180154666 Balancing Flow Control Valves Pdf 262e4p

balancing & flow control valves frese

3.1

Quick Reference Introduction

FRESE VALVES

3.12

Alpha / S / SH+ / EVA / Optima / Circon+/Temcon+

oventrop

3.47

Necessity of Hydronic Balancing / Mode of Operation of Valves & Controls Specifying Engineer’s Calculation / Heating & Cooling Systems

OVENTROP VALVES

3.55

Hydrocontrol R/F/FS/FR / Hycocon V / Cocon Q / Flow Charts / Hydromat DP

OVENTROP FLOW MEASURING

3.89

Hydronic Balancing on Site / OV-DMC 2 Flow Meter

comdronic AC6

3.92

June 2010

Fo r

Fo r

ns

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th

dw i

an

dw ith

ion sa n

un

dw ith

ion sa n

un

tua

ac

tor

tor

tua

ac

tor

tua

ac

un

Fo rf lan ge Fo s rf lan ge Fo s rf lan g es Fo rf lan ge Fo s rf lan ge Fo s rf lan ge Fo s rf lan ge Fo s rf lan ge Fo s rf lan g Fo es rf lan ge Fo s rf lan Fo ge rf lan s ge s

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sa nd ion s a with on nd /of wi fa th c on /of tuato fa ctu r ato r

ion

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Fo r

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Fix ed Fix end ed fem en d f ale/u em n ale ion /un ion

ALPHA BASIC

1.061 - 22.76 L/s 1.061 - 34.14 L/s 1.061 - 45.52 L/s 1.061 - 79.67 L/s 1.061 - 136.6 L/s 1.061 - 170.7 L/s 1.061 - 216.2 L/s 1.061 - 295.9 L/s 1.061 - 375.6 L/s 1.061 - 455.2 L/s 1.061 - 637.3 L/s 1.061 - 967.4 L/s

ALPHA DN80

ALPHA DN100 ALPHA DN125 ALPHA DN150 ALPHA DN200 ALPHA DN250 ALPHA DN300 ALPHA DN350 ALPHA DN400 ALPHA DN450 ALPHA DN500 ALPHA DN600 ALPHA DN800

0.188 - 3.154 L/s

0.188 - 3.154 L/s

0.188 - 3.154 L/s

1.061 - 11.38 L/s 1.061 - 11.38 L/s 1.061 - 11.38 L/s

0.008 - 0.358 L/s 0.015 - 0.680 L/s

0.008 - 0.358 L/s 0.015 - 0.680 L/s

0.008 - 0.358 L/s 0.015 - 0.680 L/s

0.008 - 0.358 L/s 0.015 - 0.680 L/s

0.008 - 0.358 L/s 0.015 - 0.680 L/s

0.008 - 0.358 L/s 0.015 - 0.680 L/s

ALPHA DN50 ALPHA DN65

ALPHA WAFER

LUNA DN15-25 LUNA DN25L-50

Klima DN15

EVA BASIC DN15

EVA DN15/20/25

ALPHA DN15-25 ALPHA DN25L-50

ALPHA UNION

ALPHA DN15-25 ALPHA DN25L-50

ALPHA Cartridge type 10, 11, 20

ALPHA Cartridge type 50, 60

Automatic Balancing Valves UK INFO 00 02 J AN 05

COMBIN NG CARTR DGES AND HOUSINGS

QUICK REFERENCE

balancing & flow control valves frese quick reference

Fe ma Fe le/Fe ma le/ male Fe ma le

A Cartridge type Z, A & B

ALPHA Cartridge type 30 & 40

frese quick reference

3.1

frese introduction balancing & flow control valves frese introduction

Scope This section contains an of why it is necessary to balance a water distribution system for the distribution of heating or cooling effects, the considerations that should be made before the system is designed, the result of balancing and the difference between a static and a dynamic balancing valve. What is a Balanced System? Definition: A distribution system is in balance when the flow in the whole system (through the component terminal lines, distributing lines and main distributing lines) corresponds to the flow rates that were specified for the design of the system. The dimensioned “hydraulic” condition of operation can be simulated by means of the opening of all the valves regulating the flow depending on the temperature (room temperature, outdoor temperature or medium temperature) either as manual radiator valves, self-regulating thermostatic valves or electrically actuated valves. In practice it is recommended that balance is established by means of a number of balancing valves that can be pre-set individually to an assessed orifice dimension. Together with the rest of the system they will then establish the exact flow resistances to ensure a correct distribution of the flowing medium.

Figure 2.1 A Balanced section with a distributing line for three terminals. Figure 2.1 Shows an outline of a minor section of a balanced water distribution system. Referring to the figure above the distribution system is in balance when the system contains a number of regulation valves that have been pre-set to be mutually dependent so that the flow through the component terminal lines, distributing lines and main distributing lines corresponds to the flow rates that were specified for the design of the system.

3.2

The information provided in this catalogue is based on original manufacturers’ designs and specifications and subject to change without notice. Crane Distribution accepts no liability for the accuracy of the information or the availability of products.

frese introduction

The Need for Balancing If the correct balancing of the system has not been established, this will result in an unequal distribution of the flow, so that there will be a surplus effect in some of the terminals, whereas the effect will be inadequate in others. The result of this will be that the wanted heating/chilling will not be ensured in all parts of the installation. Figure 2.2 An analogue electric system

In practice it is not possible to make a correctly balanced system by manipulation of the piping or alteration of the pipe dimensions only. Only a correct adjustment of the balancing valves shown in figure 2.1 will ensure the correct distribution of the flow in the system. Design Considerations The engineer in charge of the design and installation of a system should aim at: • Substantial operating effectiveness • Achievement of the required comfort at the lowest operating costs possible • Avoiding unnecessary waste of energy resources.

balancing & flow control valves frese introduction

In an analogue electric system the balancing valves are comparable with a variable resistance, and the resistance of the pipes with the corresponding wiring resistance, and the effective heating-/cooling surfaces with a load resistance (fig. 2.2). The distribution of the electric power through the component load resistances, distributing lines and main distributing lines, depends on the distribution of the resistance in the circuit, similarly to a water distribution system.

For the design and selection of equipment for the balancing and control of a system the following should be taken into consideration: (A) Type of application (B) Type of the building in question (C) The required room temperature/comfort (D) Type of the hot domestic water supply (E) Acceptable deviations from the comfort parameters (F) Minimization of the primary energy (G) Application of heat recycling (H) Economic factors The result of (C), (E) and (F) is very much dependent on the correct distribution of the flow in the system. Therefore the quality of the balancing should meet the the required comfort and energy efficiency. The quality of the balancing is partly dependent on the type of the required balancing valves (static versus dynamic valves, ref. the following section), compared with the required adjustment method, and partly the design of the required components for the verification of the flow in the system. The following quality parameters should be specified during the phase of design: • Type of balancing valves • Adjustment method • Verification of flow, where and how? • Acceptable deviations of the flow

June 2010

3.3


frese introduction The Result of Balancing A satisfactorily balanced installation will show the following results: • Correct flow in boilers and chillers. • Correct distribution of flow and effect in the whole system. • Compatibility between all flow rates in primary and secondary lines. These results will ensure the following benefits: • The room temperature is adjustable within the specific deviations. • Energy saving as a result of the favourable conditions of the equipment that controls the energy transfer. • Achievement of the required indoor climate. Why are Balancing Valves Required? We answer that question on the basis of figure 2.3 The figure shows a schematic outline of a simple installation that contains a boiler/chiller, three identical terminals with the same flow requirement, and a pump to make the heat transfer medium, i.e. water or water/glycol circulate in the system. The top half of the diagram represents the pressure distribution throughout the schematic layout shown in the lower half of the diagram. The branch ‘nodes’ are indicated on both the distribution diagram and the schematic by the small lettering. Figure 2.3 Simple installation and its pressure distribution.

qvn = ∆p/(R . rn), in which qv = flow ∆p = pressure drop R = resistance of pipes, single resistances (fittings, terminals etc.) and valves n = exponent r = density

3.4

In the piping there will be friction between the flowing medium and the pipe wall. This frictional loss makes the pressure decrease along the pipe in the direction of the flow. This will be seen from the falling pressure line between the branching points. The flow rate between two points is determined by the pressure differential between the points and the resistance of pipes, valves and terminals against the flow. The arithmetic coherence can be expressed by the equation to the left. The resistance of value R can be read from tables, please see the respective product catalogues. The exponent n varies in relation to the pipe sizing.


frese introduction

The pressure drop across the three identical terminals will be the same, provided the same flow is required through all of them, i.e. Delta p1 = Delta P2 = Delta p3.

Figure 2.4 Absorbing 'residual' pressure

In order to bring about this identical pressure drop across the terminals and associated piping it is necessary to connect another resistance in series with the resistances of the terminals, so that the residual pressure drop between branching points BF and CG can be absorbed. If the installation in question is not equipped with balancing valves after terminals (2) and (3), the flow through the three terminals will vary so that terminal (3) will be exposed to the major flow, terminal (2) to a smaller flow, and terminal (1) to the smallest flow. In that case the system will not be in the required state of balance. Figure 2.4 shows the distribution of the pressure drop between branching points BF. From this you will see that the adjustment of the regulating valve to the required resistance value has to be carried out with regard to not only the terminal but also the connecting pipes. The final adjustment is usually carried out by indirect measurement of the flow through the regulating valve simultaneously with measurement of the flow through terminal (1). The regulating valve to terminal (2) is to be adjusted to ensure that the proportion of the measured flow rates through terminals (1) and (2) is the same as the one between the indexed flow rates between the two terminals.


The pressure drop Delta p1 is referred to as the ‘index circuit’. The index circuit is the circuit that has the highest resistance to flow. It is normal for this to be the circuit most remote from the pump. This pressure drop can be found by means of the equation delta p1 = R1 x (qv x r)n, in which the resistance of the terminal R1 and the wanted flow q v are known values.

Hereafter the valve is adjusted to terminal (3) to ensure that the proportion between the measured flow rates through terminals (3) and (2) is the same as the one between the indexed flow rates between the two terminals. This adjustment method is called the ‘proportional method’.

June 2010

3.5


frese introduction The Difference between a Static & a Dynamic Balancing Valve Usually you will not find an indication of the resistance value of a valve in valve catalogues and data sheets. On the other hand, the producer always states a flow coefficient referred to as kv or C v (American products). This is also called the flow coefficient of the valve. The flow coefficient of kv is defined to be the flow of water (density 1 kg/litre) through the valve, when the differential pressure across the valve is 1 bar. The designation of this flow is m3/hour.

The flow coefficient of Cv is defined as the flow of water (density 1 kg/litre) through the valve, when the differential pressure across the valve is 1 psi (lb/inch2). The designation of this flow is GPM (US gallon/min.). Hereafter the mathematic coherence between the flow and the differential pressure of the valve can be expressed as follows:

qv = kv √∆p/rr qv in m3/hour when ∆p is in bar (gauge) qv = cv √∆p/rr qv in GPM (US) when ∆p is in psi

Figure 2.5 The valve features of a static circuit balancing valve and a dynamic circuit balancing valve respectively at a given pre-adjustment value.

