Econ Double Regulating Valves

ECONDouble RegulatingValves

137page 137page 13page 28

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HVAC Product Catalogue page 65

Double Regulating Valves ( DRV)

General Design & Application: The Double Regulating Valves are also called Balancing Valves. Econosto Double Regulating and Commissioning Valves are installed in the pipe work of chilled water air conditioning and hot water central heating systems as well as potable water systems and serve to achieve a hydronic balance between the various circuits of the system. The balance

is achieved by a pre-setting with memory position. The required values of pre-setting can be obtained from the flow charts. All intermediate values are infinitely adjustable. The selected pre-setting can be read-off two scales (basic scale and fine adjustment scale). The Econosto double regulating and commissioning valves have two threaded ports for fill and drain ball valves or pressure test points for the measurement of differential pressure. The Econosto double regulating and

commissioning valves are delivered with 2 blind plugs as a standard unless test points are requested. The Econosto double regulating and commissioning valves may be installed in either the supply or the return pipe. The flow charts are valid for both cases provided the direction of flow conforms with the arrow marked on the valve body.

Advantages of Econosto DRVs: - One valve for 3 functions:

Pre-setting, measuring and isolating - Low pressure loss

Unique design and oblique pattern - Infinitely adjustable pre-setting

Exact measurement of pressure loss by means of the pressure test points.

- Patented measuring channel

designed around the stem assembly to the test points ensures the best possible accuracy between differential pressure measured at the pressure test points and the actual differential pressure of the valve.

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Distribution of flow : The main reason for these problems is that incorrect flows are available in the various circuits. If this is the case, the problem may be solved by installing a double regulating and commissioning valves or flow regulators in the corresponding pipes. The course of pressure in a circuit makes clear why this occurs.

total to guarantee a sufficient supply to appliance 4.This will however, inevitably result in a excessive differential pressure at the appliances 1 to 3 leading to an increased flow at these appliances and thus to an increased energy consumption. To remedy this, double regulating and commissioning are installed. The excess in differential pressure is now absorbed by the double regulating and commissioning valves. The desired flow rate may be controlled and set. To be able to control appliance 4 as well it is recommended to install a double regulating and commissioning valve here too. The correct supply of each appliance is now guaranteed.

The illustration shows that the pump has to produce a differential pressure of at least delta P -


Why do we need to Balance Air Conditioning Systems ? Balancing of heating and chilled water air conditioning systems is necessary to avoid the following problems : 1. Some rooms almost never achieve the desired room temperature or are not cooled sufficiently.

This problem especially arises in case of influence of other heat sources.

2. After changing over from low temperature to heating operation, parts of the system are only heated after a long time.

3. Fluctuating room temperatures especially arising during low demand periods. 4. High energy consumption although the required room temperature regulator is installed. Even high quality regulators may not solve this problem.


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Wrong flow rates in the various circuits lead to an increased energy consumption. On the one hand, a higher pump capacity must be provided to guarantee a sufficient supply of each appliance and on the other hand appliances being installed at a favourable hydronic position are then over supplied. This will result in an increased room temperature or, in chilled water air conditioning systems, in too low a room temperature.If the average temperature in a building exceeds the nominal value by 1 degree C, the energy consumption is increased by 6 - 10 % . In chilled water air conditioning systems , temperatures being 1 degree C too low will result in an increase in energy consumption of about 15%. Note: Periodical maintenance is required (at least once in 6 months) for large diameter Balancing Valves (DRVs of 200mm & above). It is suggested to open and close the balancing valves (DRV) a few times once in every 6 months to ensure that no contaminants are trapped with in the trim of the valve. It is also recommended to install another isolating valve (Wafer butterfly valves are recommended) on the discharge side of large size Balancing Valves (DRV) for any required maintenance or replacement of equipment or balancing valves.

Energy Saving :

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Distribution of flow : The main reason for these problems is that incorrect flows are available in the various circuits. If this is the case, the problem may be solved by installing a double regulating and commissioning valves or flow regulators in the corresponding pipes. The course of pressure in a circuit makes clear why this occurs.

total to guarantee a sufficient supply to appliance 4.This will however, inevitably result in a excessive differential pressure at the appliances 1 to 3 leading to an increased flow at these appliances and thus to an increased energy consumption. To remedy this, double regulating and commissioning are installed. The excess in differential pressure is now absorbed by the double regulating and commissioning valves. The desired flow rate may be controlled and set. To be able to control appliance 4 as well it is recommended to install a double regulating and commissioning valve here too. The correct supply of each appliance is now guaranteed.

The illustration shows that the pump has to produce a differential pressure of at least delta P -


Why do we need to Balance Air Conditioning Systems ? Balancing of heating and chilled water air conditioning systems is necessary to avoid the following problems : 1. Some rooms almost never achieve the desired room temperature or are not cooled sufficiently.

This problem especially arises in case of influence of other heat sources.

2. After changing over from low temperature to heating operation, parts of the system are only heated after a long time.

3. Fluctuating room temperatures especially arising during low demand periods. 4. High energy consumption although the required room temperature regulator is installed. Even high quality regulators may not solve this problem.


