SWITCHES Mm. SIZE & TYPE: SWITCHES PRESSURE 21 0 DIFF. & TYPE: 22 0 TEMPERATURE SWITCHES MFR. SIZE 8 TYPE: SWITCHES: 23 0 LEVEL MFR. SIZE & TYPE: MFR S E & TYPE: 24 0 CONTROL VALVES VALVES (5.4.3.6) SIZE MFR. 8 TYPE: 25 0PRESSURERELIEF ES: RELIEF 26 0 THERMAL MFR. SIZE &TYPE INDICATORS: FLOW 27 0 SIGHT (5.4.3.7) Mm. SIZE a TYPE: OR. FLOW 28 0 GAS 8 TYPE: 29 0 VIBRATION EQUIPMEM: MFR. SIZE 8 TYPE: 30 0 TACHOMETER (5.4.3.1) RANGE MFR. 8 TYPE VALVES31 0 SOLENOID MFR. SIZE & TYPE MFR. POINTS MODEL & NO. 32 OANNUNCIATOR Mm. SIZE a TYPE: 33 Mm. SIZE a TYPE: 34

0

n

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0

35 NOTE: SUPPLIEDBYVENDOR PRESSURE GAUGE LOCAL LOCALLY 36 REQUIREMENTS 37 FUNCTION MOUNTED 38 LUBE OIL DISCHARGE PUMP 39 LUBE OILPFILTER A 40 LUBE OIL SUPPLY 41 SEALOILPUMP DISCHARGE

0 SUPPLIED BY PURCHASER LOCAL

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00 00 O0

42

SEAL OIL FILTER A P

43

SEAL OIL SUPPLY (EACH LEVEL)

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44 DIFFERENTIAL SEAL OIL

45 46 EDUCTOR 47 LINE

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48

0

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ROTARY-TYPE POSITIVE DISPLACEMENT COMPRESSOR DATA SHEET U.S. CUSTOMARY UNITS

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~____

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~~~~

~

DATE OF

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W

38 39 40

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0 DE-ENERGIZED 0 DE-ENERGIZED

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44 YISCELUNEWS

45

0 INSTRUMENT TAGGING REQUIRED.

46 ALARM AND SHUTDOWN SWTTCHESS W BE SEPARATE. 47 PURCHASERS ELECTRICAL AND INSTRUMENT CONNECTIONS WITHIN THE CONFINES THEOF BASEPLATE AND CONSOLE SHALL

0

M BE: BROUGHT OUT TO TERMINAL BOXES. 49 COMMENTS REGARDING INSTRUMENTATION

0 MADE DIRECTLY BY

THE PURCHASER


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"

"

c] 0 LOWSEALOILPRESSURE

41 SmrCHCLOSURES:

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00 00 O0 Do

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36

0 0 0 0 0 0

0LOCAL SEPARATE 0MAIN BOARD 0 0 SIGHT FLOW INDICATORS, EACH JOURNAL THRUST BEARINGQ EACH COUPLING OIL RETURN UNE 0 0 SIGHT FLOW INDICATORS, EACH SEAL OILRETURN UNE 0 0 LEVEL GAUGES. LUBE ANWOR SEAL OIL RESERVOIR. S.O. D W N TRAPS 8 S.O. OVERHEAD TANK

0 0 LOWLUBEOILPRESSURE

33 34 35

(3.1.27)

[7 0 DRIVERSTAATETOP

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27

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PANU(3.1.27)

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5 JOURNAL BEARING COMPR. 6 JOURNAL BEARING DRIVER

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ROTARY-TYPE POSITIVE NO. DISPLACEMENT COMPRESSOR SHEET DATA DATE NO. CUSTOMARY U.S. UNITS

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STD-APIIPETRO S T D bL7-ENGL L777 M 0732270 05b7377 h77

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MOTOR DESIGN DATA(CONTD)

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9STIFITWG: APPLICABLE SPECIFICATIONS:

11D 11

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0 NEMA

o A P I 541 (5.1.5)

0 LOADED O VOLTAGE

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14AREA: 15

0 CL -

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0 ALT.

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F'-

0 BASEPLATE 0 SOLEPLATE 0 STATOR SHIFT 0 Mm.STD. FANS 0 NON-SPARKING FANS 0 D.C. EXTATION W REQD 0 VOLTS BY: 0 PURCHASER 0 MANUFACTURER

I l TYPE MOTOR (5.1.4)

!5 !6

!7 !B

0 SQUIRREL CAGE INDUCTION 0 NEMA DESIGN 0 SYNCHRONOUS 0 POWER FACTOR REQD. EXCITATION 0 BRUSHLESS 0 RING SUP 0 FIELD DISCHARGE RESISTORBY MOTOR MFR. 0 WOUND ROTOR INDUCTION

DESCRIPTION

0 ENCLOSED COLECTOR RINGS

0 PURGED PRESS. MEDIUM

0 ,

GROUP

0 LOCATION

PROOF , EXP.

0 TEFC

12

0 TEWAC GASUSING 0 TEIGF. 0 M)UBLE WALL CARBON STEEL TUBES TEMP. 0 PSlG PRESS. SUPPLY WATER 0 WATERAU0W.A P -PSI a TEMP. RISE 0CORR. WATER ALLOW. MIN. SIDE IN.

0DESCRIPTION 0SET e,

-

0 (AIR) (GAS) SUPPLY PRESS. 390 40 0 WEATHER PROTECTED, TYPE 41 0 FORCEDVENTILATED 42 0 OPEN-DRIPPROOF 43 0 OPEN 38

KW

OF

48 49 50 51

0-VOLTS HERTZ

0 THERMISTORS: NOJPHASE NP€ 0 POS. TEMP. COEFF.

PSI0

TEMPERATURE SWITCH:

PHASE

OYES

0 NEG. TEMP. COEFF. 0 NO

0 RESISTANCE TEMPERATURE DETECTORS NOPHASE

0

RESISTANCE MATL SELECTOR SWITCH8 INDICATOR BY:

n

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0 PURCHR.

0 MFR.

MAX. STATOR WINDINGTEMPS OF

ALARM FOR

SHUTDOWN FOR

OF

WINDING TEMP. DETECTOR& SPACE HEATERW D S

0 IN SAME CONDUITBOX 0 IN SEPARATE CONDUIT BOXES

46 BASIC D A T k

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!9 ENCLOSURE (5.1.k)

33 34 35

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0 DIRECT CONNECTED 0 GEAR 0 OTHER

!O

!4

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0 OTHER

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!3

%

ACCESSORY EQUIPMENT

18 ORNE SYSTEM:

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0 DUST

16 UNUSUAL CONDITIONS: 17

-O

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0 AMB.TEMPS

0 REDUCED VOLTAGE 0 UNLOADED

VOLTS

0NAMEPLATE SERVICE FACTOR HP

52

0 MOTOR ARRANGEDFOR DIFFERENTIAL PROTECTION 0 SELFBALANCEPRIMARY CURRENT METHOD 0 C.T. DESCRIPTION 0LEADS EXTENDED 0LENGTH

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0732270 05b7380 309

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DATE

~~

NO.

U.S. CUSTOMARY UNITS

"

~

PAGE

ACCESSORY EQUIPMENT (CONT'D) 2 3

0 UGWMINGARRESTERS 0 C.T. FOR AMMETER 0 DESCRIPTION

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7

8

0 C.T.'S FOR DIFF. PROTECTION (MOUNTED BY

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0 C.T. FORBY (MOUNTED AMMETER 0 SPACE FOR STRESS CONES

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0 AIRFILTERS

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ON=

n

% RATEDVOLTAGE)

WEIGHT (LBS): 1/2 L WEIGHT SHIPPING WEIGHT

Y4 L

19 PWR. F.L (IND.): FACTOR

1R L

Y4 L

-

20 CURRENT(R4TEDVOLT.): FULLLOCKEDROT. LOAD 21 LOCKED ROTORPOWER FACTOR

NET ROTOR WEIGHT

MAX. ERECTION W.

MAX. MAINT. WT. (IDENTIFY) DIMENSONS (RET81INCHES):

22

L

H LOCKED ROTOR WITHSTAND TIME (COLD START)

W

23 TORQUES (FT-LBS): FULL LOAD

sm)P INSPECTIONAND TESTS

24 STARTING LOCKEDROTOR 25 WU-UP (IND)

REQUIRED

(SYN.) PULL-IN (SYN.) INSPECTION NEMA(SYN.) PER

BRWCWWN PULL-OUT (IND.)

SHOP TESTING

Mm. SID. SHOP TESTS

27 28 OPEN CIRCUITTIME CONSTANT (SEC.) TEST 29 SYMMETRICAL CONTRIBUTION TO 30 TERMINAL FAULT: 30 AT 1R CYCLES AT 5 CYCLES

IMMERSION SPECIAL TESTS(UST BELOW)

31 REACTANCES SUETRANSENT (x'd

32SYNCHRONOUS TRANSIENT(XJ

(W

33 AC. STATOR RESISTANCE

OHMS B

~

35 KVA INRUSH

B FULL VOLT. S LOCKED ROTOR (SYN.) 36 KVA 0 FULL VOLTAGE S 95% SPEED 38

% %

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O O O O

O

O

O O

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o Mm. o MTR Mm.

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39 ACCELEMTlON TIME (MTR ONLY B RATED VOLT.) SEC 40 A c c E L n m (MIR 8 LOAD Q m% RATEDVOLT.)