As regards the 2-position and balancing valves, the indicated flow coefficient of kv refers to the completely open valve. A feature of a static circuit balancing valve is that the open orifice area (k value) can be changed manually and fixed into a static value. The kv value can now be obtained by referring to the hand wheel position in relation to the calibration graph of the valve. The valve should be equipped with 2 pcs. isolation test plugs to which the measuring equipment for indirect flow measurement can be connected. The valve can be pre-adjusted on the basis of a calculated pressure distribution in the whole HVAC installation. Please note that the calculation of large, complex installations may involve a considerable inaccuracy. Further, the valve can be pre-adjusted on the basis of an adjustment after the installation, e.g. according to the ‘proportional method’. A dynamic circuit balancing valve is the next step in balancing valves that was introduced onto the market forty years ago. One of its features is that it can be pre-adjusted to a given flow and be locked to ensure this flow.

These valves are available in types that have been calibrated in the factory to the rated flow, and in types the indexed flow of which can be pre-adjusted by the before or after the installation of the valve in the system, or from the outside as the system is working. The valve can be used on the basis of the calculated flow without regard to the distribution of pressure in the system. Figure 2.5 illustrates the difference between the static and the dynamic application in the form of flow variation as a function of the differential pressure across the valves at a given pre-adjustment. As will be seen from the chart, the flow through the static valve will increase as the differential pressure increases, and decrease as the differential pressure falls, whereas the dynamic balancing valve will maintain a constant flow (within the regulation range) independently of the differential pressure within the dynamic balancing valve. Further, please note that the indexed flow (100%) through a static balancing valve will not be achieved unless the differential pressure across the valve is equal to the indexed differential pressure delta p.

The valve is an automatic regulator valve that with a reference to the differential pressure automatically adjusts to the kv value necessary to maintain the required flow. The kv value of the valve automatically compensates for any changes of the differential pressure, so that the flow will never exceed the pre-set flow.

3.6


frese introduction Where are Balancing Valves required?

Static Systems: During the adjustment it should be possible to measure the flow through each terminal (coil in air-condition, not radiators in heating systems), distributing line, main distributing line and supply line.

Figures 2.6 and 2.7 show a section of the same system, in which figure 2.6 has been designed as a static system, and figure 2.7 as a dynamic system. The section contains one supply line for 3 main distributing lines, each of which has 3 distributing lines with 3 terminals each (totally 27 terminals).

The measurements will typically be carried out as an indirect measurement, i.e. measurement of the differential pressure converted into a flow value in relation to the kv value of the measured device. The measurements are carried out across each circuitbalancing valve with the kv value relative to the valve setting and the associated flow chart. The accuracy of the measured flow is not likely to be better than +/- 25% dependent on the hand wheel position. This inaccuracy should be taken into consideration in connection with the verification of the flow. Still, it is of no particular importance to the relative comparison between the flow through the individual terminals and distributing lines during the balancing procedure. Dynamic Systems: Dynamic valves will typically balance the system at an accuracy of +/- 5% of the rated flow. So, as direct measurements involve a degree of accuracy of +/- 25%, it will be inappropriate to the flow through the individual terminals. Instead, measurement/verification of the flow in the supply line is recommended. For verification of the flow in the supply line it is recommended that a fixed orifice device is used with a specified accuracy which is +/- 5% above that of the measured flow.

In the static system each terminal has to be balanced in 9 groups of 3 terminals each. Hereafter the 9 terminal sections have to be balanced in 3 groups of 3 distributing lines each. After that the 3 main distributing lines have to be balanced. And finally the distributing line is adjusted to ensure the total design flow. This balancing procedure requires one balancing valve per terminal, one balancing valve per distributing line, one balancing valve per main distributing line and one balancing valve in the supply line. In the dynamic system the individual terminals can be adjusted independently of each other. This simply requires one balancing valve per terminal.


When are Flow Measurement Devices required?

Figure 2.6 Water distribution system, static balancing.

Figure 2.7 Water distribution system, dynamic balancing.

June 2010

3.7


frese introduction

3.8

Why use Dynamic Balancing instead of Static Balancing? The adjustment of a dynamic system is quick and easy. All that is needed is the right pre-adjustment/balancing valve specified for the rated flow. There is no need for measurements for making comparisons between the flows of the individual balancing valves.

After the installation the system can be changed/extended/restored without regard to the changes of the balance in the existing part of the system. In a corresponding static system this would often involve a change of the total design of the system.

When the features of an installation are to be calculated, the only uncertain factor will be any inaccuracy in the calculated flow rate. When a dynamic balancing valve is used the uncertainty regarding the distribution of pressure in the installation and consequently the calculated kv values of the balancing valves is eliminated.

From the foregoing, the following benefits of dynamic balancing can be stated: • Quick and easy adjustment • Independent of errors/ unreliabilities in the calculated distribution of pressure in the installation. • Fewer balancing valves • 100 % safe from overflow • Unproblematic re-adjustments • More effective adjustment • Great flexibility if the system is changed after the installation

Balancing valves are only needed for the individual terminals. There is no need for balancing valves in the distribution lines, main distribution lines and supply lines. The individual terminals are 100% safe from overflow without regard to the load distribution in the installation and independent of the dynamic load variation in the installation. In an properly balanced static system overflow (up to 300-400%) may occur through some of the terminals. The rated flow can be changed in one or more sections of the installation without upsetting the balance in the rest of the system. If the dimensional basis of the whole system turns out to be wrong after the installation, a static system can only be re-adjusted if the whole installation is re- adjusted.

Due to these benefits the features of the system design will typically be as follows: • Cheaper installation • Better comfort • Greater flexibility • More economical operation

The result of the adjustment is better when compared to static balancing, because the rated flow is controlled at an accuracy of +/- 5%.


frese alpha cartridges The Frese Alpha Cartridges are particularly designed and manufactured for the automatic balancing of heating and cooling circuits. They are integral part of the Frese Automatic Balancing Valves keeping the flow constant at the specified level even under fluctuating pressure conditions. From small size valves (DN15) to big wafer types (DN800), from small heating units to sea-water district cooling applications, there is a Frese Alpha Cartridge that can guarantee the specified flow. The advanced patented design of the Frese Alpha Cartridges introduces the orifice plate concept for higher performance and flexibility. With the Frese Alpha Cartridges it is no longer needed to change the cartridge every time the design flow is modified. Each cartridge contains an orifice plate specific for every flow that can be easily removed and replaced by another one. Advantages • O nly one differential pressure operating range (up to 350 kPa for DN15 to DN50, up to 600 kPa for sizes DN50 and upwards) making the sizing of the cartridge very easy (depending only on the design flow). • Complete, broad and well-balanced distribution of flows for the full range of heating and cooling applications (from 0.015 l/s and 7 kPa min. differential pressure to 11.381 l/s, per cartridge). • Minimized friction and noise due to the patented cartridge design based on the metal-rubber diaphragm-metal . • Improved response to water hammer due to the shock absorption by the rubber diaphragm of the cartridge. • No impact of debris on the performance of the cartridge. The design of the inlet and the outlet areas makes the accumulation of particles inside the cartridge very difficult.

balancing & flow control valves frese alpha cartridges

Application

Benefits Design • L ess time to define the necessary equipment for a hydraulic balanced system. • No impact if the calculated distribution of pressure in the installation is not accurate. • Security that the specified flow is also the real one. • Flexibility if the system is modified after the initial installation. Installation • C artridge solution makes flushing procedure very easy. • Quick and easy installation of the cartridge in the valve. • Minimized commissioning time due to automatic balancing of the system. Operation • U nproblematic performance even with high concentration of debris. • Noiseless operation. • High comfort for the end-s.

June 2010

3.9

balancing & flow control valves frese alpha cartridges

frese alpha cartridges Flow Rate Graph

[l/s] 1.94 1.67 1.39 1.11 0.83 0.56 0.28

[kPa]

0 0

100

200

300

Schematic view of the flow development for cartridge type 40, Frese number 50-44176. Nominal flow 1.388 l/s. The cartridge enters the pressure range at 22 kPa and maintains the flow at a constant level all the way till 350 kPa.

Indication of Flow Rate on the Orifice Plate A four-digit number on the orifice plate is identical with the last four digits in the Frese number. The cartridge can be identified by means of this number and the corresponding flow rate can be read from the above flow rate tables.

Flow [gpm]

Flow [l/s]

Min. DP

Frese no.

49-11735

3.24

0.204

14

49-11740

3.52

0.222

16

49-11745

3.83

0.242

19

49-11750

4.12

0.260

21

[kPa]

49 = HP High Pressure 50 = LP Low pressure

Tradelink stocks Low Pressure (50=LP) type cartridges, with a pressure range up to 350 kPa for Cartridge types 10, 11, 20, 30 and 40, for valve sizes DN15 to DN50.

Cartridge Operation When the pressure increases the spring will be compressed and there by the piston will reduce the outlet area and viceversa. The result is a constant flow rate through the valve, independent of pressure fluctuations.

3.10


selecting flow rates for glycol mixtures Formula Ø

GPMƒ =

GPMv

SG

ƒ =

Ø SG

GPMƒ = ƒGPMv Definition Qƒ- Fluid Flow Q v - Flow through valve, at measured conditions Ø - Viscosity correction SG - Specific gravity (to water) Method of use for graph 1. Select the curve appropriate for the known percentage glycol/ water mixture. 2. Identify the point on this curve corresponding to the system temperature during balancing. 3. Draw a horizontal line from this point to intersect the specific gravity scale.

The graph indicates values of the specific gravity for specified percentage mixtures and operating temperatures Correction Factor Table Viscosity centipoise