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Wrong flow rates in the various circuits lead to an increased energy consumption. On the one hand, a higher pump capacity must be provided to guarantee a sufficient supply of each appliance and on the other hand appliances being installed at a favourable hydronic position are then over supplied. This will result in an increased room temperature or, in chilled water air conditioning systems, in too low a room temperature.If the average temperature in a building exceeds the nominal value by 1 degree C, the energy consumption is increased by 6 - 10 % . In chilled water air conditioning systems , temperatures being 1 degree C too low will result in an increase in energy consumption of about 15%. Note: Periodical maintenance is required (at least once in 6 months) for large diameter Balancing Valves (DRVs of 200mm & above). It is suggested to open and close the balancing valves (DRV) a few times once in every 6 months to ensure that no contaminants are trapped with in the trim of the valve. It is also recommended to install another isolating valve (Wafer butterfly valves are recommended) on the discharge side of large size Balancing Valves (DRV) for any required maintenance or replacement of equipment or balancing valves.

Energy Saving :

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137page 137page 13page 28AJ-03-001 page 137page 13

Double Regulating Valves


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FeaturesPN 25Variable OriceBronze Double Regulating and Commissioning ValveY PatternThreaded ends to BS 21 (BSPP)Variable Orice with liner scale and circular scale ( ne adjustment )

Hydrostatic Test PressureBody : 37.5 barSeat : 27.5 bar

Pressure / Temperature Rating25 bar at -10 to 120 deg C

Maintenance free valve. Low flow resistance due to unique design. Complies to BS 7350 accuracy requirements. Tight closure of valve is assured by use of PTFE disc insert. Hand wheel embraces a vernier scale for accurate setting. Valves have unique design which enables the disc to be locked in the set Valve can be sealed in the set position with the sealing wire and lead seal.

Two ports (inlet/outlet) are available on the body of the DRV (Fig: 2601V).

These points are for fixing the measuring nipples or test plugs for the - measurement of flow / delta P (balancing).

position.

Fig . 2601V

ECON Bronze Double Regulating Valve

___

_____VS S

Flowrate (l/s)

Differential Pressure (signal) through the pressure test points of the valve (kPa)

VS Flow coefcient through the pressure test points of the valve (m / hour) 3

Flow Rate

Brass Self Closing Test Plug - 1/4"

Fig . 2922




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Component Material DIN BS 01 Bronze G-CuSn5ZnPb (Rgs) 1400LG202 DZR Brass03 DZR Brass

04 DZR Brass05 PTFE

No

06 07

BodyStemDiscBonnetSeat RingO-RingCap / Knob

EPDMABS

---PTFE

--

2874 CZ1322874 CZ1322874 CZ132PTFE--

Material Specication

Dimensions & Weights

Nominal Size Dimensions Weight

D (Inches) L (mm) H (mm) Kv - Open (m /h) Kg1/23/41

1 1/41 1/2

2

90102110121142161

909090

116116116

2.64.36.6

14.522.533.1

0.4600.5200.6600.9601.3101.880

3

ASTMB62 C83600---PTFE--

Fig . 2601V


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FeaturesPN 25Variable OriceBronze Double Regulating and Commissioning ValveY PatternThreaded ends to BS 21 (BSPP)Variable Orice with liner scale and circular scale ( ne adjustment )

Hydrostatic Test PressureBody : 37.5 barSeat : 27.5 bar


Maintenance free valve. Low flow resistance due to unique design. Complies to BS 7350 accuracy requirements. Tight closure of valve is assured by use of PTFE disc insert. Hand wheel embraces a vernier scale for accurate setting. Valves have unique design which enables the disc to be locked in the set Valve can be sealed in the set position with the sealing wire and lead seal.

Two ports (inlet/outlet) are available on the body of the DRV (Fig: 2601V).

These points are for fixing the measuring nipples or test plugs for the - measurement of flow / delta P (balancing).

position.

Fig . 2601V

ECON Bronze Double Regulating Valve

___

_____VS S

Flowrate (l/s)

Differential Pressure (signal) through the pressure test points of the valve (kPa)

VS Flow coefcient through the pressure test points of the valve (m / hour) 3

Flow Rate

Brass Self Closing Test Plug - 1/4"

Fig . 2922




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Component Material DIN BS 01 Bronze G-CuSn5ZnPb (Rgs) 1400LG202 DZR Brass03 DZR Brass

04 DZR Brass05 PTFE

No

06 07

BodyStemDiscBonnetSeat RingO-RingCap / Knob

EPDMABS

---PTFE

--

2874 CZ1322874 CZ1322874 CZ132PTFE--

Material Specication



D (Inches) L (mm) H (mm) Kv - Open (m /h) Kg1/23/41

1 1/41 1/2

2

90102110121142161

909090

116116116

2.64.36.6

14.522.533.1

0.4600.5200.6600.9601.3101.880

3

ASTMB62 C83600---PTFE--

Fig . 2601V


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FeaturesPN 16Variable OriceCast Iron Double Regulating and Commissioning ValveConrms BS 5152 ( EN 13789 )Y PatternFlanged to BS 4504 / DIN PN 16 ( EN1092 )Variable Orice with liner scale and circular scale ( ne adjustment )

Hydrostatic Test PressureBody : 24 barSeat : 17.6 bar

Face to Face DimensionsEN 558 - 1 Basic Series 1


Maximum Differential PressureDN 65 - DN 200 : 16 barDN 250 : 6 barDN 300 : 4 bar

Fig . 2920W

Complies to BS 7350 requirements Hand wheel embraces a vernier scale for accurate setting.