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44 ~~

45 FIELD

46 RATED TAGE FIELD EXCITATION 47 RESISTANCE EXCITATION FIELD OF

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41 ROTOWFIELDWK2 Q MlR SHAFT (LB-FF)

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34RATEDKVA

37

IN H&

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48 EXCITATION FIELD AMPS 8 FULL LOAD8 RATED P.F. 49 EXCITATION FIELD AMPS MAX. MIN. 50 MCITATIONFIELD RHEOSTAT FIXED RES'TR REQD.

0

51

SUPPLIED BY

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62 Document provided by IHS Licensee=BP Amoco/5928366101, =, 03/18/2003 01:22:58 MST Questions or comments about this message: please call the Document Policy Management Group at 1-800-451-1584.

APPENDIX B-MATERIALS ANDTHEIR SPECIFICATIONS FOR ROTARY COMPRESSORS (INFORMATIVE)



--``,,,,,``,,``,`,,`````,,```,-`-`,,`,,`,`,,`---

S T D = A P I / P E T R O S T D b l 7 - E N G L L777 M 0732270 0 5 b 7 3 8 l 245

S T D - A P I I P E T R O STD b19-ENGL

ROTARYTYPE POSITIVE DISPUCEMENT COMPRESSORS FOR PETROLEUM, CHEMICAL, AND GASINDUSTRY SERVICES

65

Table B-1-Materials and Their Specificationsfor Rotary Compressors CAUTION: This table is intended as a general guide. It should not be used without a knowledgeable review of the specific services involved. Temperature Limitsof Application OC MaximumMinimumForm MaximumMinimum

cificationMaterial Component Casing (-0

Gray iron

ASTM A 48Class 20.30.35 -28.89 ASTM A 278Class 40 ASTM A 395 ASTM A 436 Type II -45.56 ASTM A 57 Type 1 D2M ASTM A 216 Grade WCB normalized ASTM A 352 Grade LCB ASTM A 352Grade LC2 ASTM A 352Grade LC3 ASTM A 352 Grade LC4 ASTM A 351 GradesCF3,CF3M, CF8,CF8M ASTM A 743 and 744 CA6-NM ASTM B 367Grade C3 or C4 ASTM B 495 Grade R60702 45.56

Gray iron Ductile iron Austenitic iron Austenitic iron

Steel Steel Steel, 2-3% Ni Steel, 3 4 % Ni Steel, 4 5 % Ni stainless steel Stainless steel

Titanium ZirCOniUm

Casing (fabricated)

Shaft

Steel Steel Steel Steel Steel Steel Steel Steel Stainless Steel Steel Steel Steel Steel Steel

-28.89 -28.89

Cast cast

260.00 260.00 260.00

-195.56

260.00 398.89 343.33 343.33 343.33 343.33

cast Cast cast cast Cast cast cast Cast cast

232.22

-28.89 -45.56 -73.33 -101.1 I 15.00 -1 -195.56 -195.56 45.56

10.00 Wrought -28.89 Wrought A5 I6 Grade 55 (without impact test) per ASTM A 593) Wrought A 5 16 Grade 55 (impact tested A 203 Grade or AB Wrought A 203Grade Dor E Wrought A 537 wrought A 353 Wrought -195.56 ASTM A 553 Type Ior II Wrought ASTM A 240Types 304,304L, 316,316L, 321 Wrought

ASTM ASTM ASTM ASTM ASTM ASTM

Stainless steel Stainless steelPH Steel, 9%Ni Shaft

Aluminum

ASTM B 26 Alloys 443,355,850, A850, B850

Labyrinth'

Babbitt ASTM B 23 Stainless steel AISI Type 403,410,416,303,304,316,Alloy 2OCb Stainless steel honeycomb Monel Alloy400 ASTM B 164 Class A Nonmetallic tetra- fluomthylene ('IFE)

Steel

Cast cast Cast

ASTMA285GradeCorA515Grade55

AIS1 1030-1035 AISI 1040-1050 AIS1 41404145 AISI 4340-4145 AISI 2320 ASTM A 470Class 7 ASTMA 151 Type41OSS ASTM A 564- 15-5.17-4 PH ASTM A 522 Type I

seal

OF

-

45.56 -59.44 -106.67 -59.44 -170.56 -195.56

343.33 343.33 148.89 148.89 343.33 343.33 343.33 343.33 343.33 343.33 343.33 343.33 343.33

-20 -20

450 500

-20 -50

500 500 500

-320 -20

-50 -100 -150 -175 -320 -320 -50 -50 50

-20 -50 -75 -160 -75 -320 -275 -320

m 300 650 650 650 650 650 650 650 650 650

Forged Forged

-59.44 -59.44 -195.56

398.89 343.33 398.89 426.67 343.33 343.33 343.33 343.33 343.33

cast

-195.56

3 15.56

-320

600

176.67 343.33 343.33

-320 -320 -320

350 650 650

343.33 260.00

-1 75 -320

650

-28.89Forged -28.89Forged -28.89Forged Forged Forged -45.56Forged Forged

-1 15.00 12.22 -1

Cast

-195.56 -195.56 Wrought Fabricated -195.56 Wrought Molded

-1 15.00

-195.56

-20 -20 -20 -175 -170 -50 -75 -75 -320

750 800 650 650 650 650 650

--``,,,,,``,,``,`,,`````,,```,-`-`,,`,,`,`,,`---


750 650 650 650 650 650 650


750 650

500

66

API STANDARD 619

Table B-1-Materials and Their Specificationsfor Rotary Compressors CAUTION: This table is intended as a general guide.It should not be used withouta knowledgeable reviewof rhe specific services involved. Temperature Limits of Application OC

Material Component

Form

Specification Nonmetallic carbon filled TFE Nonmetallic mica filled TFE

Rotor body

Steel Steel

Steel

--``,,,,,``,,``,`,,`````,,```,-`-`,,`,,`,`,,`---

Steel, 9% Ni Stainless steel Aluminum Ductile cast iron Gray cast iron F l u e n coating

shaft sleeves Steel and labyrinth Stainless steel seal sleeves stainless steel Monel U 00 Steel, 9% Ni Steel Pulsation daices

Steel Steel Steel Steel Steel

stainless steel Steel Steel Steel Steel

srainless steel

Molded

AIS1 1030-1045 AlSl4130-4150 AIS1 43304345 ASTMA522TypeI ASTM A 151 Type410 SS ASTM B 26 Alloy 355OR C355 ASTM A 395 ASTM A 48 Class 358

Minimum Maximum Minimum Maximum -28.89

260.00

-20

-53.89

260.00

-65

500

-28.89 -28.89 -1 15.00

398.89 398.89 398.89

-59.44

343.33 343.33 148.89 260.00 232.22 232.22

-20 -20 -175 -320

750 750 750 650 650

-195.56 -195.56 -28.89 -28.89 -28.89

Als1 4340

-1 15.00 -28.89 -73.33 -1 15.00 -195.56

AIS1 Type403 or410 ASTMA 564-15-5,174 PH AMS-4676 ASTMA522TypeI ASTM A 5 16-65madc to A593 ASTM A 5 16-70 made to A 593 ASTM A 203 Grade A (2 114 Ni) made to A 593 ASTM A 203 Grade B (2 114 Ni) made to A 593 ASTM A 203 Grade D (3 IL2 Ni) made to A 593 ASTM A 203 Grade E (3 IL? Ni) made to A593 ASTMA167Types304and316 ASTM A 333 Grade 1 (siliconkilled cast steel) ASTM A 333 Grade 6 (siliconkilled cast steel) ASTM A 333 Grade 7 (2 114 Ni) ASTM A 333 Grade 3(3 1R Ni) ASTMA312Types304and316

OF

45.w -45.56” -59.44a -59.44’ -101.11’ -101.11’ -195.56 -45.56 -45.56 -73.33 -101.1 1 -19556

398.89 343.33 343.33 343.33 343.33

-75 -320 -20 -20 -20

-1 75

-20 -100 -1 75 -320

-9 -5P

-752 -757 -158 -15P -320 -50 -50 -1 O0 -1 50

-320

aMMustbe impact-tested for the operating t e m .



300 500 450 450

750 650 650 650 650

S T D - A P I / P E T R O S T D bL7-ENGL L777

m

0732270 05b73811 T 5 4

m

APPENDIX &TYPICAL VENDOR DRAWING AND DATA REQUIREMENTS (INFORMATIVE)

--``,,,,,``,,``,`,,`````,,```,-`-`,,`,,`,`,,`---



~~

STD.API/PETRO STD bL7-ENGL L777 m O732270 0 5 b 7 3 8 5 970 m

ROTARY TYPE POSKIVE DISPUCEMENT

COMPRESSORS FOR PEFROLEUM, CHEMICAL, AND GASINDUSTRY SERVICES

ROTARY-TYPE POSITIVE DISPLACEMENT COMPRESSOR VENDOR DRAWING AND DATA REQUIREMENTS

--``,,,,,``,,``,`,,`````,,```,-`-`,,`,,`,`,,`---

I

I I

Reviewb Vendor

forallitemsindicatedbyan

X.

of drawings and data indicated.

shall furnish copies and transparencies

~~

Finalb Vendor shall furnish copies and transparencies drawings of and data indicated. Vendor shall furnish operating and maintenance manuals.