1

10

15

25

35

60

100

200

500

Ø

1

0.95

0.90

0.85

0.80

0.75

0.70

0.65

0.60

ƒ

SG

SG

0.60

0.775

1.29

1.23

1.16

1.10

1.03

0.97

0.90

0.84

0.78

0.65

0.806

1.24

1.18

1.12

1.05

0.99

0.93

0.87

0.81

0.75

0.70

0.837

1.20

1.14

1.08

1.02

0.96

0.90

0.84

0.78

0.72

0.75

0.866

1.16

1.10

1.04

0.98

0.92

0.87

0.81

0.75

0.69

0.80

0.894

1.12

1.06

1.01

0.95

0.89

0.84

0.78

0.73

0.67

0.85

0.922

1.08

1.03

0.98

0.92

0.87

0.81

0.76

0.71

0.65

0.90

0.949

1.05

1.00

0.95

0.90

0.84

0.79

0.74

0.69

0.63

0.95

0.975

1.03

0.97

0.92

0.87

0.82

0.77

0.72

0.67

0.62

1.00

1.000

1.00

0.95

0.90

0.85

0.80

0.75

0.70

0.65

0.60

1.05

1.025

0.98

0.93

0.88

0.83

0.78

0.73

0.68

0.63

0.59

1.10

1.049

0.95

0.91

0.86

0.81

0.76

0.72

0.67

0.62

0.57

1.15

1.072

0.93

0.89

0.84

0.79

0.75

0.70

0.65

0.61

0.56

1.20

1.096

0.91

0.87

0.82

0.78

0.73

0.68

0.64

0.59

0.54

1.25

1.118

0.89

0.85

0.81

0.76

0.72

0.67

0.63

0.58

0.54

1.30

1.140

0.88

0.84

0.79

0.75

0.70

0.66

0.62

0.57

0.53

1.35

1.162

0.86

0.82

0.78

0.73

0.69

0.65

0.60

0.56

0.52

1.40

1.183

0.85

0.80

0.76

0.72

0.68

0.63

0.59

0.55

0.51

June 2010

balancing & flow control valves selecting flow rates for glycol mixtures

Flow 'Correction Factors' Water/Glycol Mixtures

3.11

balancing & flow control valves frese alpha automatic balancing valve

frese alpha automatic balancing valve

3.12

Application The Frese Alpha Valves are particularly designed and manufactured for the automatic balancing of heating and cooling circuits. The Frese Alpha Cartridges - the second generation cartridges - are an integral part of the Frese Alpha Valves limiting the flow at the specified level even under fluctuating pressure conditions. The patented design of these cartridges introduces a replaceable orifice plate for higher flexibility and a resistant diaphragm for higher accuracy. From small size threaded valves (DN15) to big flanged type valves (DN800), from small heating units to sea-water district cooling applications, Frese Alpha Valves guarantee the hydraulic balance of the system regardless pressure fluctuations. Benefits Design • N o need to use balancing valves in the distribution lines, main distribution lines and supply lines • Less time to define the necessary equipment for a hydraulic balanced system • No impact if the calculated distribution of pressure in the installation is not accurate • Security that the specified flow is also the real one • No requirements on pipe lengths before and after the valve Installation • M inimized commissioning time due to automatic balancing of the system • Cartridge solution makes flushing procedure very easy • No need for oversized pumps and oversized control valves Operation • Energy savings due to elimination of overflows • Higher comfort due to correct distribution of water in the system and to optimized function of the control valves • Maintenance-free operation of the valve Advantages • W ide product range covering all applications - sizes from DN15 to DN800 - different end connections (female/female, union connections,flanges), - dezincification resistant brass, ductile iron, naval bronze, - P/T plugs, drain, combi-drain, - kit solution with strainer and ball-valves, solution with integral ball-valve, • Balancing of the system takes place automatically even under fluctuating pressure conditions • No more overflows in the system • Modifications & extensions of the system do not affect the hydraulic balance in the other parts of the system • Tamper resistant cartridge independent of flow regulation errors during commissioning and operation of the system • Self-cleaning cartridge not allowing dirt to compromise the accuracy of the valve • Resistant diaphragm between the moving parts of the cartridge eliminates friction, noise and impact from water-hammer.


frese alpha basic dynamic balancing valve Body Brass (DZR) CW602N O-Rings EPDM Seal PTFE Flow Cartridge Brass (DZR) CW602N Spring Stainless Steel Diaphragm HBNR Orifice Plate Brass (DZR) CW602N Accuracy +/- 5% Pressure Class PN25 Max Differential Pressure 350 kPaD Media Temperature -20°C to +120°C Body Tappings 1/4” ISO Flow Rate Range 0.007 L/s to 3.154 L/s Size Range DN15 to DN50 Threads ISO 228 Female Parallel Design Features L

DN 1

1. Automatic balancing valve with two colour coded test points for differential pressure measurement. ‘Red’ is for Flow and ‘Blue’ is the return side of the valve. 2. The unit will automatically limit the flow rate to +/- 5% of the selected flow rate. 3. The flow cartridge is removable from the valve for change of flow rate or flushing without removing the valve from inline. 4. Only one differential pressure operating range (up to 350 kPaD) making the sizing of the cartridge very easy. (depending only on the design flow) 5. The cartridge design has minimized friction and noise due to the patented cartridge design based on the metal-rubber diaphragmmetal . 6. Improved response to water hammer due to the shock absorption by the rubber diaphragm of the cartridge. 7. No impact of debris on the performance of the cartridge. The design of the inlet and outlet areas makes the accumulation of particles inside the cartridge very difficult. 8. Valves are delivered assembled and tagged for easy identification.

W

5

N2

5/P

H

Valve Dimensions - mm Size

15

20

25 sml

25 lge

32

40

50

H

94

94

94

126

126

126

126

L

77

77

77

123

123

123

123

W

55

55

55

80

80

80

80

kg

0.5

0.5

0.5

1.45

1.45

1.45

1.45

balancing & flow control valves frese alpha basic dynamic balancing valve

Specification

Dimensions shown with standard P/T points.

Tradelink Industrial Alpha Basic Codes Size

15

20

25 sml

25 lge

32

40

50

Code

020164

020170

020177

020185

020187

020193

020215

Tradelink Frese Extended P/T Point Kit Codes Extension Length

50mm

100mm

Code

116157

116156

June 2010

3.13

balancing & flow control valves frese alpha basic dynamic balancing valve

frese alpha basic dynamic balancing valve For Valves DN15-DN25, 0.007 - 0.680 L/s ID 1150 1170 1190 1210 1230 1260 1290 1300 1320 1350 1370 1400 1430 1460 1490 1510 1540 1570 1620 1725 1730 1735 1740 1745 1750 0700 0740 0770 0820 0860 0880 0920 0940 0990 1030 1060 1090

Flow L/s

Min Dp kPa Cartridge

Cartridge/Orifice Type 10 0.007 7 0.010 7 0.012 7 0.015 7 0.021 8 0.024 9 0.029 10 0.032 10 0.036 11 0.043 11 0.049 12 0.057 12 0.067 12 0.078 12 0.089 13 0.097 13 0.111 13 0.132 14 0.151 14 Cartridge/Orifice Type 11 0.171 14 0.186 14 0.204 14 0.222 16 0.242 19 0.260 21 Cartridge/Orifice Type 20 0.283 22 0.300 22 0.332 22 0.371 23 0.412 23 0.439 23 0.493 24 0.509 24 0.578 25 0.625 26 0.644 27 0.680 28

For Valve DN25L-DN50, 0.188 - 3.154 L/s Kv

ID

0.09 0.14 0.16 0.21 0.27 0.28 0.33 0.36 0.39 0.46 0.51 0.59 0.70 0.81 0.89 0.97 1.11 1.27 1.46

3073 3082 3089 3094 3096 3098 3102 3107 3111 3112 3118 3124 3125 3129 3132 3135 3138 3142 3148 3156 3161 3163

1.64 1.79 1.97 2.00 2.00 2.04 2.17 2.30 2.55 2.78 3.09 3.30 3.62 3.74 4.16 4.41 4.46 4.63

Specification text The valve shall operate by means of an automatic balancing cartridge with replaceable orifice plate and internal diaphragm. The pressure class of the valve shall be PN25. The valve housing shall be made of DR brass. The valve is Frese Alpha Basic. Installation No requirements on pipe lengths before and after the valve. The valve body has flow direction indicated. A strainer is recommended according to good piping practises. Standard practise for balancing valves is to install on the return side of the terminal. The pipe system should be properly ventilated to avoid the risk of air-pockets.

4148 4152 4156 4164 4168 4173 4176 4182 4191 4194 4200 4205 4211 4217 4222 4229 4235 4241 4248 4250 4262

Flow L/s


Cartridge/Orifice Type 30 0.188 12 0.239 12 0.283 12 0.315 12 0.331 12 0.353 13 0.375 13 0.413 13 0.435 14 0.453 14 0.504 14 0.556 15 0.568 16 0.603 16 0.631 17 0.661 17 0.694 18 0.733 18 0.797 19 0.886 21 0.946 22 0.968 22 Cartridge/Orifice Type 40 1.010 20 1.072 21 1.136 21 1.199 21 1.261 22 1.325 22 1.388 23 1.514 24 1.640 25 1.767 26 1.893 27 2.018 28 2.144 30 2.271 31 2.397 33 2.524 34 2.650 36 2.775 38 2.901 40 3.028 42 3.154 44

Kv 1.95 2.49 2.94 3.28 3.44 3.53 3.74 4.12 4.19 4.36 4.85 5.17 5.11 5.43 5.51 5.77 5.89 6.22 6.59 6.96 7.26 7.43 8.13 8.03 8.92 9.42 9.68 10.17 10.42 11.12 11.81 12.82 13.11 13.73 14.10 14.68 15.02 15.58 15.90 16.20 16.51 16.82 17.12

NOTE: The minimum required differential pressure is measured using the measurement outlets on the valve housing. This applies to all cartridge types. If measured pressure differential pressure is below minimum Dp, the flow can be found by using the Kv figures above. Glycol mixtures (both ethylene and propylene) up to 50% are applicable. See page 3.11. ID = four digit number on the orifice plate.

3.14


frese alpha union dynamic balancing valve

Design Features 1. Integrated flow limiter, isolation ball valve and inlet union. 2. Two colour coded test points for differential pressure measurement. ‘Red’ is for Flow and ‘Blue’ is the return side of the valve. 3. The unit will automatically limit the flow rate to +/- 5% of the selected flow rate. 4. The union tail piece is available in parallel threaded male, female and copper sweat end connections for ease of installation. 5. The integral ball valve has a full size external handle and an external mechanical stop to ensure a 90° turn. 6. The flow cartridge is removable from the valve for change of flow rate or flushing without removing the valve from inline. 7. Only one differential pressure operating range (up to 350 kPaD) making the sizing of the cartridge very easy. (depending only on the design flow) 8. The cartridge design has minimized friction and noise due to the patented cartridge design based on the metal-rubber diaphragmmetal . 9. Improved response to water hammer due to the shock absorption by the rubber diaphragm of the cartridge. 10. No impact of debris on the performance of the cartridge. The design of the inlet and outlet areas makes the accumulation of particles inside the cartridge very difficult. 11. Valves are delivered assembled and tagged for easy identification.

H

W

L

Valve Dimensions - mm Size H L* L** W kg

15 94 107 129 87 0.87

20 94 107 129 87 0.87

25 sml 94 107 146 87 0.87

25 lge 126 126 195 124 2.54

32 126 126 195 124 2.54

40 126 126 200 124 2.54

25 lge 020318 019453 019759

32 020319 019454 019761

40 020525 019455 019765

balancing & flow control valves frese alpha union dynamic balancing valve

Specification Body Brass (DZR) CW602N O-Rings EPDM Seal PTFE Flow Cartridge Brass (DZR) CW602N Spring Stainless Steel Diaphragm HBNR Orifice Plate Brass (DZR) CW602N Union Brass (DZR) CW602N Accuracy +/- 5% Pressure Class PN25 Max Differential Pressure 350 kPaD Media Temperature -20°C to +120°C Body Tappings 1/4” ISO Flow Rate Range 0.007 L/s to 3.154 L/s Size Range DN15 to DN40 Threads ISO 228 Female Parallel

* with no union end. ** with female union tail piece. Dimensions shown with standard P/T points.