Valves have unique design which enables the disc to be locked in the set - position with a screwdriver.

Valve is supplied with a screw driver secured to the hand wheel. Two points (inlet/outlet) are available on the body of the valve for fixing the -

measuring nipples / test plugs for measurement of flow / delta P(balancing).

ECON Cast Iron Double Regulating Valve




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D (mm) D (mm) L (mm) H(mm) Kg6580

250

100125150200

300

180180180250250250420420

290310350400480600730850

293305323353388453575645

18.023.033.549.062.096.0

195.0315.0

Material SpecicationComponent Material DIN BS

01 Cast Iron 1691GG25 1561-GJL-25002 CI+EPDM Coated02 a SS+EPDM Ring

03 Brass04 Stainless Steel

No

05 0607 08 09 10

BodyDisc DN 65 - 200Disc DN 250 & 300Disc Nut

Hand Wheel

StemO-RingBonnetGasket

NutGland

EPDMCast IronGraphiteGGG40+Epoxy CoatingCarbon SteelBrass

1691GG25-X20Cr13X10Cr13

1691GG25-

----

1561-GJL-250-420 S37410S21-1561-GJL-250----

11 12 Adjusting Bolt

Position Indicator PlasticBrass

--

--

13 Bolt Carbon Steel - -

BSA126 CI BA126 CI B-AISI 420AISI 420-A126 CI B---B16 C36000-B16 C36000-

Fig . 2920WDN 65 - DN 200 DN 250 - DN 300


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FeaturesPN 16Variable OriceCast Iron Double Regulating and Commissioning ValveConrms BS 5152 ( EN 13789 )Y PatternFlanged to BS 4504 / DIN PN 16 ( EN1092 )Variable Orice with liner scale and circular scale ( ne adjustment )

Hydrostatic Test PressureBody : 24 barSeat : 17.6 bar

Face to Face DimensionsEN 558 - 1 Basic Series 1


Maximum Differential PressureDN 65 - DN 200 : 16 barDN 250 : 6 barDN 300 : 4 bar

Fig . 2920W

Complies to BS 7350 requirements Hand wheel embraces a vernier scale for accurate setting.

Valves have unique design which enables the disc to be locked in the set - position with a screwdriver.

Valve is supplied with a screw driver secured to the hand wheel. Two points (inlet/outlet) are available on the body of the valve for fixing the -

measuring nipples / test plugs for measurement of flow / delta P(balancing).

ECON Cast Iron Double Regulating Valve




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D (mm) D (mm) L (mm) H(mm) Kg6580

250

100125150200

300

180180180250250250420420

290310350400480600730850

293305323353388453575645

18.023.033.549.062.096.0

195.0315.0

Material SpecicationComponent Material DIN BS

01 Cast Iron 1691GG25 1561-GJL-25002 CI+EPDM Coated02 a SS+EPDM Ring

03 Brass04 Stainless Steel

No

05 0607 08 09 10

BodyDisc DN 65 - 200Disc DN 250 & 300Disc Nut

Hand Wheel

StemO-RingBonnetGasket

NutGland

EPDMCast IronGraphiteGGG40+Epoxy CoatingCarbon SteelBrass

1691GG25-X20Cr13X10Cr13

1691GG25-

----

1561-GJL-250-420 S37410S21-1561-GJL-250----

11 12 Adjusting Bolt

Position Indicator PlasticBrass

--

--

13 Bolt Carbon Steel - -

BSA126 CI BA126 CI B-AISI 420AISI 420-A126 CI B---B16 C36000-B16 C36000-

Fig . 2920WDN 65 - DN 200 DN 250 - DN 300


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0.5

0.7

1.0

1.3

1.5

1.7

2.0

2.3

2.5

2.7

3.0

3.3

3.5

4.0

33

Fig 2601V : Size 15mm (1/2 ")Kvs(m /h)Knob Turns

2.67 2.67 2.442.44 2.252.25 1.751.75 1.351.35 1.181.18 1.061.06 0.940.94 0.810.81 0.750.75 0.680.68 0.550.55 0.440.44 0.370.374.0 4.0 3.53.5 3.33.3 3.03.0 2.72.7 2.52.5 2.32.3 2.02.0 1.71.7 1.51.5 1.31.3 1.01.0 0.70.7 0.50.5

Knob Setting / Turns

p =

Sig

nal (

kPa)

Q (l/s) - FlowrateQ (l/s) - Flowrate

33

Fig 2601V : Size 20mm (3/4")Kvs(m /h)Knob Turns

4.10 4.10 3.403.40 2.902.90 2.202.20 1.701.70 1.501.50 1.301.30 1.201.20 1.001.00 0.900.90 0.800.80 0.700.70 0.500.50 0.400.404.0 4.0 3.53.5 3.33.3 3.03.0 2.72.7 2.52.5 2.32.3 2.02.0 1.71.7 1.51.5 1.31.3 1.01.0 0.70.7 0.50.5

0.5

0.7

1.0

1.3

1.5

3.5

1.7

2.0

2.3

2.5

3.0

3.3

3.5

4.0



Double Regulating Valvess

p =

Sig

nal (

kPa)

s

10.10.011

10

100

100

10

10.01 0.1 1.0


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Fig 2601V : Size 25mm (1")Kvs(m /h)Knob Turns

6.5 6.5 5.95.9 5.65.6 5.15.1 4.84.8 4.54.5 3.53.5 2.92.9 2.72.7 2.42.4 2.02.0 1.61.6 1.21.24.0 4.0 3.53.5 3.03.0 2.72.7 2.52.5 2.32.3 2.02.0 1.71.7 1.51.5 1.31.3 1.01.0 0.70.7 0.50.5


p =

Sig

nal (

kPa)


Fig 2601V : Size 32mm (1 1/4 ")

0.5

0.7Knob Setting / Turns



s

0.5

0.7

1.0

1.3

1.5

1.7 2.