I I

I

vendor vendoß vendor

BY

UNIT

ProposalaBiddershallfurnishcopiesofdata

I

ITEM NO. DATE DATE DATE

REVISION

FOR SITE SERVICE

I

JOB NO. PURCHASE ORDER NO. REQUISITION NO. INQUIRY NO. PAGE 1 OF 2

69

to

from from Review-Returned DISTRIBUTION RECORD

Final-Received Due

1

I

I I

I I

l

l

I

Review-Received vendor from Review-due from vendof

,-. I

1

I

I l

I I

DESCRIPTION

aProposal drawings anddata do not haveto be certified or as-built. bPurchaser will indicate in this column the time frame for submission of materials using the nomenclature given at of thetheend form. CBidder shall complete these two columns to reflect his actual distribution schedule and include this form with his proposal.


1


STD*API/PETRO STD bLS-ENGL 1997 H O732290 05b738b 827 m

API STANDARD 619

70

--``,,,,,``,,``,`,,`````,,```,-`-`,,`,,`,`,,`---

ROTARY-TYPE POSITIVE DISPLACEMENT

NO. ITEM JOB NO-

COMPRESSOR VENDOR DRAWING AND DATA

OF

2 -

REQUIREMENTS

______

~ _ _ _ _

Proposala I

~~~~~

~

~

BY REV NO.

~~~

all items indicated byan X.

Biddershallfurnishcopiesofdatafor

Revie+ Vendor shall furnish copies and transparencies drawings of and data indicated.