Tradelink Industrial Alpha Union Codes Size F&F Cu&F M&F

15 020222 019449 019456

20 020255 019451 019457

25 sml 020258 019452 019458

Tradelink Frese Alpha Accessory Kit Codes Size Ball valve spindle extension P/T Extension kit 50mm P/T Extension kit 100mm

June 2010

15

20

25 sml

25 lge

32

40

116157 116156

116157 116156

116157 116156

116157 116156

116757 116156

116157 116156

3.15

balancing & flow control valves frese alpha union dynamic balancing valve

frese alpha union dynamic balancing valve For Valves DN15-DN25, 0.007 - 0.680 L/s ID 1150 1170 1190 1210 1230 1260 1290 1300 1320 1350 1370 1400 1430 1460 1490 1510 1540 1570 1620 1725 1730 1735 1740 1745 1750 0700 0740 0770 0820 0860 0880 0920 0940 0990 1030 1060 1090

Flow L/s


Cartridge/Orifice Type 10 0.007 7 0.010 7 0.012 7 0.015 7 0.021 8 0.024 9 0.029 10 0.032 10 0.036 11 0.043 11 0.049 12 0.057 12 0.067 12 0.078 12 0.089 13 0.097 13 0.111 13 0.132 14 0.151 14 Cartridge/Orifice Type 11 0.171 14 0.186 14 0.204 14 0.222 16 0.242 19 0.260 21 Cartridge/Orifice Type 20 0.283 22 0.300 22 0.332 22 0.371 23 0.412 23 0.439 23 0.493 24 0.509 24 0.578 25 0.625 26 0.644 27 0.680 28

For Valve DN25L-DN50, 0.188 - 3.154 L/s Kv

ID

0.09 0.14 0.16 0.21 0.27 0.28 0.33 0.36 0.39 0.46 0.51 0.59 0.70 0.81 0.89 0.97 1.11 1.27 1.46

3073 3082 3089 3094 3096 3098 3102 3107 3111 3112 3118 3124 3125 3129 3132 3135 3138 3142 3148 3156 3161 3163

1.64 1.79 1.97 2.00 2.00 2.04 2.17 2.30 2.55 2.78 3.09 3.30 3.62 3.74 4.16 4.41 4.46 4.63

Specification text The valve shall operate by means of an automatic balancing cartridge with replaceable orifice plate and internal diaphragm. The pressure class of the valve shall be PN25. The valve housing shall be made of DR brass. The housing shall have one fixed threaded end and one union end. The valve includes and integral ball valve with handle. The valve is Frese Alpha Union. Installation No requirements on pipe lengths before and after the valve. The valve body has flow direction indicated. A strainer is recommended according to good piping practises. Standard practise for balancing valves is to install on the return side of the terminal. The pipe system should be properly ventilated to avoid the risk of air-pockets.

3.16

4148 4152 4156 4164 4168 4173 4176 4182 4191 4194 4200 4205 4211 4217 4222 4229 4235 4241 4248 4250 4262

Flow L/s


Cartridge/Orifice Type 30 0.188 12 0.239 12 0.283 12 0.315 12 0.331 12 0.353 13 0.375 13 0.413 13 0.435 14 0.453 14 0.504 14 0.556 15 0.568 16 0.603 16 0.631 17 0.661 17 0.694 18 0.733 18 0.797 19 0.886 21 0.946 22 0.968 22 Cartridge/Orifice Type 40 1.010 20 1.072 21 1.136 21 1.199 21 1.261 22 1.325 22 1.388 23 1.514 24 1.640 25 1.767 26 1.893 27 2.018 28 2.144 30 2.271 31 2.397 33 2.524 34 2.650 36 2.775 38 2.901 40 3.028 42 3.154 44

Kv 1.95 2.49 2.94 3.28 3.44 3.53 3.74 4.12 4.19 4.36 4.85 5.17 5.11 5.43 5.51 5.77 5.89 6.22 6.59 6.96 7.26 7.43 8.13 8.03 8.92 9.42 9.68 10.17 10.42 11.12 11.81 12.82 13.11 13.73 14.10 14.68 15.02 15.58 15.90 16.20 16.51 16.82 17.12

NOTE: The minimum required differential pressure is measured using the measurement outlets on the valve housing. This applies to all cartridge types. If measured pressure differential pressure is below minimum Dp, the flow can be found by using the Kv figures above. Glycol mixtures (both ethylene and propylene) up to 50% are applicable. See page 3.11. ID = four digit number on the orifice plate.


frese alpha wafer dynamic balancing valve Body Ductile Iron DIN 1693 GGG-40 O-Rings EPDM Flow Cartridge AISI 304 Spring Stainless Steel Diaphragm Reinforced EPDM Orifice Plate AISI 316 Fasteners Stainless Steel AISI 306 Accuracy +/- 5%, +/-10% over 400 kPaD Pressure Class PN16 (DN50/65/80 are PN25) (other sizes on request) Max Differential Pressure 600 kPaD Dm Media Temperature -20°C to +110°C Body Tappings 1/4” ISO Size Range DN50 to DN800 Flange connections According to EN/ANSI Standards

L D H

Design Features 1. Two 100mm colour coded test points for differential pressure measurement. ‘Red’ is for Flow and ‘Blue’ is the return side of the valve. 2. The unit will automatically limit the flow rate to +/- 5% of the selected flow rate, unless differential pressure across valve exceeds 400 kPaD. In differential pressure ranges up to 600 kPaD the flow rate becomes +/- 10%. 3. The flow cartridge shall offer possibility to change flow rate by means of an orifice plate. 4. Only one differential pressure operating range (up to 600 kPaD) making the sizing of the cartridge very easy (depending only on the design flow). 5. The cartridge design has minimized friction and noise due to the patented cartridge design based on the metal-rubber diaphragmmetal . 6. Improved response to water hammer due to the shock absorption by the rubber diaphragm of the cartridge. 7. No impact of debris on the performance of the cartridge. The design of the inlet and outlet areas makes the accumulation of particles inside the cartridge very difficult. 8. Valves are delivered assembled and tagged for easy identification. 9. From DN100 the valves are delivered with eye bolt. 10. Valve housing in Naval Bronze RG6, DN100-800, PN16 available on request with AISI 316 cartridge and fasteners for sea water applications.

Dim

balancing & flow control valves frese alpha wafer dynamic balancing valve

Specification

Tradelink Industrial Alpha Wafer Codes Size Ductile Iron

50

65

80

100

125

150

200

250

020532

020546

020586

020642

020646

020648

020659

020692

300

350

400

450

500

600

800

020695

020696

020711

020712

020717

020721

020727

Naval Bronze Size Ductile Iron Naval Bronze

June 2010

3.17

balancing & flow control valves frese alpha wafer dynamic balancing valve

frese alpha wafer dynamic balancing valve Valve Dimensions - mm Size 50 65 80 100 125 150 200 250 300 350 400 450 500 600 800

L 170 170 170 170 170 170 170 170 170 170 170 170 170 170 170

D 100 119 131 163 193 216 271 326 383 443 496 545 601 715 880

H 218 237 249 281 311 334 389 440 501 561 614 663 719 833 998

for Valves DN50-DN800, 1.061 - 12.5 L/s ID 5179 5184 5189 5194 5200 5206 5213 5220 5227 5235 5243 5251 5260 5269 5279 5287 5292 5298 5303 5308

Flow L/s


Cartridge/Orifice Type 50 1.061 13 1.092 13 1.125 13 1.167 13 1.222 13 1.289 14 1.375 14 1.475 14 1.583 14 1.725 14 1.808 14 1.967 14 2.194 15 2.472 16 2.889 19 3.154 22 3.470 23 3.722 24 4.100 27 4.444 29

Cart / Vlv 1 1 1 2 3 4 7 12 15 19 26 33 40 56 85

Max L/s 11.38 11.38 11.38 22.76 34.14 45.52 79.67 136.6 170.7 216.2 295.9 375.6 455.2 637.3 967.4

RG6 kg

7.59 9.90 12.90 20.63 25.78 36.75 48.63 56.79 63.22 74.53 97.79 140.03

for Valves DN50-DN800, 1.061 - 12.5 L/s Kv

ID

10.6 10.9 11.2 11.7 12.2 12.4 13.2 14.2 15.2 16.6 17.4 18.9 20.4 22.3 23.9 24.2 26.1 27.4 28.4 29.7

6285 6292 6301 6305 6312 6319 6326 6332 6338 6344 6349 6356 6362 6367 6373 6379 6385 6391 6393 6398 6400 6407 6407H

Specification text The valve shall operate by means of an automatic balancing stainless steel cartridges with replaceable orifice plates and internal EPDM diaphragms. The pressure class of the valve shall be PN16/PN25. The valve housing shall be made of ductile iron type GGG40. The valve shall comply with flanges according to EN/ANSI standards. The valve is Frese Alpha Wafer. Installation No requirements on pipe lengths before and after the valve. The valve body has flow direction indicated. A strainer is recommended according to good piping practises. Standard practise for balancing valves is to install on the return side of the terminal. The pipe system should be properly ventilated to avoid the risk of air-pockets.

3.18

kg 3.41 4.91 4.79 6.90 9.00 11.73 18.75 23.44 33.41 44.21 51.63 57.47 67.75 88.90 127.30

Flow L/s


Cartridge/Orifice Type 60 4.733 34 5.041 34 5.221 35 5.408 35 5.684 35 5.980 36 6.236 36 6.523 36 6.815 37 7.117 38 73.690 38 7.690 38 8.099 38 8.320 39 8.605 39 8.961 40 9.324 40 9.709 40 10.093 42 10.468 43 10.724 44 11.381 46 12.500 49

Kv 29.2 31.1 31.8 32.9 34.6 35.9 37.4 39.1 40.3 41.6 43.0 44.9 47.3 48.0 49.6 51.0 53.0 55.3 56.1 57.5 58.2 60.4 64.3

NOTE: The minimum required differential pressure is measured using the measurement outlets on the valve housing. This applies to all cartridge types. In pressure ranges from 0 to 400 kPaD the flow rate is +/- 5%. In pressure ranges up to 600 kPaD the flow rate is +/10%. If measured pressure differential pressure is below minimum Dp, the flow can be found by using the Kv figures listed. Glycol mixtures (both ethylene and propylene) up to 50% are applicable. See page 3.11. ID = four digit number on the orifice plate.


frese s dynamic balancing valve The Frese S is an externally adjustable, tamper resistant, automatic balancing valve. Each valve can be set to deliver a range of flow rates via the handle without requiring a change of the internal cartridge. Frese S is used in heating and cooling systems for the distribution of flow in various sections of the system. The dynamic balancing valve ensures easy and reliable balancing of the system, regardless of any fluctations in the differential pressure of the system. Frese S limits maximum flow in the system, and ensures the most economical operation. Can be used in both variable and constant flow systems. Specification Housing DZR Brass DP Controller PPS 40% Glass Flow Setting PPO Spring Stainless Steel Diaghragm HNBR O-Rings EPDM Pressure Class PN25 Max. Differential Pressure 400 kPa (High Pressure) 250 kPa (Low Pressure) Temperature Range -10°C to + 120°C Benefits 1. Quick and easy selection as only flow data are required. 2. Security that the specified flow will not be exceeded. 3. Easy to install and adjust according to pre-defined flow. 4. Flexibility if the system is modified after the initial installation without changing internal cartridge. 5. Minimized commissioning time due to automatic balancing of the system. 6. High comfort for the end-s due to right balance of the hydraulic system. 7. The valves automatically find the hydraulic balance regardless of pressure fluctations in the system. 8. No main circuit or branch balancing valves needed in the system. 9. Systems with dynamic balancing are flexible, as they do not require readjustment of the 'original' circuit in case the system is extended after installation.

balancing & flow control valves frese s dynamic balancing valve

Application

Features 1. Removable differential pressure cartridge solution simplifies flushing procedure. 2. No minimum straight pipe lengths required before or after the valve. 3. Built-in optional P/T ports, with test points, for needle system. 4. Easy adjustment of the flow by the lockable handle without changing internal cartridge. 5. Flow rate tolerance +/-5%. 6. Differential pressure operating range up to 400 kPa or 250 kPa (DN15-DN25 Low pressure). 7. The handle is for the adjustment of flow. Use a partner isolation ball valve to shut off flow.