0

2.3

2.5

2.7

3.0

3.5 4.0

33Kvs(m /h)Knob Turns

12.012.0 11.211.2 10.410.4 8.68.6 7.67.6 6.56.5 5.15.1 4.44.4 4.14.1 3.73.7 3.33.3 2.62.6 1.41.44.0 4.0 3.53.5 3.03.0 2.72.7 2.52.5 2.32.3 2.02.0 1.71.7 1.51.5 1.31.3 1.01.0 0.70.7 0.50.5

1.0

1.3

1.5

2.0

2.3

2.5

2.7

3.0

3.5

4.0

1.7

1010.011

10

100

0.1

p =

Sig

nal (

kPa)

s

1010.011

10

100

0.1

p =

Sig

nal (

kPa)

s

0.011

10

100

1010.1

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0.5

0.7

1.0

1.3

1.5

1.7

2.0

2.3

2.5

2.7

3.0

3.3

3.5

4.0

33

Fig 2601V : Size 15mm (1/2 ")Kvs(m /h)Knob Turns

2.67 2.67 2.442.44 2.252.25 1.751.75 1.351.35 1.181.18 1.061.06 0.940.94 0.810.81 0.750.75 0.680.68 0.550.55 0.440.44 0.370.374.0 4.0 3.53.5 3.33.3 3.03.0 2.72.7 2.52.5 2.32.3 2.02.0 1.71.7 1.51.5 1.31.3 1.01.0 0.70.7 0.50.5


p =

Sig

nal (

kPa)


33

Fig 2601V : Size 20mm (3/4")Kvs(m /h)Knob Turns

4.10 4.10 3.403.40 2.902.90 2.202.20 1.701.70 1.501.50 1.301.30 1.201.20 1.001.00 0.900.90 0.800.80 0.700.70 0.500.50 0.400.404.0 4.0 3.53.5 3.33.3 3.03.0 2.72.7 2.52.5 2.32.3 2.02.0 1.71.7 1.51.5 1.31.3 1.01.0 0.70.7 0.50.5

0.5

0.7

1.0

1.3

1.5

3.5

1.7

2.0

2.3

2.5

3.0

3.3

3.5

4.0




sp

=S

igna

l (kP

a)s

10.10.011

10

100

100

10

10.01 0.1 1.0


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6.5 6.5 5.95.9 5.65.6 5.15.1 4.84.8 4.54.5 3.53.5 2.92.9 2.72.7 2.42.4 2.02.0 1.61.6 1.21.24.0 4.0 3.53.5 3.03.0 2.72.7 2.52.5 2.32.3 2.02.0 1.71.7 1.51.5 1.31.3 1.01.0 0.70.7 0.50.5


p =

Sig

nal (

kPa)


Fig 2601V : Size 32mm (1 1/4 ")

0.5

0.7Knob Setting / Turns



0.5

0.7

1.0

1.3

1.5

1.7 2.

0

2.3

2.5

2.7

3.0

3.5 4.0

33Kvs(m /h)Knob Turns

12.012.0 11.211.2 10.410.4 8.68.6 7.67.6 6.56.5 5.15.1 4.44.4 4.14.1 3.73.7 3.33.3 2.62.6 1.41.44.0 4.0 3.53.5 3.03.0 2.72.7 2.52.5 2.32.3 2.02.0 1.71.7 1.51.5 1.31.3 1.01.0 0.70.7 0.50.5

1.0

1.3

1.5

2.0

2.3

2.5

2.7

3.0

3.5

4.0

1.7

1010.011

10

100

0.1

p =

Sig

nal (

kPa)

s

1010.011

10

100

0.1

p =

Sig

nal (

kPa)

s

0.011

10

100

1010.1

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3 3

Fig 2601V : Size 40mm (1 1/2")Kvs(m /h)Knob Turns

19.5 19.5 17.617.6 16.616.6 14.114.1 11.611.6 10.010.0 8.28.2 6.16.1 4.94.9 4.54.5 4.14.1 3.53.5 3.03.0 2.72.74.0 4.0 3.53.5 3.33.3 3.03.0 2.72.7 2.52.5 2.32.3 2.02.0 1.71.7 1.51.5 1.31.3 1.01.0 0.70.7 0.50.5


p =

Sig

nal (

kPa)