I

~~~~~

Finalb Vendor

I

I

I

I

of drawings and data indicated.

I

vendor from DISTRIBUTION RECORD

vendor“

I

~

shall furnish copies and transparencies Vendor shall furnish operating and maintenance manuals.

I

Final-Received from Due Review-Returned to vendor Review-Received from vendor 1Review-Due from vendor“

1

I

I

I

I I

I I

l

i

l

3

I

DESCRIPTION

46. Material Safety Data sheets 47. Presetvation, packaging,and shipping procedures Bearing babbitt strengthversus temperature curves sProposal drawingsand data do not haveto be certified or as-built. bPurchaser will indicatein this column the time frame for submission of materials using the nomenclature given at the end of this form. cBidder shall complete these two columns to reflect his actual distribution schedule and indude this formwith his proposal.

48.

Notes: 1. Pennissionto proceed with manutäuure without purchaser’s w i e w of drawings is defined in the purchase order andlor7.2.2.2. 2. All drawings and data must show pmjcct, appropriation, purchaseorder, and item numben, in addition to plant loeation and unit. One set of drawings/insrmctonsnecessary for field instalkion must be forwarded with shipment in addition to copies specified above. 3. For a detailed explanation of drawing and data requiremtnts, see “Description” below. 4. All of the requested information indicated above shall be received before final payment will be made. 5. Send alldrawings and data to

Nomenclature: S-numkr of weeks prior to shipmnt F-numberof weeks after fim order D-number of weeks after receipt of approved drawings

-

Vendor Date Signanue

VendorReference (Signature acknowledgesreceipt of all insauctions)



STD.API/PETRO S T D bL9-ENGL L997 m 0732290 O567387 7b3 m ROTARY TYPEPOSITIVE DISP~ACEMENT COMPRESSORS FOR P€lROLEUM, CHEMICAL, AND GASINDUSTRY SERVlCES

Description l. Certified dimensional outline drawing including: a. Size., rating, and location of all customer connection. b. Approximate overall and handling weights. c. Overall dimensions, maintenance clearances, and dismantling clearances. d. Shaft centerline height. e. Dimensions of baseplates (iffurnished)complete with diameter, number, and locations of bolt holes and thickness of metal through whichbolts must , and recommended clearance, centers of gravity, and derails for foundation design. f. Location of silencers (if furnished). g. D i d o n of rotation.

2. Cross-sectional drawings and billof materials including: a. Joumal-bearing clearanees and tolerance. b.Rotor float (axial). c. Seal clearances (shafi and intcmd labyrinth) and tolerance. d.Lobeclearances. e. liming gear clearances.

--``,,,,,``,,``,`,,`````,,```,-`-`,,`,,`,`,,`---

3. Rotor assembly drawing including: a. Axial position from active thrust collar face to: l. Each lobe end. 2. Each radial probe. 3. Each joumal bearing centerline. 4. Phase angle notch. 5. Coupling faceor end of shaft b. Thrust-collar assembly details including: 1. Collar-shaft fit with tolerance. 2. Concentricity (or runout) tolerance. 3. Required torque for locknut. 4. Surface finish requirementsfor collar faces. 5. Preheat method and temperature requirementsfor “shrunk-on” collar instdlation. c. Dimensioned shaft end@) for coupling mounting(s). d. Bill of materials.

4. Thrust-bearing assembly drawing and bill of materials. 5. Journal bearing assembly drawing and bill of materials.

6. Seal assembly drawing and bill of materials. 7. Coupling assembly drawing and bill of materials, including allowable misalignment tolerances. 8. Seal-oil schematic including: a. Steady-state and transient oil flows and pressures. b. Control, alarm, and trip settings. c. Heat loads. d. Utility requirements including electrical, water, and air. e. Pipe, valve, and orifice sizes. f. Instrumentation, safety devices, and control schemes. g. Control valve Ç h. Bill of materials. 9. Seal-oil assembly drawing and list of connections. Arrangement including size, rating, and location Of all

customer connections. 10. Seal-oil component drawings anddata including: a. Pumpsand driven:

l . Certified dimensional outline drawing. 2. Cross-section and bill of materials. 3. Mechanical seal drawing and bill of materials. 4. Completed data forms for pumps and drivers. b. Overhead tank, reservou, and drain tanks: 1. Fabricationdrawings. 2. Maximum, minimum, and normal liquid levels. 3. Designcalculations. c. Coolers andfilters:



71

S T D * A P I / P E T R O STD bL9-ENGL L997

0732290 0 5 b 7 3 8 8 bTT

m

API STANDARD 619

72

1. Fabricationdrawings. 2. Completed data form foraler(s). d. Instrumentation: 1. Controllers. 2. switches. 3. Controlvalves. 4. Gauges.

11. Lube-oiUcontrol-oil schematics and bills of materials, includingthe following: a. Steady-state and transient oil flows and pressures. b. Control, alarm,and trip settings. c. Supply temperature andheat loads. d. Utility requirements including electrical,water, and air. e. pipe, valve, and orifice sizes. f. Instrumentation, safety devices, and controlschemes (including slidevalve if applicable). g. Control valve C, 12. Lube-oil assembly drawing including sz i e,rating, and location ofall customer connections. 13. Lube-oil component drawings anddata including: a b p s anddrivers: 1. Certified dimensional outline drawing. 2. Cross-section and bill of matera is l. 3. Mechanical seal drawing and bill ofmatera is l. 4. Performance curves for cenhfugal pumps. 5. Completed data forms for pumps and drivers. b. Coolers, filters, and memoir: l . Fabricationdrawings. 2. Maximum, minimum, and n d liquid levels in reservoir. 3. Completed data form for cooler@). c. Instnunentation: l . Controllers. 2. switches. 3. Controlvalves. 4. Gauges. 14. Oil separator arrangement drawing:

a outline drawing. b. Derails of intemals. c. ASME code calculations. 15. Injection-system schematic and bill of materials,including steady-state and transient flows and pressures at each use point. 16. Electrical and instrumentation schematics including: a Vibration warning and shutdown limits. b. Bearing temperatllrewarning and shutdown limits. c. Lube oiltemperatun waming and shutdownlimits. d. Billofmaterials.

17. Electrical and instrumendon arrangement drawing and listof connections. 18. Inlet capacity,brake horsepower, and dischargetemperahue versus compmsion ratio and speed shall be shown for each casing. Comp~sorswith variable speed driven shall have cuves for 80,90,100. and 105percent of

rate4lspeed. 19. Speed versus torque curve,including load inertia wherean electric motordriver is supplied. Both curves shall be shown onthe same

sheet.

20. Vibration analysisdata including: a Number of lobes. b. Number of pockets. C. Number of t e&, for gears and gear-type couplin@î. 21. Lateral critical analysis including

a Methoduscd. b. Graphic display ofbearing and s u p p t stiffness and its effect on criticalspeeds. c. Gmphic display of rotor responseto unbalance. d. Graphic display of overhung moment and its effect c on riticalspeed. --``,,,,,``,,``,`,,`````,,```,-`-`,,`,,`,`,,`---



S T D - A P I / P E T R O S T D bL9-ENGL 1797

0732270 0 5 b 7 3 8 9 5 3 b

ROTARYTYPE POSITIVE DISPLACEMENT COMPRESSORS FOR PETROLEUM, CHEMICAL,

AND


e. Journal static loads. f. Stiffness and damping coefficients. g. Tilting-pad geometly and configuration: 1. Padangle. 2. Pivotclearance. 3. Pad clearance. 4. Preload. 22. Torsional criticalspeed analysis including, but not limited to, the following: a. Methodused. b. Graphic display of mass-elastic system. c. Tabulation identifyingthe mass moment torsionalstiffness for each component in themass elastic system. d. Graphic display of exciting sources (molutions per minute). e. Graphic display of torsionalcritical speeds and deflections (modeshape diagrams).

23. Transient torsional analysis for all synchronous motor-driven units. 24. Allowable flange loading(s) forall customer connections including anticipated thermal movements referenced to a defined point. 25. An alignment diagram, including cold and msient alignments and recommended misalignment limits during

operation.

26. Weld procedures for fabrication and repair.

27.Hydrostatic test logs and gas leak test logs. 28. Mechanical run testlogs including, but not limited to, the following: a. Oil Bows, pressures,and temperatures. b. Vibration, includingX-Yplot of amplitude and phase angle versus revolutions per minute duringstartupand coastdown. c. Bearing metal temperatures. d. Observed critical speeds (if any). e. When specified, tape recordings of real-time vibration data. 29. Performance test logs and r e p t in accordance with ASME PTC 9.

30. Rotor balancelogs. including a residual unbalance repolt in accordance with Appendix F. 31. Rotor combined mechanical and electrical runout in accordance with4.7.3.6. 32. As-built datasheets.

33. As-built dimensions anddata including: a. Shaft or sleeve diameters at: l. Thrustcollar. 2. Each seal component. 3. Eachrotor. 4. Eachlabyrinth. 5. Each journal bearing. b. Each labyrinth bore. c. Each bushing seal component. d. Each journal-bearing inside diameter. e. Thrust-bearing axial runout f. Thrust bearing, journal bearing, and seal clearances. g. Metallurgy and heat treatment for: l . Shafts. 2. Thrust collars. 3. Hardness readings (whenH2Sis specified in process gas). 34.

Silencer drawingsand data including: a. Outlinedrawing. b. Data sheets including dynamic insertionlosses for each octave band, pressure losses, and materials of construction. c. ASME design calculations.

35. Intercoolers/aftercoolers drawings anddata including: a. Outlinedrawing. 36. Nondesuuctive test procedures and acceptance criteria as itemized on the purchase order data sheets or the Vendor Drawing and Data Requirements form. --``,,,,,``,,``,`,,`````,,```,-`-`,,`,,`,`,,`---


m


73

STD-API/PETRO STD bL7-ENGL L977

0 7 3 2 2 7 0 0 5 b 7 3 9 0 258

API STANDARD 619

74 ~

37. Rocedures for any special or optional tests (see 6.3.4).