Tradelink Frese Extended P/T Point Kit Codes Extension Length

50mm

100mm

Code

116157

116156

Tradelink Industrial Frese S Codes Size

15

20

25

HP

113589

113590

113591

LP

32

40

50

113592

113593

113594

HP = High Pressure, LP = Low Pressure.

June 2010

3.19

frese s dynamic balancing valve balancing & flow control valves frese s dynamic balancing valve

Specification The valve should be a automatic balancing valve with the option of setting the flow without interference of operation. The valve should include P/T plugs for the verification of differential pressure. The valve should only be adjustable by means of a lockable handle. Function The operation of the Frese S can be simplified by breaking it down into it’s two main components, a pre-adjustment unit and a differential pressure control unit. The Frese S valves, react to pressure fluctations so that the differential pressure across the pre-adjustment unit is kept constant. In that way a max. flow limit is ensured in accordance with the design.

Frese S

Flow Characteristic The illustration shows how the flow in a Frese S valve reacts in accordance to the pump pressure. For comparison we have added the typical flow characteristic for a static balancing valve. The differential pressure unit of the valve will work as soon as the differential pressure provided by the pump is sufficient. Consequently, the rated flow is maintained regardless of any pressure fluctuations in the system.

Frese S valve

Setting the Valve The valve is easily set and the pre-setting is read on the scale on the handle. See flow rate graphs attached for settings. NOTE: the scale is for the adjustment of flow. If you want to shut off flow you should use a partner isolation ball valve. The handle can be locked after adjustment. Remove the cap marked 'Frese' and tighten with 5mm hexagonal key. Dimensions - mm Size

15

20

25

32

40

50

L

96

97

103

132

144

155

H

148

151

155

188

206

219

H1

96

98

102

115

119

126

Size

15

20

25

32

40

50

Range L/s

0.011-0.306 HP 0.007-0.223 LP

0.018-0.512 HP 0.011-0.351 LP

0.025-0.653 HP 0.017-0.462 LP

0.060-1.328 HP

0.049-2.067 HP

0.122-2.868 HP

Kvs

2.4 HP / 2.2 LP

3.6 HP / 3.3 LP

4.4 HP/ 4.1 LP

8.8 HP

13.2 HP

16.7 HP

Flow Rates - L/s

3.20


frese s dynamic balancing valve The flow through the valve can be identified by measuring the differential pressure (Δp) across the valve: - If the measured differential pressure is above the minimum Δp, the flow is the one stated on the graph for the valve. - If the measured differential pressure is below the minimum Δp, the flow can be found by using the formulas below. Flow Calculation

Measurement of the differential pressure across the valve.

Q = kV · √Δp

Q = m3/h Δp = Bar

Q = kV · 100 · √Δp

Q = L/h Δp = kPa

Q = kV · √Δp 36

Q = L/s Δp = kPa

Flow Rate Example Frese S, DN15 Rated flow 500 L/h - 0,0139 L/s 1. The rated flow is used as the point of reference for the overall rating of dynamic systems. (See the graph) 2. The pre-setting for the valve is found by means of the flow rate graph. Setting = 5.2. 3. To the right in the graph you will see the minimum differential pressure required from the pump by each valve. Requires 18,3 kPa.

Δ

1

kPa


Flow Verification

3 2

June 2010

3.21


frese s dynamic balancing valve Flow rate graph Frese S, DN15 High Pressure kV (m3/h) 0,1

0,3

0,6

0,8

1,1

1,3

1,6

1,9

2,2

2,4

Δp kPa

Pre-set

Flow rate graph Frese S, DN20 High Pressure

Δ Δp kPa

( kV (m3/h) 0,2

0,6

1,0

1,5

1,9

2,3

2,7

3,1

3,5

3,6

Pre-set

3.22


frese s dynamic balancing valve kkV ( 00,3 3

0088

1,5 5

22,2 2

3

2,8 8

) 33

3 3 88

44 1

4433

44

ΔΔppkPa kPa

Pre-set


Δp kPa

kV (m3/h) 0,6

1,8

3,0

4,1

5,2

6,3

7,3

8,1

8,7



8,8

Pre-set

June 2010

3.23


frese s dynamic balancing valve Flow rate graph Frese S, DN40 High Pressure

0,5

2,0

4,0

5,9

( 3 kV (m /h) 7 7,6

Δp kPa 9,0

10,5

11,8

12,9

13,2

12,4

14,0

15,4

16,2

16,7

Pre-set


Δp kPa

kV (m3/h) 1,1

3,6

6,2

8,6

10,6

Pre-set

3.24


frese s dynamic balancing valve Flow Flow(l/s) l/s Flow Flow(l/h) (l/h

0,1

0,3 0,

0,6 06

0,8

3 kV (m (m3/h) /h 1,1 1

1,3

1,6 16

1,8 1,8

2,1 2

min. mi Δp ΔpkPa kPa

2,2 2,2 12,8 12

0,222 0 222

800 8

0,194 0,194

700 700

12,2 12,2

0,167 0,167

600 6

11,6 1 6

0,139 0,1 9

500 5

11 1

0,111 0,11

400 4

10,4 10 4

0,083 0,08

300 3

9,8 9

0,056 0,056

200 2

9,2 92

0,028 0,028

100 1

8,6 86

0

0

0

1

2

3

44

55

66

77

8

99

2,2

2,5

2,9

3,2

88

10 1

Pre-set Pre-se

Flow rate graph Frese S, DN20 Low Pressure Flow (l/s) Flow (l/h)

0,2

0,5

0,9

1,4

kV (m3/h) 1,8

min. Δp kPa

3,3 15

0,361

1300

0,333

1200

14,5

0,306

1100

14

0,278

1000

13,5

0,250

900

13

0,222

800

12,5

0,194

700

12

0,167

600

11,5

0,139

500

11

0,111

400

10,5

0,083

300

10

0,056

200

9,5

0,028

100

9

0

June 2010

0

0

1

2

3

4

5

6

7

8

9


Flow rate graph Frese S, DN15 Low Pressure

10

8,5

3.25


frese s dynamic balancing valve

3.26

Flow rate graph Frese S, DN25 Low Pressure Flow (l/s) Flow (l/h)

0,2

0,7

1,3

1,9

kV (m3/h) 2,5

3,0

3,4

3,7

4,0

min. Δp kPa

4,1 17

0,472

1700

0,444

1600

16,5

0,417

1500

16

0,389

1400

15,5

0,361

1300

15

0,333

1200

14,5

0,306

1100

14

0,278

1000

13,5

0,250

900

13

0,222

800

12,5

0,194

700

12

0,167

600

11,5

0,139

500

11

0,111

400

10,5

0,083

300

10

0,056

200

9,5

0,028

100

9

0

0

0

1

2

3

4

5

6

7

8

9

10

8,5

Pre-set


frese s dynamic balancing valve Pre-setting

15 HP

15 LP

20 HP

20 LP

25 HP

25 LP

32 HP

40 HP

50 HP

1

0.011

0.007

0.018

0.011

0.025

0.017

0.060

0.049

0.122

1.2

0.015

0.009

0.024

0.016

0.035

0.025

0.085

0.078

0.182

1.4

0.020

0.012

0.031

0.021

0.044

0.032

0.110

0.107

0.241

1.6

0.025

0.015

0.039

0.026

0.056

0.041

0.137

0.143

0.304

1.8

0.030

0.019

0.048

0.033

0.069

0.051

0.166

0.185

0.371

2

0.036

0.023

0.057

0.040

0.082

0.061

0.194

0.227

0.438

2.2

0.042

0.028

0.067

0.048

0.098

0.072

0.224

0.276

0.509

2.4

0.048

0.033

0.078

0.057

0.114

0.083

0.255

0.325

0.580

2.6

0.054

0.038

0.089

0.065

0.130

0.095

0.286

0.376

0.651

2.8

0.060

0.043

0.100

0.074

0.147

0.108

0.317

0.428

0.724

3

0.066

0.048

0.111

0.083

0.164

0.120

0.349

0.480

0.797

3.2

0.072

0.053

0.122

0.092

0.182

0.133

0.381

0.533

0.870

3.4

0.078

0.058

0.133

0.101

0.200

0.146

0.413

0.586

0.943

3.6

0.084

0.063

0.145

0.109

0.218

0.158

0.445

0.638

1.015

3.8

0.091

0.068

0.156

0.118

0.236

0.171

0.478

0.690

1.088

4

0.097

0.073

0.168

0.126

0.254

0.184

0.510

0.742

1.161

4.2

0.103

0.078

0.179

0.134

0.272

0.197

0.542

0.792

1.233

4.4

0.109

0.083

0.190

0.143

0.290

0.210

0.575

0.843

1.304

4.6

0.115

0.087

0.202

0.151

0.308

0.223

0.607

0.893

1.375

4.8

0.122

0.092

0.213

0.160

0.325

0.236

0.640

0.942

1.446

5

0.128

0.097

0.225

0.168

0.343

0.249

0.672

0.992

1.517

5.2

0.134

0.101

0.237

0.176

0.361

0.261

0.705

1.041

1.587

5.4

0.141

0.106

0.248

0.184

0.378

0.274

0.738

1.090

1.656

5.6

0.147

0.110

0.260

0.192

0.395

0.286

0.771

1.138

1.726

5.8

0.154

0.115

0.273

0.201

0.412

0.298

0.804

1.187

1.795

6

0.161

0.120

0.285

0.209

0.429

0.310

0.837

1.236

1.864

6.2

0.168

0.125

0.297

0.217

0.445

0.321

0.870

1.286

1.932

6.4

0.175

0.130

0.310

0.226

0.461

0.332

0.903

1.335

2.000

6.6

0.183

0.135

0.323

0.234

0.477

0.343

0.936

1.385

2.067

6.8

0.190

0.140

0.336

0.243

0.492

0.354

0.969

1.436

2.134

7

0.198

0.145

0.349

0.252

0.508

0.365

1.002

1.486

2.200

7.2

0.206

0.151

0.363

0.261

0.522

0.375

1.034

1.537

2.264

7.4

0.214

0.156

0.376

0.270

0.537

0.385

1.067

1.588

2.328

7.6

0.222

0.162

0.390

0.278

0.551

0.395

1.098

1.639

2.390

7.8

0.230

0.168

0.403

0.287

0.564

0.404

1.129

1.690

2.451

8

0.238

0.174

0.417

0.296

0.578

0.413

1.159

1.741

2.511

8.2

0.246

0.180

0.430

0.304

0.590

0.421

1.186

1.789

2.565

8.4

0.254

0.185

0.443

0.312

0.601

0.428

1.213

1.837

2.620

8.6

0.262

0.191

0.456

0.320

0.612

0.435

1.238

1.882

2.670

8.8

0.270

0.196

0.467

0.327

0.621

0.442

1.261

1.923

2.715

9

0.278

0.202

0.479

0.334

0.631

0.448

1.283

1.964

2.760

9.2

0.284

0.207

0.488

0.339

0.637

0.452

1.297

1.994

2.791

9.4

0.291

0.212

0.497

0.344

0.644

0.456

1.312

2.024

2.822

9.6

0.296

0.216

0.503

0.348

0.648

0.459

1.321

2.045

2.844

9.8

0.301

0.219

0.508

0.349

0.651

0.460

1.324

2.056

2.856

10

0.306

0.223

0.512

0.351

0.653

0.462

1.328

2.067

2.868

June 2010


Setting & Flow - L/s

3.27

balancing & flow control valves frese sH+ dynamic balancing valve

frese sh+ dynamic balancing valve Specification Presure Class PN 25 (25 Bar) Temperature Range -20°C to 110°C Plastic Parts PSU, POM Diaphragm HBNR Body Material Brass CW617N End Connections Bronze Alloy ISO or NPT O-Rings EPDM 281 Springs Stainless Steel Body Tappings 1/4" ISO Design Features Externally adjustable to 60 different flow rate settings. Pressure/Temperature ports. Range of end connections available. Sizes: 15,20,25,32, and 40mm. Flow Rate Range: 0.075 - 1.949 L/s. An SH+ valve is not a shut-off valve. Accessories Adjustment Key Pressure/Temperature Test Fittings 1/4“ ISO Drain Valve

Dimensions & Weights (Nominal) L Length

H2 Height

H1 Height

F ISO 22.4

25.4

9.5

SH 1

108.0

89.9

58.9

22.4

25.4

9.5

25mm

N/A

33.5

9.5

25mm

35.1

40.1

9.5

35.1

40.1

9.5

35.1

41.2

9.5

15mm 20mm

32mm

SH 2

149.1

140.0

63.0

40mm 1

End Connections1

Model Code

Size

MISO

SWT

Weight (kg)

Shut Off Leakage

kPaD Range

1.8

.3% of max flow rate

23 - 300

4.5

.5% of max flow rate

19 - 300

Add end connection length to body length. Measured in mm unless noted.