33


29.8 29.8 27.227.2 23.923.9 21.721.7 19.919.9 17.917.9 14.814.8 12.112.1 10.610.6 9.49.4 7.87.8 5.05.0 3.93.94.0 4.0 3.53.5 3.03.0 2.72.7 2.52.5 2.32.3 2.02.0 1.71.7 1.51.5 1.31.3 1.01.0 0.70.7 0.50.5




p =

Sig

nal (

kPa)

s

1010.11

10

100

0.5

0.7

1.0

1.3

1.5

1.7

2.0

2.3

2.5

2.7

3.0

3.3

3.5

4.0

1011

10

100

0.1

0.5

0.7

1.0

1.3

1.5

1.7

2.0

2.3

2.5

2.7

3.0

3.5

4.0


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Fig 2920W : Size 65mm (2 1/2")Number of RotationsKv Value

Fig 2920W : Size 80mm (3")


00 11 22 33 44 55 66 8800 9.09.0 14.514.5 22.722.7 33.133.1 44.744.7 59.959.9 74.574.5

7767.367.3

Kv Value according to VDI / VDE 2173. Kv Value : Flow in m /h at 1 bar headloss33


s

1010.011

10

0.1

1 2 3 4 5 6 7 81.0

0.9

0.8

0.7

0.6

0.5

0.4

0.3

0.2

0.1

00 10 20 30 40 50 60 70 80

Pre

ssur

e D

rop

(bar

)

Flowrate (m / h)Flowrate (m / h)33

Kv Value according to VDI / VDE 2173. Kv Value : Flow in m /h at 1 bar headloss

125

1 2 3 4 5 6 7 81.0

0.9

0.8

0.7

0.6

0.5

0.4

0.3

0.2

0.1

0 25 50 75 100

Pre

ssur

e D

rop

(bar

)

Flowrate (m / h)Flowrate (m / h)33 0

Number of RotationsKv Value

00 11 22 33 44 55 66 8800 16.716.7 25.625.6 38.238.2 55.655.6 74.074.0 89.089.0 118.4118.4

77106.6106.6

33

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3 3

Fig 2601V : Size 40mm (1 1/2")Kvs(m /h)Knob Turns

19.5 19.5 17.617.6 16.616.6 14.114.1 11.611.6 10.010.0 8.28.2 6.16.1 4.94.9 4.54.5 4.14.1 3.53.5 3.03.0 2.72.74.0 4.0 3.53.5 3.33.3 3.03.0 2.72.7 2.52.5 2.32.3 2.02.0 1.71.7 1.51.5 1.31.3 1.01.0 0.70.7 0.50.5


p =

Sig

nal (

kPa)


33


29.8 29.8 27.227.2 23.923.9 21.721.7 19.919.9 17.917.9 14.814.8 12.112.1 10.610.6 9.49.4 7.87.8 5.05.0 3.93.94.0 4.0 3.53.5 3.03.0 2.72.7 2.52.5 2.32.3 2.02.0 1.71.7 1.51.5 1.31.3 1.01.0 0.70.7 0.50.5




sp

=S

igna

l (kP

a)s

1010.11

10

100

0.5

0.7

1.0

1.3

1.5

1.7

2.0

2.3

2.5

2.7

3.0

3.3

3.5

4.0

1011

10

100

0.1

0.5

0.7

1.0

1.3

1.5

1.7

2.0

2.3

2.5

2.7

3.0

3.5

4.0


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Fig 2920W : Size 65mm (2 1/2")Number of RotationsKv Value

Fig 2920W : Size 80mm (3")


00 11 22 33 44 55 66 8800 9.09.0 14.514.5 22.722.7 33.133.1 44.744.7 59.959.9 74.574.5

7767.367.3



s

1010.011

10

0.1

1 2 3 4 5 6 7 81.0

0.9

0.8

0.7

0.6

0.5

0.4

0.3

0.2

0.1

00 10 20 30 40 50 60 70 80

Pre

ssur

e D

rop

(bar

)



125

1 2 3 4 5 6 7 81.0

0.9

0.8

0.7

0.6

0.5

0.4

0.3

0.2

0.1

0 25 50 75 100

Pre

ssur

e D

rop

(bar

)

Flowrate (m / h)Flowrate (m / h)33 0


00 11 22 33 44 55 66 8800 16.716.7 25.625.6 38.238.2 55.655.6 74.074.0 89.089.0 118.4118.4

77106.6106.6

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Fig 2920W : Size 100mm (4")

Fig 2920W : Size 125mm (5")



00 11 22 33 44 55 66 8800 25.025.0 48.748.7 71.471.4 104.0104.0 138.6138.6 163.2163.2 203.0203.0

77187.1187.1

Kv Value according to VDI / VDE 2173. Kv Value : Flow in m /h at 1 bar headloss331 2 3 4 5 6 7 8

1.0

0.9

0.8

0.7

0.6

0.5

0.4

0.3

0.2

0.1

0 0 25 50 75 100 125 150 175 200

Pre

ssur

e D

rop

(bar

)




00 11 22 33 44 55 66 8800 33.733.7 57.257.2 71.471.4 91.091.0 115.5115.5 141.2141.2 178.5178.5

77159.9159.9


99 1010 1111 1212 1313 1414195.0195.0 213.6213.6 237.5237.5 257.8257.8 281.0281.0 296.2296.2