39. Operating and maintenance manuals describing the following: a starr-up. b. Normal shutdown. c. Emergencyshutdown. d. operating limits, other operating restrictions, and a list of undesirable speeds from zero to trip. e. Lubeoil recommendations and specifications. f. Routine operational procedures, including recommended inspection schedules and procedures. g.Instructionsfor: l . Disassembly and reassembly of rotor in casing. 2. Rotor unstacking and restacking procedures. 3. Disassembly and reassemblyof journal bearings (for tilting-pad bearings,the instructions shall include gdno-go dimensions with tolerancesfor three-step plug gauges). 4. Disassembly and reassembly ofthrust beating. 5. Disassembly and reassembly ofseals (including maximum and minimumcleannces). 6. Disassembly and reassembly ofthrust collar. 7. Wheel reblading procedures. 8. Boring procedures and toque values. h. Performance data including: I. Curve showingcertified shaft speed versus site rated power. 2. Curve showing ambient temperature versus site rated power. 3. Curve showing output-powershaft speed versus toque. 4. Curve showingincremental power outputversus watedsteamsystem injection rate (optional). 5. Heat-rate correction f a a o (optional). ~ 6. M - b e a r i n g performance data i. Vibration analysis data, per items 20 to 23 above. j. As-buiit data, including: 1. As-built data sheets. 2. &-built dimensions or data. including assemblycl-ces. 3. Hydrostatic test logs, per item27 above. 4. Mechanical running testlogs, per item 28 above. 5. Rotor balancinglogs. per item 30above. 6. Rotor mechanical and electrical Nnout at each journal,per item 31 abox. 7. Physical and chemicalmill certificates for critical components. 8. Test logs of all specified optional tests. k. Drawings and data including: 1. Certified dimensionalo & i h w i n g and listof connections. 2. Cross-sectionaldrawing and bill of materials. materials. 3. Rotor assembly drawiigs and bills of 4. Thrust-bearing assembly drawing and bill of materials. bills of materials. 5. Joumal-bearing assembly drawings and bill of materials. 6. Seal-component drawing and 7. Lube-oil schematics andbills of materias. 8. Lube-oil assembly drawing and list of conneCti0nS. 9. Lube-oil component drawingsand data IO. Wecvical andinstrumentationschematicsand bills of materials. 11. Electrical and instrumentation assemblydrawings and list of connections. 12. Governor and control- and tripsystem data. 13. Trip and throttle-valve construction drawings. 40. Spare par& list with stockinglevel mmmendations, in accordance with7.3.5.

41. Progress reports and delivery schedule, including vendor buyouts and milestones.The reports shall include engineering, purchasing, manufaauring, and testing schedules for allmajor components. Planned and a u a l

dates and the percentage completed shallbe indicated for each milestone inthe schedule.



--``,,,,,``,,``,`,,`````,,```,-`-`,,`,,`,`,,`---

38. Installation manual describingthe following (see7.3.6.2): a. Storageprocedures. b.Foundationplan. c.Grouting details. d. Setting equipment, rigging procedures, component weights, and lifting diagrams. e. Coupling alignment diagram (per item 25 above). f. Piping recommendations, including allowable flange loads. g. Composite outline drawings for the driverldriven-equipment train, including anchor-bolt locations. h. Dismantling clexances.

ROTARYTYPE POSITIVE DISPUCEMENTCOMPRESSORS FOR PETROLEUM, CHEMICAL,

AND GAS INDUSTRY SERVICES

75

42. List of drawings, including latest revision numbers dates. and 43. Shipping list, including all major components thatwill ship separately. 44.List of special tools furnished for maintenance (see 5.9).

45. Technical data manual, includingthe following: a. As-built purchaser data sheets per item32 above. 29 above. b. Certified performance curves per item c. Drawings in accordance with 7.3.2. d. As-built assembly clearances. e. Spare parts list in accordancewith 7.3.5. f. Vibration data per item 20 above. g. Reports per items 21,22,23,25,28,29,30, and 31 above. h. API data sheets. 46. Material SafetyData S k u (OSHAt4Form 20).

47. Preservation,packaging, and shippingprocedures.

Wccupational Safety andHealth istration, U.S. Department of Labor, Washington, D.C.20402.



--``,,,,,``,,``,`,,`````,,```,-`-`,,`,,`,`,,`---

48. Bearing babbitt strength versus temperature curves.

S T D - A P I / P E T R O STD bLS-ENGL L997 M 0732290 05b7392 O20 H

APPENDIX D--TYPICAL SCHEMATICS FOR GENERAL PURPOSE OIL SYSTEM (DRY SCREW COMPRESSOR) AND FOR BASIC OIL SYSTEM [FLOODED SCREW COMPRESSOR] (INFORMATIVE) D.1GeneralNotes

isused,thepurchasermustmakeadditionalconnections among the separate groups.

D.l.l The schematics presented in this appendix illustrate the general philosophy and requirements of this standard D.2Legend for Schematics and typify commonly used systems for dry screw compresThe following legend is provided to facilitate interpretasors (Figure D-1)and for flooded screw compressors (Figure tions and understanding of the schematics presented in this D-2).The systems illustratedmay be modified as necessary appendix. Some of the abbreviations and symbols listed are and as mutually agreed upon by the purchaser and the venS5.1. dor to achieve a system or systems adequate for a particular from ISA15 application. AS air supply Note:The default oil system for dry screw compressors is an API 614 special electric supply ES purpose oil system (Paragraph 4.10.3). The oil system shown here is a genFCV flow control valve eral pupose, -specified alternative to the Ml 614 system. FG flow gas D.1.2 Instrument piping and valving details are not shown flow restriction orifice F0 on most of the schematics; however, these details are illusH-P high pressure trated in Figures D-9A through D-91 and shall apply unless LC level controller otherwise specified. level glass LG LI level indicator 0.13 When specified by the purchaser or when necessary LIC level-indicating controller for the conditions and functions involved, equivalent transL-P low pressure mitters (pilot operators) with suitable separate control valves high-level switch LSH shall be substituted for the direct-acting control valves shown very high level switch LSHH on the schematics. The transmitter controller schemes illuslow-level switch trated show pneumatic transmission; actual transmission shall LSL very low level switch LSLL be pneumatic, hydraulic, or electric as specified by the purLT level transmitter chaser. LV loop-actuated level control valve D.1.4 External control connections are shown on the conrelay in level control loop LY trol valves to illustrate more clearly the intended functionof direct-acting pressure control valve PCV the system. Where applicable and when permitted by the purdirect-acting differential-pressure control valve PDCV chaser, these control valves may be of the self-contained type PD1 pressure differential indicator without external connections. high-differential-pressure switch PDSH D.1.5 Relief valves are illustrated as angle-type valves, the PDSL low-differential-pressure switch mostcommonpattern.Astraight-throughpatternmay be PDSLL very low differential-pressure switch used if it is adequate for the required service conditions. PI pressure indicator PRV pressure-regulating (relief) valve D.1.6 Reliefvalveswhosesolepurpose is toprotect PSH high-pressure switch blocked-in equipment (for example, coolers or filters) from PSL low-pressure switch thermal expansion are not shown but shallbe supplied when PSV pressure safety (relief) valve specified by the purchaser. The purchaser shall THERM mark PV loopactuated pressure control valve outside the relief valve symbol on the schematic when the PY relay in pressure control loop relief valve is for protection from thermal expansion only. SS steam supply D.1.7 FiguresD-9B, D-9C,andD-9D representdesigns TC temperature controller which permit alarm and trip switchesbetoisolated for testing TCV direct-acting temperature control valve while the system is in operation. TI temperature indicator D.1.8 The purchaser’sconnectionsshownarebasedona ISISA,P.O. Box 12277, ResearchTriangle Park,North Carolina 27709. console arrangement.When a multiple-package arrangement 77

--``,,,,,``,,``,`,,`````,,```,-`-`,,`,,`,`,,`---



S T D = A P I / P E T R O S T D bL7-ENGL L777 m 0732270 05b7373 T b 7 API STANDARD 619

78

D.3 Symbols f

Actuator, diaphragm Actuator, diaphragm, with hand jack Actuator, differential-pressure diaphragm

(HOAI

ØF l

Piping, gas andoil

' \

Reducerswage or nipple

Actuator, solenoid

Spectacle blind

Connections by purchaser

Trap

Control switch,manual,withhandoff automatic positions

*

Coupling,continuouslylubricated

n u

Lr'

--``,,,,,``,,``,`,,`````,,```,-`-`,,`,,`,`,,`---

e

Tubing,capillary (filled system) Valve, atmospheric breather Valve, check

Device, purging valve, gateor vabe, two-way actuator-operated

I

d

Flange, blind,

or plug

Flow indicator, rotametertype Instrument: combined arrangement Valve, pressure control Instrument: extemalb connected

O

33 e 8 ""_

Instrument: bcaity mounted

&

Valve, relief

FC

Ports failing closed

FI

Ports failing indeterminately

FL

Ports failinglocked in position

F0

Ports failing open

Instrumenta pad-mounted(flush) hwrument: panemounted Instrument: single, with two functions tine, electrical tine, hydraulic

+,

tine, pneumatic Valve, three-port, for actuator

++-

tine, strainer, y-type

@

Manual-reset feature

Valve, six-port continuous-flow transfer, manually operated

"Lettersinside the balloon indicatethe instrument's function.



STD-API/PETRO STD bL9-ENGL L997 E 0732290 05b737V 9T3

ROTARY TYPE POSITIVE DISPLACEMENT

module

COMPRESSORS FOR PETROLEUM, CHEMICAL, AND GASINDUSTRY SERVICES

Seal oil system for equipment with double mechanical (Figure D-7)

seals

I

(Figure D-8)

' I

u

4

I

79

P

Oil returnto reservoir

v

Oil supply header

Reservoir (Figure D-3)

Coolerslfilters (Figure D-6)

Oil pumps (Figure D-5)

A

Figure D-l-General Purpose Oil System forDry Screw Compressor

Process gasin

1

b

($::1 :

i

I,

Flooded compressor (Appendix

K)

(see note)

Coolers/filters (Figure D-6)

to separator

Oil pumps (Figure D-5)

Note: Figure D-7 may be used for flooded compressors with a double mechanical seal.

Figure D-2-Basic Oil System for Flooded Screw Compressor



--``,,,,,``,,``,`,,`````,,```,-`-`,,`,,`,`,,`---

Injection Lubekeal oil

API

80

I

STANDARD 619

Slopeddegasificationtray

Minimum operating level I

L"_

"L " " "_

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k

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Altemative arrangement (see Note1)

I ,"j

Note 3)

See Note 4

n

Manways I I

T

Open top

Filter-breather cap (see Note 5)

/

Fill opening with strainer

T

Individual nonpressurized returns (see Note 1) extemal-type float Minimum operating level

Pump suction loss level

"-

Elecm'c

U

Pump suction-Iconnections Twotapped~c grounding (see Note11)

Conditioner suction connection

Electric heater (see Note 8)

(

Steam heater (see Note

1O)

-

"D<1I

\

-I -I

\. \

Blind-flanged connectiondrain

1

Baffle attachedto stilling tubes and pressurizedoil returns to prevent stirring of bottom sediments (see Note 12)

Notes: 1. For nonpressurized gravity oil return lines and fill openings, a stilling tube or sloped &gasificationtray arranged to prevent splashingand provide r e l e a s e offoamandgas is required for every return inlet and spare connection. 2. A blind flange shall be provided for ventingthe reservoir. For seal oil reservoirs. this vent shall be piped to a safe location by the purchaser. 3. Option D3a: The purchaser may specify a particular oil conditioner and other pressurized oil returns in addition to thespare top connection. 4. Purge and ventconnections shall enter the top of the reservoir. No extension tubesor seals are permitted. 5 . A filter breathercap is notpermitted on a reservoir containingseal oil.