Tradelink Industrial Frese SH+ Codes

3.28

Size

15

20

25 sml

25 lge

32

40

Cu&Cu

040274

040280

040281

040282

040283

040284

F&Cu

040285

040286

040288

040289

040290

F&F

040227

040228

040230

040231

040232

M&Cu

040486

040487

040489

040490

040491

M&F

040268

040269

040271

040272

040273

M&M

040695

040696

040699

040701

040702

040488 040229


frese sh+ dynamic balancing valve

DN 25L/32/40 male/male for union programme.

Flow Rates - L/s (+/- 5%)

3

Dial Setting

Flow SH1 (15-25mm)

Flow SH2 (25-40mm)

Dial Setting

0.5

0.003 3

0.044

0.6

0.015 3

0.095

0.7

0.030

3

0.145

0.8

0.045 3

0.196

0.9

0.060

0.246

3.7

0.476

1.401

1.0

0.075

0.290

3.8

0.489

1.432

1.1

0.090

0.341

3.9

0.502

1.457

1.2

0.105

0.391

4.0

0.516

1.489

1.3

0.120

0.442

4.1

0.526

1.514

3

Flow SH1 (15-25mm)

Flow SH2 (25-40mm)

3.3

0.422

1.281

3.4

0.436

1.312

3.5

0.450

1.338

3.6

0.463

1.369

1.4

0.135

0.492

4.2

0.537

1.533

1.5

0.150

0.543

4.3

0.548

1.558

1.6

0.166

0.593

4.4

0.559

1.577

1.7

0.182

0.644

4.5

0.570

1.602

1.8

0.198

0.694

4.6

0.581

1.621

1.9

0.214

0.738

4.7

0.592

1.647

2.0

0.230

0.789

4.8

0.603

1.672

2.1

0.246

0.839

4.9

0.614

1.697

2.2

0.262

0.890

5.0

0.625

1.722

2.3

0.278

0.940

5.1

0.633

1.741

2.4

0.294

0.991

5.2

0.641

1.767

2.5

0.310

1.041

5.3

0.649

1.785

2.6

0.324

1.073

5.4

0.657

1.811

2.7

0.338

1.098

5.5

0.665

1.830

2.8

0.352

1.129

5.6

0.673

1.855

2.9

0.366

1.161

5.7

0.681

1.880

3.0

0.380

1.192

5.8

0.689

1.899

3.1

0.394

1.218

5.9

0.697

1.924

3.2

0.408

1.249

6.0

0.705

1.949

balancing & flow control valves frese sH+ dynamic balancing valve

DN 15/20/25 male/male for union programme.

These Flow Rates are (+/- 15%)

June 2010

3.29

balancing & flow control valves frese eva two-way automatic balancing valve

frese EVA two-way automatic balancing valve Application Frese Eva is a valve particularly designed for the balancing of cooling and heating units. With it’s simple on/off control the valve can be used for many different applications, and at the same time advantage is derived from the dynamic control principle. By means of Frese Eva the optimum flow rate is ensured in each control area. This flow rate is maintained in spite of pressure fluctuations in the system. (A control area may be two fan coil units for a hotel room or a calorifier for a sports centre). Specification Valve Housing Body Brass (DZR) CW602N O-Rings EPDM Pressure Class PN25 Temp. Range 0 to +95°C Ambient Temp. Range 0 to +50°C Max. Diff. Pressure 400 kPa Flow Range 0.007 L/s to 0.68 L/s Size Range DN15-DN25 End Connections Threaded Female Weight 0.7kg Length of Stroke 2.15mm

2.

1.

3.

Extension piece for actuator

Spindle extension

Tradelink Industrial Eva Codes Size

15

Actuator Actuator Travel 4mm Actuator Types 24 V, on/off, normally closed 230 V, on/off, normally closed Power Consumption 1.8 Watt Closing and opening time Approx. 3min Force 100Nm Ambient Temperature 0 to +60°C Protection IP54 Weight (without adaptor, inc 1m wire) 100g Connection Wire 2 x 0.75mm2 PVC Unit includes a valve adaptor and 1.0m of wire. Design Features 1. Two valves in one. Replaces both the normal static valve(DRV) and two way valve. 3. No requirement on pipe lengths before and after the valve. 2. Built-in on/off function for electrically operated actuator. (normally closed) 4. Time consuming adjustment of the system is eliminated. 5. The valve automatically ensures the hydraulic balance, regardless of changing pressure conditions in the system. 6. The valve can be easily fitted into the system. 7. Integral optional P/T ports for needle system and/or drain. 8. Supplied with two colour coded P/T plugs as standard. 9. Small compact product. 20

25

24V, on/off, F&F 230V, on/off, F&F

Tradelink Frese Eva Accessory Codes

3.30

Accessory

P/T Extension Kit 50mm

P/T Extension Kit 100mm

Code

116157

116156

Extension piece for actuator

Spindle Extension DN15/20

Spindle Extension DN25


frese EVA two-way automatic balancing valve Size

15

20

25

L

102

110

119

Height inc. actuator

135

135

135

Electric Diagram - Example You may let the valve signal run the fan engine of the unit, so that the fan engine is not running when the valve is closed. Application Example The system is easily balanced by adjusting the pump in accordance with the required minimum pump head across the critical valve. When this pump head is available the system will be automatically balanced. Min. required pump head is the lowest differential pressure at which the cartridge can operate plus the pressure drop of the EVA valve at design flow. See cartridge data on page 3.32. L1 optional trafo to 24V

T

Actuator for Frese EVA

Relay N

-

-

-

It is recommendable to fit strainer and isolation ball valves.


Dimensions - mm

d

2x

P/T Plug Example: Frese no. 48-0012

June 2010

3.31


frese EVA two-way automatic balancing valve Specification

For Valves DN15-25, 0.007 - 0.680 L/s ID

1150 1170 1190 1210 1230 1260 1290 1300 1320 1350 1370 1400 1430 1460 1490 1510 1540 1570 1620 1725 1730 1735 1740 1745 1750 0700 0740 0770 0820 0860 0880 0920 0940 0990 1030 1060 1090

Flow L/s


Min DP kPa Housing

Cartridge/Orifice Type 10 0.007 7 0 0.010 7 0 0.012 7 0 0.015 7 0 0.021 8 0 0.024 9 0 0.029 10 0 0.032 10 0 0.036 11 0 0.043 11 0 0.049 12 0 0.057 12 0 0.067 12 1 0.078 12 1 0.089 13 1 0.097 13 1 0.111 13 2 0.132 14 3 0.151 14 3 Cartridge/Orifice Type 11 0.171 14 4 0.186 14 5 0.204 14 6 0.222 16 7 0.242 19 8 0.260 21 10 Cartridge/Orifice Type 20 0.283 22 12 0.300 22 13 0.332 22 16 0.371 23 20 0.412 23 24 0.439 23 28 0.493 24 35 0.509 24 37 0.578 25 48 0.625 26 56 0.644 27 60 0.680 28 67

Min DP total kPa 7 7 7 7 8 9 10 10 11 11 12 12 13 13 14 14 15 17 17 18 19 20 23 27 31

Housing The valve housing shall be made of hot stamped Brass in DR quality. The valve shall regulate flow by means of a replaceable cartridge. Pressure rating of the valve housing shall be PN25. The Kv value of the valve housing inclusive of the on/off control unit shall be no less than 3.0. Control Unit The valve shall be NC (normally closed). The valve shall be able to close completely against a DP of 4 Bar. Flow Regulator The flow regulating cartridge shall be made of brass in DR quality. The cartridge shall offer the opportunity to change the flow by replacing an orifice plate without changing the entire cartridge. The cartridge shall operate to one maximum pressure range only throughout the entire hydraulic system. Installation No requirements on pipe lengths before and after the valve. The valve body has flow direction indicated. A strainer is recommended according to good piping practises. Standard practise for balancing valves is to install on the return side of the terminal. The pipe system should be properly ventilated to avoid the risk of air-pockets. Glycol mixtures (both ethylene and propylene) up to 50% are applicable. See page 3.11.

34 35 38 43 47 51 59 61 73 82 87 95

For the pressure drop across the entire EVA valve add the pressure drop across the valve housing (Kv = 1.9) to the min. required differential pressure of the cartridge selected above. ID = four digit number on the orifice plate.

3.32


frese optima pressure independent control & balancing valve Frese OPTIMA pressure independent control valve (PICV) is used in heating and cooling systems in applications with Fan Coil Units, Air Handling Units or other terminal unit applications. Frese OPTIMA provides modulating control with full authority regardless of any fluctuations in the differential pressure of the system. Frese OPTIMA combines an externally adjustable automatic balancing valve, a differential pressure control valve and a full authority modulating control valve. Frese OPTIMA makes it simple to achieve 100% control of the water flow in the building, while creating high comfort and energy savings at the same time. An additional benefit is that no balancing is required if further stages are added to the system, or if the dimensioned capacity is changed. Design Features

A Frese strainer ball valve in the supply line combined with a Frese Optima (two way automatic balancing valve) in the return line of a cooling/heating unit.