1 2 3 6 7 10 11 121.0

0.9

0.8

0.7

0.6

0.5

0.4

0.3

0.2

0.1

00 100 200 300 400 500 600 700 800

4 5 8 9 13 141 2 3 6 7 10 11 121.0

0.9

0.8

0.7

0.6

0.5

0.4

0.3

0.2

0.1

00 25 75 100 150 200 225 250

4 5 8 9 13 14

50 125 175 275 300

Pre

ssur

e D

rop

(bar

)


Pres

sure

Dro

p (b

ar)

Pres

sure

Dro

p (b

ar)


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00 11 22 33 44 55 66 8850.050.0 80.180.1 92.892.8 112.5112.5 137.5137.5 169.8169.8 197.7197.7

77233.5233.5


99 1010 1111 1212 1313 1414270.3270.3 303.1303.1 338.7338.7 377.5377.5 399.2399.2 415.9415.9

00

33

10.1

1 2 3 4 5 6 7 81.0

0.9

0.8

0.7

0.6

0.5

0.4

0.3

0.2

0.1

00 10 20 30 40 50 60 70 80

Pres

sure

Dro

p (b

ar)


1 2 3 6 7 10 11 121.0

0.9

0.8

0.7

0.6

0.5

0.4

0.3

0.2

0.1

00 50 100 150 200 250 300 350 400


4 5 8 9 1314



00 11 22 33 44 55 66 8863.863.8 128.9128.9 161.0161.0 205.3205.3 254.9254.9 312.5312.5 375.7375.7

77420.5420.5


99 1010 1111 1212 1313 1414476.7476.7 537.1537.1 592.9592.9 655.4655.4 711.5711.5 759.3759.3

00

33Kv Value according to VDI / VDE 2173. Kv Value : Flow in m /h at 1 bar headloss

1 2 3 6 7 10 11 121.0

0.9

0.8

0.7

0.6

0.5

0.4

0.3

0.2

0.1

00 100 200 300 400 500 600 700 800

4 5 8 9 13 14


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Fig 2920W : Size 100mm (4")

Fig 2920W : Size 125mm (5")



00 11 22 33 44 55 66 8800 25.025.0 48.748.7 71.471.4 104.0104.0 138.6138.6 163.2163.2 203.0203.0

77187.1187.1

Kv Value according to VDI / VDE 2173. Kv Value : Flow in m /h at 1 bar headloss331 2 3 4 5 6 7 8

1.0

0.9

0.8

0.7

0.6

0.5

0.4

0.3

0.2

0.1

0 0 25 50 75 100 125 150 175 200

Pre

ssur

e D

rop

(bar

)




00 11 22 33 44 55 66 8800 33.733.7 57.257.2 71.471.4 91.091.0 115.5115.5 141.2141.2 178.5178.5

77159.9159.9


99 1010 1111 1212 1313 1414195.0195.0 213.6213.6 237.5237.5 257.8257.8 281.0281.0 296.2296.2

1 2 3 6 7 10 11 121.0

0.9

0.8

0.7

0.6

0.5

0.4

0.3

0.2

0.1

00 100 200 300 400 500 600 700 800

4 5 8 9 13 141 2 3 6 7 10 11 121.0

0.9

0.8

0.7

0.6

0.5

0.4

0.3

0.2

0.1

00 25 75 100 150 200 225 250

4 5 8 9 13 14

50 125 175 275 300

Pre

ssur

e D

rop

(bar

)


Pres

sure

Dro

p (b

ar)

Pres

sure

Dro

p (b

ar)


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00 11 22 33 44 55 66 8850.050.0 80.180.1 92.892.8 112.5112.5 137.5137.5 169.8169.8 197.7197.7

77233.5233.5


99 1010 1111 1212 1313 1414270.3270.3 303.1303.1 338.7338.7 377.5377.5 399.2399.2 415.9415.9

00

33

10.1

1 2 3 4 5 6 7 81.0

0.9

0.8

0.7

0.6

0.5

0.4

0.3

0.2

0.1

00 10 20 30 40 50 60 70 80

Pres

sure

Dro

p (b

ar)


1 2 3 6 7 10 11 121.0

0.9

0.8

0.7

0.6

0.5

0.4

0.3

0.2

0.1

00 50 100 150 200 250 300 350 400


4 5 8 9 1314



00 11 22 33 44 55 66 8863.863.8 128.9128.9 161.0161.0 205.3205.3 254.9254.9 312.5312.5 375.7375.7

77420.5420.5


99 1010 1111 1212 1313 1414476.7476.7 537.1537.1 592.9592.9 655.4655.4 711.5711.5 759.3759.3

00


1 2 3 6 7 10 11 121.0

0.9

0.8

0.7

0.6

0.5

0.4

0.3

0.2

0.1

00 100 200 300 400 500 600 700 800

4 5 8 9 13 14


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00 11 22 33 44 55 66 8853.353.3 65.565.5 88.888.8 131.5131.5 177.4177.4 224.1224.1 275.4275.4

77349.3349.300



123 10 12 131.0

0.9

0.8

0.7

0.6

0.5

0.4

0.3

0.2

0.1

00 100 200 300 400 500 600 700 800

4 9 11 15 16


12 8 111.0

0.9

0.8

0.7

0.6

0.5

0.4

0.3

0.2

0.1

0

Pres

sure

Dro

p (b

ar)

Pres

sure

Dro

p (b

ar)