6.An internal-type float shall be protected by a staticconducting shield. 7. Option D-3b The purehaser may speeiry a siphon breakerwhen an oil conditioner suction connectionis specified. 8. Option D-3c:The purchaser may specify an electric heater. 9. Option D3d: The purchaser may specify an oil conditioner suction connection. IO. Option D-3e:The purchaser may specify a steam heater. 1 l . Option D-3f: When specified, two tapped grounding pads positioned diagonally to each other shall be provided. 12. Individual oil returns shall be located away from the pump suction and arranged to provide themaximum residence time.

Figure D-3-Oil Reservoir



STD.API/PETRO STD blS-ENGL L777 m 0732270 O5b737b 77b ROTARY TYPEPOSITIVE DISPLACEMENT COMPRESSORS FOR PETROLEUM, CHEMICAL,


81

Discharge gas outlet connection

-i-

I.

-

Impingement plate

Coalescers oil

drain

4 I Oil fill "

Baffle

\

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4

-

I

Oil drain hole

l

I

41

Gas and oil from compressor(s)

Oil conditioner return

I

1

-

I

Minimum operating level

I

I

I

I

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See Note 4

See Note 1 il conditioner supply

"""_

Electric See Note 2

" " "

heater-1

"

/-/

-

/ /

breaker Notes: l . The purchaser mayspecify an oil conditioner. 2. The purchaser may specify an electric heater. 3. The separator may be either vertically or horizontally oriented. 4. Internal float-type switches shall not be used. The purchaser m a y also specifya low-low (LSLL) level trip switch.

Figure D-4--0il Separator



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S T D - A P I / P E T R O S T D bL7-ENGL L797 m 073Z270 05b7397 h02 m a2

API STANDARD 619

-

To downstream equipment

L

To start

LIndividual

/

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return lines to reservoir or separator

Pump running

W G 1

7

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”

”

x

7 Return line to reservoir or separator

Pumpsuctionh resemir or separator

Notes: 1. The pressure relieving valve and the dm-acting by pressure control valvecircuit are omitted for centrifugal pumps. 2. Option D-5a: The purchaser may specify a by valve to start.

3. Option P 5 b The purchaser mayspecify an additional switch to start the standby pump (seeFigure D-5). 4. Option D-5c: The purchaser may specify a standby pump. 5. For centrifugal pumps, the line strainers are omitted and temporary screens are provided.

6. m o n D-5d For positive displacement pumps,the purchaser may specify an auxiliary emergency suction l i from the reservoir to the main or standby pump. 7. A main oil pump may not be required for flooded system where the separator pressure is sufficientto circulate the oil. In such cases,the supplier shall furnish a start-up circulation pump. 8. The direct-acting by control valveis a pressure differential control valve whenused in a flooded compressor oil system (i.e., a system witha pressurized oil separator).

Figure D-%Primary (Centrifugal or Rotary) Pump Arrangement



STD.API/PETRO S T D bL7-ENGL 1777

0732270 0 5 b 7 3 7 8 547

m

ROTARY TYPEPOSITIVE DISPLACEMENT COMPRESSORS FOR PETROLEUM, CHEMICAL, AND GASINDUSTRY SERVICES

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Cooler

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Oil in Notes: l. Option D6a: The purchasermay specify tight shutoff requiring spectacle blinds. 2. Option D-6b: The purchaser may specify a high-temperature switch (TSH) and/or a low temperature switch(TSL). 3. Option D-6c: The purchaser may specify a by oil line andlor a constant temperature control valve temperature controller. 4. Option D-6d: If the fail-closed (FC) feature of the direct-acting temperature control valve is not acceptable, the purchasermay specify a valve with a fail-locked (FL) feature.

Figure D-&Twin


5. Option D-k. The purchaser may specifya constant-temperaturethreeway control valveas an alternative. 6. Provision may be required to ensure adequate lube- and/or control-oil pressure whenthe seal oil supply pressure is low relative to the lube- and/ or control-oil pressure, or to maintain the required oil-pressure differential above the cooling water pressure. 7. Option D-6F The purchaser may specify a standby oil cooler with transfer valve. 8. Option D-6g: The purchaser may specify dual 3-way valves (with mechanical linkage)as an alternative to the transfer valve.

Oil Coolers and Filters WithSeparate Continuous-Flow Transfer Valves Document provided by IHS Licensee=BP Amoco/5928366101, =, 03/18/2003 01:22:58 MST Questions or comments about this message: please call the Document Policy Management Group at 1-800-451-1584.

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STD-API/PETRO STD bL9-ENGL L797 II 0732290 0 5 b 7 3 7 9 V85 I API STANDARD 619

a4

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8

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Notes: 3. Option D-7a: Switch to a l a m or trip or both. 1. Each direct-acting diffmntial-pressure control valve must be refer4. Option D-% Flow restriction orifice. e n d to sense the working fluid pressure acting the at conespondhg me5. This figure depicts a rotor with two shaft end-scals. A dry screw comchanical seal. havewill pressor two such rotors (total of 4 seals). A compressor flooded 2. Block and by valves may be omitted if the equipment is spared. will have two rotors, but will only have one mechanical seal.

Figure D-7-Seal-Oil Circulation System for EquipmentWith Double Mechanical Seals

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ROTARY TYPEPOSTIVE DISPLACEMENT COMPRESSORS FOR PETROLEUM, CHEMICAL,

From equipment outer seal drains, control-oil drains, and the like, as necessary


85

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i

Notes: l . Option D-Sa: An oil drain high-temperatureswitch may be specified. 2. If required by the motor design,all connections shallbe electrically insulated. 3. These componentsm a y be located on the gauge board.

Figure D-8-Lube-Oil Module at Equipment-Dry Screw Compressors



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STD=API/PETRO STD bLS-ENGL 1 7 9 7 R 0732270 05b7110L 963 API STANDARD619

86

See Notes 1-3

I

Notes: 1. Option D-9a: If approved by the purchaser. a combination block and bleed gauge valve maybe substituted for individual block and vent-bleed valves, except as specified in Note 2. 2. Option D-9b: Unless otherwise specifiedby the purchaser, block and vent-bleed valves shall be omitted for all instruments in trip service. 3. For services of less than or equal to 14 bar effective(200pounds per square inch gauge), bleed valves maybe omitted, except for the arrangements shown in Figures D-9B and D-9C or when Note2 applies.

F - I '

Service line

Figure D-SA-Instrument Piping Details: Pressure Gauges, Switches, and Transmitters

Alarm@) To reservoir or drain line Note: The block valvemay be locked open.

Service line

'

Figure D-SB-Instrument Piping Details: Combined Instrument System for Low-Pressure Alarms and Pump-Start Switches nypical Design)

Alarm@)

To reservoir

or drain line

Notes: 1. Option D-9c:This design is intended for cold climates and for pump-running dann switches(high-pressure switches). 2. Option D-3d:The purchaser may specify a block valve. The block valve maybe locked open.

Figure D-SC-Instrument Piping Details: Combined Instrument System for Low-Pressure Alarms and PumpStart Switches (Alternative Design)



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STD-API/PETRO STD bLS-ENGL B197

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0732270 05b7q02 8 T T

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To reservoir or drain line

See note

AND GAS INDUSTRY SERVICES

Service line

Figure D-SD-Instrument Piping Details: Low-Pressure Trip Switch (Alternative Design)

C

A

*I

Notes: 1. Unless otherwise specified by the purchaser, blockand ventbleed valves shallbe omitted for all instruments in trip service. 2. For services of less than or equal to 14 bar effective (200 pounds per square inch gauge), bleed valves may be omitted. except for the arrangements shownin figures D-9B and D-9C or when Note 1 applies. 3. Valve porting shall be as follows:

SeeNote 2

Position

B

1

?

2 3

2

Connected A. C None B, C

Closed B A, B, C A

It shall notbe possible to connect Port A to Port B.

Figure D-SE-Instrument Piping Details: Single Pressure Gaugefor Differential-Pressure Use --``,,,,,``,,``,`,,`````,,```,-`-`,,`,,`,`,,`---

Signal

To reservoir

See Note

2

Notes: 1. A diaphragm actuatoris not required for air signals unless other devices are receiving the same signals. 2. The reservoir and flow restriction orifice are for oil service.

Figure D-SF-Instrument Piping Details: Diaphragm Actuator



STDmAPIIPETRO S T D

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See note

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Note: This connection may be added to facilitate cleaning of the level indicator.

Figure D-9H-Instrument Piping Details: Externally Connected Level Instruments

See Notes 1 and 2

1

\ Source B

I

Notes: l. Unless otherwise specified by the purchaser, blockand vent-bleedvalves shall be omitted for all instruments in trip Service. 2. For seMces of less than or q u a l to 14bar effective (200 pounds per squaxe inch gauge), bleed valves may be omitted, except for the anangements shown in figures D9B and D9C or when Note 1 applies.

1

Figure D-9l-Instrument Piping Details: Differential Diaphragm Actuators, Indicators, Switches, and Transmitters



S T D = A P I / P E T R O S'TD b L 9 - E N G L

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APPENDIX E-INTERNATIONAL STANDARDS (INFORMATIVE)

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CAUTION: A listing in the cross-reference table does not imply that the corresponding standardis equivalent to the American standard. It is the responsibility of the purchaser and the vendor to that the specified standard meets or exceeds the requirements of the standard listedUSA. under



S T D API/PE’l‘RO

ST]) bL1-ENGL

507

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ROTARYTYPEPOSITIVE DISPLACEMENT CoMPRESORS FOR PETROLEUM, CHEMICAL, AND GASINDUSTRY SERVICES

91

Table E-1-International Standards and Referenced Publications Application and

Shaft Housing Fits and Radial

International Great Britain IS0 AFNOR DIN BSI

USA

forABMA Memc

STD 9 ABMA 28

Metric Beitrings Boundary Dimensions

ABMA STD 20

Gears

AGMA

Classification of Electrical k e a in RP Petroleum Refineries

API

Sizing, Selection and Installation of

API RP 520

I

I

Part 5512 662

NF IS0 B1519 B1518, 281

76

5OOA

5753.15.492 6107

Part 3

5345 Part2