June 2010

1. Less time to define the necessary equipment for a hydraulic balanced system (only flow data are required). 2. No need to calculate valve authority. The constant differential pressure across the modulating control component guarantees 100% authority. 3. Flexibility if the system is modified after the initial installation. 4. No further regulating valves required in the distribution pipework when Frese OPTIMA is installed at terminals. 5. Total number of valves minimized due to the 3-in-1 design. 6. Minimized commissioning time due to automatic balancing of the system. 7. Removable cartridge solution simplifies flushing procedure. 8. No minimum straight pipe lengths required before or after the valve. 9. High comfort for the end-s due to high precision temperature control. 10. Longer life due to less movements of the actuator. 11. Less energy consumption due to faster response and increased system stability. 12. The presetting function has no impact on the stroke; Full stroke modulation at all times, regardless the preset flow. 13. Automatic balancing eliminates overflows, regardless of fluctuating pressure conditions in the system. 14. Electrical actuator 0-10 V and 3 point control, normally closed. 15. Differential pressure operating range up to 400 kPa. 16. High flows with minimal required differential pressure due to advanced design of the valve. 17. More accurate control due to long 5mm stroke. 18. Higher presetting precision due to stepless analogue scale.

balancing & flow control valves frese optima pressure independent control & balancing valve

Application

3.33

Specification Valve Valve Housing and Flow Setting DZR Brass, CW602N Dp Controller PPS 40% Glass Spring Stainless Steel Diaphragm HNBR O-Rings EPDM Pressure Class PN25 Max. Diff. Pressure 400 kPa Medium Temp. Range 0ºC to 120ºC

H1

H1

H

H


frese optima pressure independent control & balancing valve

L

L

DN15 - DN32

The pipe system shall be properly ventilated to avoid risk of air pockets. Glycolic mixtures up to 50% are applicable (both ethylene and propylene). Frese A/S can accept no responsibility if another actuator is used instead of the Frese actuator

DN40 - DN50

Dimensions - mm Size

15

20

25

32

40

50

L

88

88

92

128

144

155

H

65

65

66

72

87

93

H1

145

145

145

152

219

225

Kg

0.90

0.91

1.00

1.52

2.55

3.20

15

20

25

32

40

50

Low Flow

0.022 - 0.174

0.036 - 0.292

0.064 - 0.478

High Flow

0.068 - 0.479

0.081 - 0.566

0.081 - 0.566

0.129 - 0.849

0.562 - 1.974

0.612 - 2.385

Flow Rate Range - l/s Size

Example: for high flow DN15, the maximum flow can be set between 0.068 and 0.417 l/s, according to design specifications.

Minimum Differential Pressure Range - kPa Size

15

20

25

Low Flow

14.5 - 16

14.5 - 16

14 - 16

High Flow

14 - 18

14 - 22

14 - 22

32

40

50

14.5 - 18

16 - 26

19 - 32

32

40

50

7.2

13.9

15.2

32

40

50

113614

115945

115946

116161

116162

116163

Minimum differential pressure depends on flow rate setting, refer to flow rate charts.

Flow Coefficients - m 3 /h Size

15

20

25

Kvs LF

1.6

2.6

4.3

Kvs HF

4.1

4.3

4.3

Tradelink Industrial Optima codes Size 24V /0..10V 24V /3 pos.

15

20

25

LF

113608

113609

113610

HF

113611

113612

113613

LF

116158

113616

113617

HF

116159

113615

116160

LF HF

230V /3 pos.

Tradelink Frese Extended P/T Point Kit Codes

3.34

Extension Length

50mm

100mm

Code

116157

116156


frese optima pressure independent control & balancing valve Actuator DN15-DN32 Characteristics Electrical, modulating, normally closed Protection Class IP 40 to EN 60529 Frequency 50/60 Hz Control Signal 0-10V DC, or 3 position Actuating Force 250 N Stroke 5.5 mm Ambient Operating Conditions +1°C to 50°C Storage -5°C to 50°C Humidity 5 to 85% r.F. Manual Operation 3mm hexagonal key Cable Length 1,5m Weight 350g Input Impedance >100k Ohm (DC 0...10v) Actuator DN40-DN50w Characteristics Electrical, modulating, normally closed Protection Class IP 54 to EN 60529 Frequency 50 Hz Control Signal 0-10V DC, or 3 position Actuating Force 400 N Stroke 6.5mm Ambient Operating Conditions -5°C to 50°C Storage -5°C to 50°C Humidity 5 to 95% r.F. Manual Operation Manual adjusting handle Cable Not included Weight 600g Input Impedance >100k Ohm (DC 0...10v) Manual Operation Manual operation should be performed after disconnecting from the power supply. If the operation is performed manually without disconnecting from the power, the supply must be disconnected and then reconnected, whereby the actuator will start the calibration process and correctly adjust itself. Do not forget that a manually operated valve must go through the calibration process before commencing normal operation again. Types & Operation Data Valve Dim

Function

Running time (50 Hz)

Supply Voltage

Power ConsumPtion

Parallel Operation No. of Actuator

DN15-DN32

DC 0..10 V

75s

AC/DC 24 V +/- 25%

2,5 VA

Max. 10

DN15-DN32

3 - position

150s/5.5mm

AC 24 V +/- 20%

0,8 VA

Max. 24

DN15-DN32

3 - position

150s/5.5mm

AC 230 V +/- 15%

6 VA

Max. 6

DN40-DN50

DC 0..10 V

43s/6,5mm

AC 24 V +/- 20%

4,5 VA

Max. 10

DN40-DN50

3 - position

43s/6,5mm

AC 24 V +/- 20%

2,0 VA

DN40-DN50

3 - position

170s/6,5mm

AC 230 V +/- 15%

2,5 VA

June 2010


Technical data

3.35



3.36

4

F4

5

2 1

Design The design of Frese OPTIMA combines high performance with small size and compact construction. The main components of the valve are: 1. The pressure control cartridge 2. The modulating control component 3. The presetting scale (not accessible when the actuator is mounted) 4. The P/T plugs (optional) 5. The electrical actuator Commissioning

3

The Frese Optima is delivered to Australian customers with a commissioning cap and the pressure control cartridge installed. The commissioning cap keeps the modulating component in a fully open position to aid the flushing process. For automatic balancing valves a backflush is recommended as a forward flush with the pressure control cartridge installed will begin to operate and limit the flow to the valves maximum flowrate. During flushing the valve must be in the fully open position. Tags, labels, and a presetting list can be supplied with each valve upon request. At this point the can then adjust the presetting dial to the design flow. Once the flow is set, the actuator can be mounted (this also prevents tampering of the presetting) and the valve is ready to operate. Pre-settings can be checked simply via flow vs. presetting graphs page 3.38 to 3.42. Specification text

Actuator 5

The actuated valve shall operate by means of an automatic balancing cartridge that can be removed without dismantling the valve. The presetting of the valve shall not influence the length of the stroke. The pressure class shall be PN25. The differential pressure operating range shall be up to 400kPa. The valve shall operate by means of an electrical modulating actuator.

Pre-setting scale 3

2

Modulating control component

1

4 P/T

plugs

Pressure control cartridge


frese optima pressure independent control & balancing valve The innovative design of Frese OPTIMA introduces a modulating control component that retains 100% authority at all times.

Flow (l/h)

With the Frese OPTIMA, there are two independent movements for the presetting and the modulating function. During presetting, the inlet area moves radially without interfering with the length of the stroke. During modulating, the inlet area moves axial taking advantage of the full stroke. In the example, the flow is modulated throughout the full range from 10 to 0V regardless of the preset flow (i.e. 625 l/h or 300 l/h). Whilst the control component provides proportional modulation irrespective of the preset flow, the automatic balancing cartridge guarantees that the flow will never exceed the maximum preset flow. Regardless of pressure fluctuation in the system, the maximum flow is kept constant up to a maximum differential pressure of 400kPa.

(kPa)

Flow Rate vs. Voltage (Preset flow: 625 l/h, 300 l/h) Voltage (V )

Pre-setting

Flow l/h

Flow Rate vs. Differential Pressure (Voltage: 10V, 6V, 3V) Flow (l/h)

10V

6V

3V


Operation Principle

Flow Rate vs. Differential Pressure (Preset flow: 625 l/h, 300 l/h)

(kPa)

June 2010

3.37



3.38

Frese OPTIMA DN15, Low Flow

Flow l/s l l

0.194

Flow l/h l l 700

0.2

0.4

0.6

Kv (m3/h) K (m 0.8 )

1.0

1.2

1.4

1.6

min. Δp kPa i

16.0 0.167

600

0.139

500 15.7

0.111

400

0.083

300

0.056

200

15.1

14.5 0.028

100

0

0

0

0.5

1

1.5

1.3

2.0

2

Pre-set

2.5

3

3.5

4

3.1

3.5

3.8

4.1

Frese OPTIMA DN15, High Flow

Flow l/s

Flow l/h

0.500

1800

0.444

1600

0.389

1400

0.333

1200

0.278

1000

0.222

800

0.167

600

0.111

400

0.056

200

0

0

0.7

Kv (m3/h) 2.5

min. Δp kPa

18.0

17.0

15.8

14.0

0

0.5

1

1.5

2

Pre-set

2.5

3

3.5

4


frese optima pressure independent control & balancing valve Flow l l/s l

Flow l/h F l

0.306

1100

0.278

1000

0.250 0 25

900 900

0.222 0 222

800 800

0.194 0 19

700 700

0.167 0 16

600 600

0.139 0 13

500 500

0.111 0 111

400 00

0.083 0 083

300 300

0.056 0 05

200 200

0.028 0 02

100 100

0

0.3 03

0.7 7

1.0 1

3 Kv (m (m /h) h)

1.4 1

1.7 17

2.0 20

2.3 23

min. Δp Δp kPa kP

2.6 26 16.0

15.7 15

15.1 15 1

14.5 1 5

0 00 0

0.5 5

1 1

1.5 15

1.5

2.2

2 2

Pre-set P

2.5 25

3 3

3.5 35

4

3.3

3.8

4.2

4.3

Frese OPTIMA DN20, High Flow

Flow l/s

Flow l/h

0.611

2200

0.556

2000

0.500

1800

0.444

1600

0.389

1400

0.333

1200

0.278

1000

0.222

800

0.167

600

0.111

400

0.056

200

0

0

0.8

Kv (m3/h) 2.7

min. Δp kPa

22.0

20.0

June 2010

18.0

14.0

0

0.5

1

1.5

2

Pre-set

2.5

3

3.5


Frese OPTIMA DN20, Low Flow

4

3.39



3.40

rFrese s OOPTIMA TT MADN25 DN 2Low Flow ow Flow Flo l/s l

Flow Flow l/h h

0.500 0 500

1800 1800

0.444 0

1600 1600

0.389 0 389

1400 1 00

0.333

1200

0.278 0 278

1000 1000

0.222 0 222

800 800

0.167

600

0.111

400

0.056 0 056

200 200

0.6 0

1.3 13

2.0 20

3 Kv Kv (m m3/h) h) 2.6

2

3.2 32

3.7 3

4.1 1

min. m Δp Δp kPa k a

43 3 16 0

15 5 5

14 8

14.0

0

0 0 0

0.5

1

1.5

1.5

2.2

2

Pre-sett

2.5

3

3.5

4

3.3

3.8

4.2

4.3

rese DN25 Flow rFrese se O OOPTIMA T MA MADN25 DN2HighHigh i h Flow l/s

Flow l/h

0.611

2200

0.556

2000

0.500

1800

0.444

1600

0.389

1400

0.333

1200

0.278

1000

0.222

800

0.167

600

0.111

400

0.056

200

0

0

0.8

Kv (m3/h) 2.7

min. Δp kPa 22.0

20.2

18.0

14.0

0

0.5

1

1.5

2

Pre-set

2.5

3

3.5

4


frese optima pressure independent control & balancing valve ese OPTI

Flow l/s

Flow l/h

0.903

3250

0.833

3000

0.764

2750

0.694

2500

0.625

2250

0.556

2000

0.486

1750

0.417

1500

0.347

1250

0.278

1000

0.208

750

0.139

500

0.069

250

0

0

1.3

2.4

3.5

Kv (m3/h) 4.5

5.5

6.2

6.8

7.2

min. ∆p kPa

18.0

17.0

16.0

14.5

0

0.5

1

1.5

5.1

8.7

11.2

2

Pre-set

2.5

3

3.5

4

13.6

13.8

13.8

13.9

Frese OPTIMA DN40

Flow l/s

Flow l/h

Kv (m3/h) 12.8

min. Δp kPa

2.083

7500

1.994

7000

26 25

1.806

6500

22.5

1.667

6000

1.528

5500

1.389

5000

1.250

4500

1.111

4000

0.972

3500

0.833

3000

0.694

2500

0.556

2000

0.417

1500

0.278

1000

0.139

500

0

0

June 2010

20

18

16.5

16

0

0.5

1

1.5

2

Pre-set

2.5

3

3.5


Frese OPTIMA DN32

4

3.41



3.42

Frese OPTIMA DN50

Flow (l/s)