7 10

800 950 1100

9 12


1000400 500 700600100 3002000

1.0

0.9

0.8

0.7

0.6

0.5

0.4

0.3

0.2

0.1

0

Pres

sure

Dro

p (b

ar)

800 950 1100


1000400 500 700600100 3002000

3 4 5 6 13 14 15 16 17 18

99425.7425.7


1010 1111 1212 1313 1414 1515 1616 1818590.5590.5 671.4671.4 755.2755.2 836.6836.6 901.0901.0 966.9966.9 1030.61030.6

17171058.81058.8505.9505.9


00 11 22 33 44 55 66 8870.670.6 79.979.9 83.983.9 123.6123.6 176.1176.1 233.3233.3 307.5307.5

77416.3416.300

99566.4566.4


1010 1111 1212 1313 1414 1515 1616 1818924.4924.4 1049.01049.01130.31130.31182.21182.21222.21222.21276.91276.91340.31340.3

17171422.61422.6744.6744.6

19191459.51459.5

33Kv Value according to VDI / VDE 2173. Kv Value : Flow in m /h at 1 bar headloss7

1.0

0.9

0.8

0.7

0.6

0.5

0.4

0.3

0.2

0.1

100 200 300 400 500 600 700 800

85 6 7 8 14 1817


his represents a small selection of our vast product range.

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Presetting of Econ Balancing Valve Fig : 2601V

Econosto DRV and commissioning valves are designed for installation in hot water heating and chilled water air conditioning systems and served to achieve a hydronic balance between the various circuits of the system. It is important to note that the direction of flow must conform with the direction of the arrow on the valve body and that the valve must be installed with a minimum of 5D (5 x nominal pipe diameter) straight pipe in the upstream side and 2D in down stream side.The required preset value of valve.Any intermediate preset value is available.The selected preliminary setting can be made from the two part scale -

the basic scale and the fine adjustment scale.

Presetting : 1. The preset valve of the valve is adjusted with the handwheel. a. The display of the basic setting is shown in the lower windows by the sliding indicator. Each turn of the handwheel is represented by a number inside the window. b. The display of the fine setting is shown in the handwheel windows scale and each number indicates 1/10th of a turn of the handwheel. 2. Carefully remove the cover plug in the centre of the handwheel by using a small screwdriver in .the slot and gently prising it off. 3. With the valve at the required preset value,using a 3 mm allen key, turn the inner screw .clockwise until it seats. The inner screw is located in the hole through the nut. The 3 mm allen .key is supplied along with every valve. 4. Refit the cover plug. Protecting the setting: A sealing wire may be threaded through the hole in the handwheel and a lead seal fitted. For presetting and fine adjustment of the ow volume (balancing), Econosto offers the PFM Flex 3 - Pressure and Flow Measuring Instrument. The Econosto PFM-Flex3 - Pressure and Flow Measuring Instrument is an advanced wireless operating precision instrument for measuring and data retention of flow in Heating, Cooling, and Drinking Water systems.

can be obtained by reference to the flow chart appropriate for the size

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00 11 22 33 44 55 66 8853.353.3 65.565.5 88.888.8 131.5131.5 177.4177.4 224.1224.1 275.4275.4

77349.3349.300



123 10 12 131.0

0.9

0.8

0.7

0.6

0.5

0.4

0.3

0.2

0.1

00 100 200 300 400 500 600 700 800

4 9 11 15 16


12 8 111.0

0.9

0.8

0.7

0.6

0.5

0.4

0.3

0.2

0.1

0

Pres

sure

Dro

p (b

ar)

Pres

sure

Dro

p (b

ar)

7 10

800 950 1100

9 12


1000400 500 700600100 3002000

1.0

0.9

0.8

0.7

0.6

0.5

0.4

0.3

0.2

0.1

0

Pres

sure

Dro

p (b

ar)

800 950 1100


1000400 500 700600100 3002000

3 4 5 6 13 14 15 16 17 18

99425.7425.7


1010 1111 1212 1313 1414 1515 1616 1818590.5590.5 671.4671.4 755.2755.2 836.6836.6 901.0901.0 966.9966.9 1030.61030.6

17171058.81058.8505.9505.9


00 11 22 33 44 55 66 8870.670.6 79.979.9 83.983.9 123.6123.6 176.1176.1 233.3233.3 307.5307.5

77416.3416.300

99566.4566.4


1010 1111 1212 1313 1414 1515 1616 1818924.4924.4 1049.01049.01130.31130.31182.21182.21222.21222.21276.91276.91340.31340.3

17171422.61422.6744.6744.6

19191459.51459.5

33Kv Value according to VDI / VDE 2173. Kv Value : Flow in m /h at 1 bar headloss7

1.0

0.9

0.8

0.7

0.6

0.5

0.4

0.3

0.2

0.1

100 200 300 400 500 600 700 800

85 6 7 8 14 1817


his represents a small selection of our vast product range.

ir F / FM / F

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Presetting of Econ Balancing Valve Fig : 2601V

Econosto DRV and commissioning valves are designed for installation in hot water heating and chilled water air conditioning systems and served to achieve a hydronic balance between the various circuits of the system. It is important to note that the direction of flow must conform with the direction of the arrow on the valve body and that the valve must be installed with a minimum of 5D (5 x nominal pipe diameter) straight pipe in the upstream side and 2D in down stream side.The required preset value of valve.Any intermediate preset value is available.The selected preliminary setting can be made from the two part scale -

the basic scale and the fine adjustment scale.