49 ED-PUBL IEC 79

NF IS0B1515, 5753

B1515 B1514.Bl520

NF-S

RIIS-TR-79-1 RIIS-TR-85-1

Pressure Relieving Devices Quality Improvement Manual

API RP 683

Flanged Steel Safety Relief Valves

API STD 526

Form-Wound Squirrel Cage Induction Motors 250 HP andLager

API STD 5 4 1

Form-Wound Brushless Synchronous Motors

API STD 546

General Purpose Steam Turbimes

1

API1STD 61

Special Rupose Steam Turbines

API STD6l2

Special Purpose Gears

API STD 613

132 4312O436

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Special Purpose Oil Lubrication 48W 24425 API 10438 STD 614 Systems Shell and Tube Heat Exchangers

API STD 660

Air-cooled Heat Exchangers

API STD 661

Vibration, Axial Position and Bearing Temperature Monitoring Systems

API STD 670

Special Purpose Couplings

API STD 67 1

General Purpose Gears

API STD 677

screw Threads

ASMEB 1.1

Pipe Threads, GeneralPurpose

ASME B 1.20.1

Cast Iron Pipe Flanges and Flanged Fittings

ASME B 16.1

Pipe Flanges and Flanged Fittings

ASME B 16.5

Forged Fittings, Socket-Welding and Threaded

ASME B 16.11

Ductile lron PipeFlangesandFlangedASME Fittings


80401, B1566

Part I 5646Part2

5646286-1,286-2

Load Ratings and Fatigue Life, Ball Bearings

NFE 22396

5446

2982,2983 STD5425 7

Japan JIS

IS0 2372 IS0 3945

VD1 20% VD1 2059

4675

NFE 90300 NFE 90301

B 16.42


Table E-1-International Standards and Referenced Publications Application

Keys and Keyseats

ASME B 17.1

chemicalPlant and Petroleum Refinery ASME B 31.3 Piping Nondestructive Examination

ASME Boiler and Pressure Vessel code Section V

RessureVesSels

ASME Code Section V111 Division 1 & 2

Welding and Brazing Qualifications

ASME Code Section

IX Power Test Code for Displacement Compressors, Vacuum Pumps and Blowers

ASME PTC-9

Line Conventions and Lenering

ASMEY 14.2M

128, 31, 129,3098

308 piut 2&3

NFE 04202/203

4780/1/2

NFP 22471

Code of Japan Wdding EngiIKmingSOciety

NFC 02-205u

m c8001

Method for Evaluating the MicrostructureASTMA 247

of Graphite in Iron Castings Recommended Practice for Ultrasonic Examination of Heavy Steel Forgings

ASTM A 388

Guide for Radiographic Testing

ASTM E 94

Reference Photographsfor Magnetic particle Indications on Ferrous Castings

ASTM E 125

Method for ControllingQuality of Radiog~aphicTesting

ASTM E 142

Practice for Magnetic Particle . . Exarmnatlon

ASTM E 709

structuralwelding Code-steel

AWS D 1.1

Swere Duty TEFC SquinelCage Induction Motors upto 500 HP

IEEE 841

Corrosion Resistant Material Requirements

NACE

Steam Turbines for Mechanical Drive service

NEMA SM23

National Electrical Code

NFPA 70 f i c l e s 500,501,502.504

Bala& Classification for Flexible Couplings Tubular Heat Exchangers

IEC 79

IS0 1940

TEMA

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APPENDIX F-PROCEDURE FOR DETERMINATION OF RESIDUAL UNBALANCE (INFORMATIVE) F.l Scope

rotor. the around theheavy known Addlast the trial to weight spot in one plane. If the rotor has been balanced very preThis appendix describes the procedure be to used to detercisely and the final heavy spot cannotbe determined, add the mine residual unbalance in machine rotors. Although some trial weight to any one ofthe marked radial positions. balancingmachinesmaybesetuptoreadouttheexact amount of unbalance, the calibration can be in error. The onlyF.4.2.3 To that an appropriate trial weight has been sure method of determining residual unbalance isto test the selected, operate the balancing machine and note the units of rotor with a known amount of unbalance. unbalance indicated on the meter. If the meter pegs, a smaller trial weightshould be used. If little or no meterreading F.2 Definition results, a largermal weight should beused. Little or no meter Residual unbalance is the amount of unbalance remaining reading also generally indicates that the rotor was not balanced precisely enoughor that the balancing machine is not in a rotor after balancing. Unless otherwise specified, it shall sensitive enough.If this occurs, the balancing machine can be be expressed in ounce-inches or gram-millimeters. checked for sensitivityby using the procedure outlined in F.5 and Figure F-1.A completed example is shown in Figure F-2. F.3 MaximumAllowableResidual

Unbalance F.3.1 The maximum allowable residual unbalance plane shall be determined per 4.7.3.2.

per

F.32 If the actual static weight load on each journal is not known,assumethatthetotalrotorweightisequally sup

F.42.4 Locatetheweightateachoftheequallyspaced positions in turn, and record the amount of unbalance indicated on the meter for each position. Repeat the initial position as a check. All verification shall performed be usingonly one sensitivity range on the balance machine.

F.42.5 Plot the readings on the residual unbalance work sheet and calculate the amount of residual unbalance (see Figue F-3). The maximum meter reading occurs when the trial weightis added at the rotor's heavy spot; the minimum reading occurs when the trial weight is opposite the heavy F.4 ResidualUnbalanceCheck spot. Thus, the plotted readings should form an approximate circle (see Figure F-4). An average of the maximum F.4.1 GENERAL and minimum meter readings represents the effect of the F.4.1.1 m e n the balancing-machine readings indicate that trial weight. The distance of the circle's center from the Oritherotorhasbeenbalancedtowithinthespecifiedtolerance,ginofthePolarPlot represena the residual unbalance in aresidualunbalancecheckshall be performedbeforethethatPlane. rotor is removed from the balancing machine. F.4.2.6 Repeatthestepsdescribedin F.4.2.1 through e F.4.1.2 To checkresidualunbalance,a known trial weight F.4.2.5 for eachbalanceplane. If thespecifiedmaximum has been exceeded in any isattachedto the rotor sequentially in six (or twelve, if speci- allowable residual unbalance fied by the purchaser) equally spaced radial positions, each at balance plane, the rotor shall be balanced more precisely the same m%us.The check is run in each COrrection Plane, and checked again. If a correction is made in any balance and the readings in each plane are plotted on a P P h using plane, the residual unbalance check shall be repeated in all Specified procedurethe F.4.2. planes. ported by the bearings* For a mebearing rotor weif#% 29720 (63000POundS) be assumed to impose a static weight load Of (3,000 pounds) on each journal.

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19360

F.4.2 PROCEDURE

F.5 Balancing-MachineSensitivity Check

F.4.2.1 Select a trial weight and radius that willbe equivalent to between one and times the allowable residual unbalance [that is, if u,, is 1,440 gram-millimeters (2 ounce-inches), the trial weight should Caux 1,440 to 2,880 gram-millimeters (2 to 4 ounce-inches of unbalance.)]

F.5.1 Using the maximum allowable residual unbalance (urna) determined for the specific rotor being tested, Prepare trial weighs for U " l c e factors of '/2urnanr 1uma*2urnax, and 4Urn,.

F.42.2 Starting at the last known heavy spot in each correction plane, mark off the specified number of radial positions (six or twelve) in equal (60- or 30-degree) increments

F 5 2 Sequentiallyinstalleachtrialweightatthephase angle of unbalancefortherotorbeingtested.Recordthe balancing-machine readings on the form shown in Figure . F-1 101



~

STD*API/PETRO STD bL7-ENGL L777 m 0732290 0 5 b 7 4 L b 394 m API STANDARD619

102

F.53 Plot the readings on thegraphshowninFigure F-l. F.5.4 Thefollowingthreeoptions are available whenresults of the balancing-machine sensitivity check are unacceptable: Then draw a best-fit straight line through the four points. If the line intersects the vertical axis below l/zU,,,ax, the balanca. Have the balancing in accordancewith, ing machine is sensitive enough, rotor the and should be the and repeat the sensitivity rebalanced using the residual unbalance verification proceb. Use a more sensitive balancing machine. dure. (See Figure F-2 for an example plot.) If the line interis c. Perform thesensitivitycheckatthebalancingmachine's sects the vertical =is abve I/~U-, the balancing highest allowable speed. This speed must thenbe used when not sensitive enough, and the results are unacceptable. the rotor is balanced.

I

U,, factors

Balancing-machine readouta

'Use balancing-machine readouts to scale graph.

Figure F-l-sensitivity Check Work Sheet

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S T D = A P I / P E T R O S T D bLS-ENGL L777

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0732270 0 5 b 7 9 1 7 220

m

ROTARYTYPEPoSrrlvE DISPLACEMENT COMPRESSORS FOR PETROLEUM,CHEMICAL, AND GASINDUSTRY SERVICES

U,, factors Balancing-machine

readouta

urna

5.1

1~ l n a z

10.1

'12

I

4uma.x

40.1

Wse balancing-machine readoutsto scale graph.

Figure F-24ensitivity Check Work Sheet

--``,,,,,``,,``,`,,`````,,```,-`-`,,`,,`,`,,`---



103

API STANDARD619

104

Equipment (Rotor) No.: Purchase OrderNo.: Correction Plane (inlet, drive-end, etc.-use sketch): Balancing Speed: &Maximum Allowable Rotor Speed: &Weight

U,, = Maximum Allowable Residual Unbalance = (see 4.7.3.2) 6 , 3 5 0rpm; ~ kg/ 4 x rPm lbs/

gm-mm (oz.-in.)

Trial unbalance(2 x U

gmmm (oz.-in.)

Ø?-Raduis

nches

of Journal (closest to this correction plane):

,

mm (inches)

(at which weight will be placed):

Trial Unbalance Weight= Trial Unbalance/Ø7 oz.-in./ mm; gm-mm/ Conversion Information: 1 ounce = 28.350 grams

Test Data

I

Position

1 Phase Angle

Rotor Sketch

I

Amplitude

I

5 6

Test Data-Graphic Analysis

Step 1: plot data on the polar chart (Figure F-3contiwed).Scale thechart so the largest and smallest amplitude wil fit conveniently. Step 2: Wrth the cam,d m the best fit arde through thesix points and mark the center of this circle. Step 3: Measure the diameter of the arde inunits of scale chosen in Step 1 and record. units Step 4: Record the trial unbalance from above. (oz.-in.)gm-mm Step 5: Double the trial unbalance in Step 4 ( m a y us8 the gm-mm twice unbalance). a m a l residual (oz&.) Step 6: Divide the answer in Step 5 by answer the in Step 3. Scale Factor You now have a conelation between the units on the polar chart and the gm-in. of actual balance. ~-

Figure F->Residual Unbalance Work Sheet --``,,,,,``,,``,`,,`````,,```,-`-`,,`,,`,`,,`---



S T D - A P I / P E T R O S T D bL9-ENGL L997 m 0732290 0 5 b 7 4 L 9 U T 3

ROTARYTYPEPOSITIVE DISPLACEMENT CoMPRESSORS FOR PETROLEUM, CHEMICAL, AND GASINDUSTRY SERVICES

105

O"

goo --``,,,,,``,,``,`,,`````,,```,-`-`,,`,,`,`,,`---

270"

180"

The circle you have drawn must contain the origin of the polar chart. If it doesn't, the residual unbalance of the rotor exceeds the applied test unbalance. Proceed with the balancing machine sensitivity check before rebalancing is attempted. If the circle does contain the originof the polar chart, the distance between origin of the chart and the center of your circle is the actual residual unbalance present on the rotor correction plane. Measure the distancein units of scale you choosein Step 1 and multiply this number by the scale factor determined in Step 6. Distance in units of scale between origin and center of the circle times scale factor equals actual residual unbalance.