Flow (l/h)

2,500

9000

2,361

8500

2,222

8000

1,994

7500

1,806

7000

1,667

6500

1,528

6000

1,389

5500

1,250

5000

1,111

4500

0,972

4000

0,833

3500

0,694

3000

0,556

2500

0,556

2000

0,417

1500

0,278

1000

0,139

500

0

0

5,1

9,2

11,9

Kv (m3/h) 13,4

14,4

15,0

15,1

15,2

min. Δp kPa 32 30 29 28 25

22

19

0

0.5

1

1,5

2

Pre-set

2,5

3

3,5

4

Settings & Flow - L/s Pre-set

DN15 LF

DN15 HF

DN20 LF

DN20 HF

DN25 LF

DN25 HF

DN32

DN40

DN50

0.5

0.022

0.068

0.036

0.081

0.064

0.081

0.129

0.562

0.612

0.6

0.026

0.082

0.044

0.097

0.078

0.097

0.154

0.651

0.737

0.8

0.035

0.110

0.059

0.129

0.106

0.129

0.205

0.825

0.980

1

0.043

0.139

0.073

0.160

0.135

0.160

0.256

0.983

1.205

1.2

0.052

0.168

0.087

0.192

0.164

0.192

0.306

1.125

1.400

1.4

0.061

0.197

0.102

0.224

0.193

0.224

0.357

1.258

1.574

1.6

0.069

0.225

0.117

0.256

0.222

0.256

0.407

1.380

1.725

1.8

0.078

0.253

0.132

0.288

0.251

0.288

0.456

1.492

1.854

2

0.087

0.280

0.146

0.320

0.279

0.320

0.504

1.595

1.964

2.2

0.096

0.306

0.160

0.352

0.306

0.352

0.550

1.683

2.050

2.4

0.105

0.332

0.175

0.383

0.333

0.383

0.595

1.760

2.123

2.6

0.113

0.357

0.190

0.414

0.358

0.414

0.637

1.826

2.184

2.8

0.121

0.379

0.205

0.444

0.381

0.444

0.677

1.879

2.236

3

0.130

0.401

0.219

0.472

0.403

0.472

0.715

1.921

2.279

3.2

0.139

0.421

0.233

0.498

0.423

0.498

0.749

1.947

2.314

3.4

0.148

0.439

0.248

0.520

0.441

0.520

0.779

1.963

2.343

3.6

0.156

0.454

0.262

0.540

0.456

0.540

0.806

1.971

2.366

3.8

0.165

0.468

0.277

0.556

0.468

0.556

0.830

1.974

2.381

4

0.174

0.479

0.292

0.566

0.478

0.566

0.849

1.974

2.385


frese circon+/temcon+ thermostatic valve CirCon+ and TemCon+ are control valves designed for domestic hot water installations with circulation. The valves automatically control the temperature of the water that circulates through the valves. Thus the thermal balance is ensured throughout the domestic hot water system. The valve is adjusted on a scale to a desired temperature in the interval between 37°C and 65°C. TemCon+ is equipped with a by- located outside the thermal part of the valve. So, TemCon+ is suited for hot water installations with bacterial problems, eg Legionella. Here a procedure of raising the temperature of the water to between 70°C and 80°C is carried out at certain intervals. Specification Body DR Brass CW602N O-Rings EPDM Springs Stainless Steel Element Wax Plastic Parts POM, ABS, PC By- TemCon+ Stainless Steel Surface Coating Tin/Nickel Temperature Range 37°C - 65°C Accuracy +/- 2°C < 100 kPa Dp P-Band 10°C (Xp = 10K) Max. Kv-Value 1.10 (m3/h) Recommended Differential Pressure 3-10 kPa Max. Diff. Pressure 100 kPa Max. Static Pressure 1000 kPa Pressure Class CirCon+: PN16, TemCon+: PN10 Connections Threaded Actuator Controlled By-, TemCon+ Kv-value, Open By- Running Time Power Consumption Supply Voltage

0.3 (m3/h) 180 sec from closed to fully open 2W 24 V DC/AC or 230 V AC

balancing & flow control valves frese circon+/temcon+ thermostatic valve

Application

Design Features 1. The thermostatic element is located out of with the circulating water, and its dry location prevents scale problems. 2. The setting of the valves is stepless between 37°C and 65°C at an accuracy of +/-2°C. 3. Each valve is calibrated seperately. 4. The valves are coated with tin/nickel, which is an anticorrosive coating. 5. TemCon+ has a by- for high-temperature operation from 70°C to 80°C. 6. TemCon+ by- adjustment occurs by hand or actuator.

Tradelink Industrial TemCon+ Codes Size

15

20

F&F F&F w/ball vlv M&M w/ball vlv

Tradelink Industrial CirCon+ Codes

With Actuated By-

Size

F&F

F&F

F&F w/ball vlv

F&F w/ball vlv

M&M w/ball vlv

M&M w/ball vlv

June 2010

15

20 088747

3.43

H


frese circon+/temcon+ thermostatic valve

Ball e valve

B

L

AllCirCon + valves have the approval of the Danish VA-Authorities.

Dimensions - mm CirCon+ Size

15

20

20*

20*

Ends

F&F

F&F

F&F

M&M

L

63

63

79

79

B

32

32

37

37

H

96

96

96

96

kg

0.5

0.5

0.6

0.6

* with integral ball valve.

Operation Principle - Circon+ Thermal Control Circon+ controls on the basis of the temperature of the water that circulates through the valve. If the valve is set to a temperature of e.g. 50°C, and the temperature of the circulating water is under 50°C, the valve opens. If the temperature is over 50°C, the valve closes. To Set The temperature setting is between 37°C and 65°C. Remove the cap, and the temperature is easily set by a screwdriver as shown here. Application Example - CirCon+ Draw-off taps

Draw-off taps

Draw-off taps

CR

Hot-water tank

Cold water C

Cirkulating pump

R

CR

Domestic hot water C

Distribution pipe

Frese no. 35-1138

3.44

It is recommendable to install pressure test points on both sides of the critical CirCon+ valve in the installation for the verification of differential pressure.


frese circon+/temcon+ thermostatic valve T

The CirCon+ and TemCon+ is dimensioned on the basis of the thermal loss in the circuit, in which it is located.

mC o

Example In an installation with 4 floors and basement a circulation line is dimensioned. The following parameters should be known for the calculation of the flow rate.

H

Length of Pipe 30m, total length of pipe controlled by thermostatic valve.

0

0

Thermal Loss 9 W/m of pipe, Thermal loss in an external 27mm pipe with 30mm insulation and a difference of 40°C between room temperature and temperature of fluid. Temp Differential 5°C, temperature in hotwater tank is 55°C. The CirCon+ was set to 50°C on the scale.

5

L

B

The flow rate can be found from the following formula:

So, the total quantity of water from 3 delivery pipes to the circulating pump is approx. 138 l/h (3 x 46) The Kv-value of the thermostatic valve at 46l/h and a differential pressure of 10 kPaD across the valve can be found from the following formula:

Q = (30m x 9W/m) x 0.86 = 46 l/h

Kv =

Q

= (46/SQRT 10)/100 = 0.15

SQRT(Dp)

5°C Dimensions - mm TemCon+ Size

15

20

20*

20*

Ends

F&F

F&F

F&F

M&M

L

63

63

79

79

B

58

58

58

58

86

H

99

99

99

99

120

kg

0.6

0.6

0.6

0.6

0.75

* with integral ball valve.

Operation Principle - TemCon+ Control at Two Operating Temperatures TemCon+ was designed to control two sets of temperatures:

with Act. 79


Dimensioning Example

Normal Operating Temperature Normal operation occurs at temperatures from approx. 50°C to 60°C. That is economic operation at low precise flow rates, which ensures a high level of comfort at all draw off taps and exact termperature in all circuits. High Operating Temperature High operating temperature is used at intervals for the pasteurization of domestic water at 70°C to 80°C. To Set The plastic cap is dismantled by means of a screwdriver that fits into the slot in the cap. Then the manually operated by- can be set steplessly to a Kv-value between 0.0 and 0.3.

June 2010

3.45

Application Example - TemCon+ Draw-off taps

Draw-off taps

Draw-off taps

Hot water tank

Cold water

Circulating pump

Hot water-/ circulation pipe

BMS

Frese no. 35-1138

It is recommendable to install pressure test points on both sides of the critical TemCon+ valve in the installaton for the verification of differential pressure.

The control during high temperature operation occurs as the actuator mounted on the by- opens to a fixed Kv-value of 0.3.

Dimensioning Example During normal operation the TemCon+ is dimensioned in the same way as the Circon+. TemCon+ - Actuated by- The automatic heater or BMS opens the by- to a fixed Kv-value of 0.3, continuing with the above example: Length of Pipe

30m, same as above.

Thermal Loss 14 W/m of pipe, same pipe as above except with temperature difference of 60°C. Temp Differential 8°C, temperature in hotwater tank is 80°C and temperature after TemCon+ is 72°C.

The differential pressure across the TemCon+ at the given location in the system should be known in order to find the value of the adjustable by-. Here we use 35 kPaD across the valve and Kv can be found as follows: Kv =

Wiring Diagram - TemCon+

L

8°C

The minimum differential pressure of the TemCon+ valve at Kv 0.3: Dp = [45 / (0.3 x 1000)]2 = 2 kPaD Hydraulic Balance: The application of a circulating pump with proportional control of the pump pressure is recommended if a fixed Kv-value of 0.3 is too much for the installation so that the hydraulic balance is upset. The pump compensates for increased flow by increasing the differential pressure.

= (0.045/SQRT 0.35) = 0.08

Normal Operation: During normal operation is tis recommended to close the adjustable by- to gain all the benefits of the thermal control of the TemCon+ valve.

The flow rate for TemCon+ by-: Q = (30m x 14W/m) x 0.86 = 45 l/h

Q

SQRT(Dp)

2 3 0 V DC/ 2 4 V


frese circon+/temcon+ thermostatic valve

N

Actuator

Installation of actuator. The actuator must not be installed upside down.

TemCon+ - Adjustable by- On the basis of the example above: Q = (30m x 14W/m) x 0.86 = 45 l/h

3.46

8°C


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