Presetting : 1. The preset valve of the valve is adjusted with the handwheel. a. The display of the basic setting is shown in the lower windows by the sliding indicator. Each turn of the handwheel is represented by a number inside the window. b. The display of the fine setting is shown in the handwheel windows scale and each number indicates 1/10th of a turn of the handwheel. 2. Carefully remove the cover plug in the centre of the handwheel by using a small screwdriver in .the slot and gently prising it off. 3. With the valve at the required preset value,using a 3 mm allen key, turn the inner screw .clockwise until it seats. The inner screw is located in the hole through the nut. The 3 mm allen .key is supplied along with every valve. 4. Refit the cover plug. Protecting the setting: A sealing wire may be threaded through the hole in the handwheel and a lead seal fitted. For presetting and fine adjustment of the ow volume (balancing), Econosto offers the PFM Flex 3 - Pressure and Flow Measuring Instrument. The Econosto PFM-Flex3 - Pressure and Flow Measuring Instrument is an advanced wireless operating precision instrument for measuring and data retention of flow in Heating, Cooling, and Drinking Water systems.

can be obtained by reference to the flow chart appropriate for the size

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Presetting of Econ Balancing Valve Fig : 2920W

6 64

CDBEA

Econ balancing valve are supplied with the suitable screw driver fixed to the hand wheel. The warning and instruction leaflet (sticker) is fixed on the body of each valve which provides clear instructions for valve operation. The number full revolutions is indicated on the linear scale C, fine adjustment is visible on the circular pitch D one turn is divided into ten parts.

1) Remove the red plastic hand wheel cap A. 2) Close the valve completely & check if the linear scale C and circular pitch D indicate 0 0 .adjustment. 3) Open the valve as required set the number of full revolutions on the linear scale C and .tenth of turn on the circular pitch D. 4) Insert enclosed screw driver E into the screw B, rotate the regulating screw anticlockwise to .set the double regulating feature, a positive stop will be felt. 5) Put the cap A on the head of bolt B.

Maintenance Every part of the valve is designed in such a way that the whole valve is maintenance free. The materials are carefully matched with the parts to make the friction as small as possible. However, due to safety reasons, every valve should be inspected regularly. Before valve removal from the plant or before service the suitable part of the pipeline should be closed.

Installation Take off the plastic covers from the flanges. Blow inside valve by compressed air. The pipeline should be placed in such a way that valve body does not carry bending moments nor tension forces. The linear scale and the plastic set should be protected against painting. The valves could be installed in every position in inlet and outlet pipelines with the hand wheel in down direction. Attention should be paid to flow direction indicated by the arrow on the valve body. Before starting pipeline work (especially after repairs) whole pipeline should be rinsed out by fully opening the valves in order to remove all solid residues which could be dangerous for sealing surfaces. Turning the hand wheel clockwise (according to direction indicated on the hand wheel) can close the valve. The valve is opened by anti-clockwise rotation of the hand wheel. It is prohibited to use additional lever for turning the hand wheel.

For presetting and fine adjustment of the ow volume (balancing),

offers the PFM Flex 3 - Pressure and Flow Measuring Instrument. The Econosto PFM Flex3 - Pressure and Flow Measuring Instrument is an advanced wireless operating precision instrument for measuring and data retention of flow in Heating, Cooling, and Drinking Water systems.

Econosto

137page 137page 13page 28AJ-0 3-00 1 page 13 7page 13

Measuring Instruments


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DescriptionPFM Flex 3 (PFM = Pressure Flow Meter) is an instrument for pressure- and ow measurements. The intended usage is checking and documentation of water ow in heating- and cooling constructions. PFM Flex 3 consists mainly of a Measuring Sensor and a Hand Terminal (PPC) including the BalanceFlex program software. The Sensor measures differential pressure as well as temperature and communicates via Bluetooth with the Hand Terminal.

The Hand Terminal software comprises data of most of the existing balancing valves on the market. From the Hand terminal list of Balancing Valves, the operator choose the actual one (manufacture, model, dimension, position (giving the corresponding KV). This valve data together with measured DP are the basics for calculation of the correct ow which will be displayed on the Hand terminal screen.

Measurement readings can be shown in a graphical form in the Hand Terminal. Readings of balanced values with respective valve data can be saved and later shown on the Hand Terminal screen or even on a PC screen that is connected to the Hand Terminal. The Hand Terminal has a rechargeable battery, type Lithium Ion as well as a system battery. Charging of Hand Terminal is done via enclosed charger.

The Sensor has two connections for hoses that are to be connected over the measuring object. There is also a handle device on the Sensor for opening and closing of the measuring cell. The Sensor has a rechargeable battery pack of 6.600 mAh. Charging is done via the enclosed battery charger.

Technical SpecicationsMeasurement Range : - Total Pressure: max 2500kPa - Differential Pressure: 0-1000kPa. (Optional: 0 - 2000kPa) - Recommended pressure range: 3 200kPa - Static pressure: 500m with antenna (option)IP - class Sensor: IP65

PFM Flex3 - Potable Meter for measuring ow and pressure difference across DRVs

Fig . PFM Flex3

: - Differential Pressure:

Econ Double Regulating Valves

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