dual

actual

Record Record allowable residual unbalance (from Figure

F-3)

Rotor for Correction plane BY

No.

(am-mm)(oz.-in.) (hashas ed.not)

Date

Figure F-"Residual Unbalance Work Sheet (Continued)



ed:

API STANDARD 619

106

No.:

Equipment

G107

Purchase OrderNo.: drive-end, sketch): etc.-use (inlet, Correction Plane

A

Balancing Rotor Allowable N-Maximum &Weight

ofcorrection Journal this (closet to plane):

800

rpm

70,000

rpm

.

908

kg (lbs)

Umm-Maximum Allowable Residual Unbalance= 6350 WAI (4 W/N) € % Q Q q x ~ ; 4 908 x lbs/ 70,000 rprn

0.36

gm-mm (oz.-in.)

Trial unbalance(2 x Umd

0.72

gm" (oz.-in.)

R-Radius {at which weightwil be placed):

6.875

m (in.)

Trial Unbalance Weight =Trial Unbalance/R 0.72 oz.-in./ 6.875 inches

O. 70

ft (oz.)

,-".'u~"".Y

Conversion Information:1 ounce = 28.350 grams

Rotor Sketch

Test Data

A

c-1o1

Test Data-Graphic Analysis Step 1: Plot data on the polar chart (Figure C-2 continued). Scale the so chart the largest and smallest amplitude willfit conveniently. fit circle through the six points and mark the center of this circle. Step 2: With a com, draw the best Step 3: Measure the diameter of the circlein units of scale chosenin Step 1 and record.

35

Step 4: Record the trial unbalance from above. Step 5: Double the trial unbalance in Step 4 (may use unbalance). residual actual the twice the answer Step in 5 by the answer in Step 3. Step 6: Divide

units

O. 72

g f w t w (oz.-in.) ~

7.44

g f f t - l f f f f ) (oz-in.)

0.047

Scale Factor

You now have a correlation between the units on the polar chart and the gm-in. of actual balance.

Figure F"-Sample Calculations for Residual Unbalance --``,,,,,``,,``,`,,`````,,```,-`-`,,`,,`,`,,`---



STD-API/PETRO STD bLS-ENGL

0732270 05b742L 751

L797

m

ROTARY TYPEPOSITIVE DISPLACEMENT CoMPRESSORS FOR PETROLEUM, CHEMICAL, AND GASINDUSTRY SERVICES

107

O'

90"

270'

180'

The circle you have drawn must contain the origin of the polarIf chart. it doesn't, the residual unbalance of the rotor exceeds the applied test unbalance. NOTE: Several possibilities for the drawn circle not including the of origin the polar chart include: operator error during balancing, a fautty balancing machine-pickup or cable, or the balancing machine is not sensitive enough. If the circle does contain the origin of the polar chart, the distance between origin of the chart and the centerof your circle is the actual residual unbalance present on the rotor correction plane. Measure the distancein units of scale you choosein Step land multiply this number by the scale factor determined in Step6. Distance in units of scale between origin and center of the circle times scale factor equals actual residual unbalance.

Record actual residual unbalance

5 (0.041) = 0.21

Record allowable residual unbalance (from Figure Correction plane BY

A

22)

Rotorfor

John Inspector

No.

Date

(gm-mm)(oz.-in.)

O. 36

(gm-mm)(oz.-in.)

c-101

(has/hs-&) ed.

11-31-94

Figure F-&Sample Calculations for Residual Unbalance (continued) --``,,,,,``,,``,`,,`````,,```,-`-`,,`,,`,`,,`---



S T D - A P I I P E T R O S T D bL7-ENGL L777

0732270 05b7422 h78 9

APPENDIX G-FORCES AND MOMENTS (NORMATIVE)

General

units: In U.S. Customary

The April 1988, November 1979, and October 1973 issues of this standard referred nozzle forces and moments calculations to appropriate NEMA documents with the stipulation thatthe constants intheequations be multiplied by1.85. Experience has shown that there has not been a uniform interpretation of “1.85 times NEMA.” Therefore, the equations have been adapted to compressors by identifying all the constants and clarifying that the equivalent of the exhaust nozzle in the NEMA calculation is the largest compressor nozzle. This is usually, but not necessarily,the inlet nozzle.

G.2 Equations

D, = (16 D”)(inches) 3 +

Where: D, = equivalent pipe diameter of the connection,in millimeters (inches). D,,, = nominal pipe diameter, millimeters in (inches). b. The combined resultantsof the forces and moments of the inlet, sidestream, and discharge connections resolved at the centerlines of the largest connection should not exceed the following:

--``,,,,,``,,``,`,,`````,,```,-`-`,,`,,`,`,,`---

G.l

The design of each compressor body must allow for lim1. The resultants shall notexceed ited piping loads on the various casing nozzles. For maximum system reliability, nozzle loads imposed by piping should be F, + 1.64 M,I40.4 ((3-2) D, as low as possible regardlessof the compressor’s load-canying capability. As a standard, the forces and moments acting In US.Customary units: oncompressors due to the inlet, sid-stream, and discharge connections shouldbe limited by the following: 2F,+ M,I 4 6 2 D, a. Thetotalresultantforceandtotalresultantmoment Where: imposedon thecompressorat anyconnectionshouldnot F, = combined resultantof inlet, sidestream, and disexceed the values shown in Equation G- l. charge forces,in Newtons (pounds). M, = combined resultantof inlet, sidestream,and disF, + 1.09 M,554.1 D, (G-1) charge moments, and moments resulting from forces, in Newton-meters (pound-feet). In U.S. Customary units: D, = diameter [in millimeters (inches)] of one circular opening equal to the totalareas of the inlet, side3F, + M, I927 D, stream, and discharge openings.If the equivalent nozzle diameter is greater than 230 millimeters Where: (9 inches), usea value of D, equal to: F, = resultant force, inNewtons(pounds).(SeeFigure - (460 + Equivalent diurnerer)(millimeters) G-1.) 3 F, = In U.S. Customary units:

,/v

- ( 18 + Equivalenr diarnerer)(inches)

M, = resultant moment, in Newton-meters (foot-pounds) from FigureG- l.

M, = For sizes up to 200 millimeters

3

,/m

2. Theindividualcomponents(FigureG-1) resultants should not exceed:

(8 inches) diameter: in

D, = nominal pipe diameter of the connection, in millimeters (inches).

F, = 16.10,

M,= 24.60,

F, = 40.50, F, = 32.40,

My= 12.30, M,= 12.30,

In U.S. Customary units:

For sizes greater than 200 millimeters (8 inches), use a value

F, = 920, Fy= 2310, F, = 1850,

Of:

M,= 4620,

M y= 23 D, 1 M,= 23 D, 1

1o9 COPYRIGHT 2003; American Petroleum Institute


ofthese

API STANDARD 619

110

Parallel to

Compressor Shaft

Figure G-l-Combined Resultantsof the Forces and Momentsof Corrections Where:

F,= horizontal componentof F, parallel to the compressor shaft,in Newtons (pounds). Fy= vertical componentof F,,in Newtons (pounds). F,= horizontal component of F, at right angles to thecompressorshaft, in Newtons(pounds). M,= component of M,aroundthehorizontal axis, in Newton-meters (foot-pounds). expected operating My=component of M, around the vemcal axis, in Newton-meters (foot-pounds). M,= component of M,around the horizontalaxis at right angles to the compressor shaft, in Newton-meters (foot-pounds).


allowable c. These of values forces moments and pertain to thecompressorstructure only.They do no pertain to the forces and moments in the connecting pipes, flanges, and flange bolting, which should not exceed the allowable stress as defined by applicable codes and regulatory bodies. Loads may be increasedbymutualagreementbetweenthe purchaserand vendor.However,it is recommendedthat loads be minimized.


--``,,,,,``,,``,`,,`````,,```,-`-`,,`,,`,`,,`---

I I

'STD-API/PETRO S T D bL7-ENGL L777 W 0732290 05b7V24 '4bO

--``,,,,,``,,``,`,,`````,,```,-`-`,,`,,`,`,,`---

APPENDIX H-NOMENCLATURE FOR EQUIPMENT (INFORMATIVE)



ROTARYTYPEP o s m v E DISPLACEMENT COMPRESSORSFOR PETROLEUM, CHEMICAL, AND GASINDUSTRY SERVICES

--``,,,,,``,,``,`,,`````,,```,-`-`,,`,,`,`,,`---



113

--``,,,,,``,,``,`,,`````,,```,-`-`,,`,,`,`,,`---

9

8

\

Major components: 1. Housing 2. Male rotor 3. Female rotor 4. Radial bearings 5. Axial bearings

2

3

/

/

5

I

6

I

6. Mechanicalseal 7. Oil pump 8. Hydraulic thrust compensating piston 9. Capacity control slide valve 10. Double acting hydraulic piston

Figure H-2-Flooded Screw Compressor



STD.API/PETRO S T D bL9-ENGL L777

m

0732290 0 5 b 7 q 2 7 L7T

--``,,,,,``,,``,`,,`````,,```,-`-`,,`,,`,`,,`---

APPENDIX I-INSPECTOR’S CHECKLIST (INFORMATIVE)



~~

S T D - A P I I P E T R O STD bL7-ENGL L777

0732270 05b7Y28 OOb

INSPECTOR'S CHECKLIST REFERENCE PARAGRAPH API 619

ITEM

DATE INSPECTED

INSPECTED

BY

STATUS

~

Material inspection

6.2.2

Piping fabrication andinstallation

5.5.1.1 5.5.4.2 6.3.2 6.3.3 6.3.3.4.4

Full-pressudfull-load/full-speedtest Inspection ofhuWshaft fitfor hydraulically mounted couplings Governor response and EmergencyOverspeed-Tripsystems test Spare parts test Check after the heatrun Additional tests-as specified Examination of internals for cleanliness: piping oil reservoir bearing housings gear housings coolers filters other Nameplates and Rotation Arrows Overall dimensions and connection locationss Flange dimensions and finish" Anchor bolt layout andsizea ~

6.3.4.1 6.3.4.2 6.3.4.3 6.3.4.4 6.3.4.5 6.3.4.6 6.3.4.7 6.3.4.8 6.3.4.9 6.3.4.10 6.3.4.1 1 6.3.4.12 6.3.5

--``,,,,,``,,``,`,,`````,,```,-`-`,,`,,`,`,,`---

Hydrostatic test Mechanical running test Gas leakage test Optional tests: Performance test Complete unit test Tandem test Gear test Helium test Sound-level test Auxiliary equipment test Post-test inspection

4.12

~

seck against certified drawings. COPYRIGHT 2003; American Petroleum Institute


INSPECTOR'S CHECKLIST REFERENCE PARAGRAPH M I 619

ITEM

DATE INSPECTED

INSPECTED

BY

Preparation for shipment Corrosion protection-exterior Corrosion protection-interior Corrosion Drotection-lubricated surfaces Closures of all openings

6.4.3.1 6.4.3.2 6.4.3.3 6.4.3.4 6.4.3.6,6.4.3.7 6.4.3.8 4.12.3 Equipment nameplate data 6.4.3.10 Equipment identification Piping connections identification (tagging) 6.4.4 Additional inspections-as specified ~~

--``,,,,,``,,``,`,,`````,,```,-`-`,,`,,`,`,,`---



STATUS

S T D - A P I / P E T R O STD bL7-ENGL L977

m

0732270 0 5 b 7 4 3 0 7 b 4

m

--``,,,,,``,,``,`,,`````,,```,-`-`,,`,,`,`,,`---

Additional copies available from API Publications and Distribution:

(202)682-8375 Informationabout API Publications, Programs and Services is avaiiable on the World Wlde Web at: hnp.Jhryww.api.org

American Petroleum Institute COPYRIGHT 2003; American Petroleum Institute

1220 L Street, Northwest Washington, D.C. 20005-4070 202-682-8000 Document provided by IHS Licensee=BP Amoco/5928366101, =, 03/18/2003 01:22:58 MST Questions or comments about this message: please call the Document Policy Management Group at 1-800-451-1584.

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