Pressure reducing valve with non-return function

1501 Pressure reducing valve with non-return function

Components

  • 1: Main valve
  • 2: Ball valve (A, B, C)
  • 3: Filter
  • 4: Orifice
  • 5: Throttle check valve (A, B)
  • 6: Control valve
  • 7: Manometer with ball valve (A, B)
  • 8: Optical position indicator (optional: Electrical position indicator, opening limiter)
  • 9: Check valve (A, B)
Article No. DN PN
(bar)
L
(mm)
weight
(kg)
Availability Watchlist
1501007000 1 1/2" 16 210 11.000 on demand
DRV with non-return function DN 1 1/2" PN 10/16
1501007000
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1501008000 2" 16 210 11.000 on demand
DRV with non-return function DN 2" PN 10/16
1501008000
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1501040000 40 16 200 15.750 on demand
DRV with non-return function DN 40 PN 10/16
1501040000
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1501050000 50 16 230 16.250 on demand
DRV with non-return function DN 50 PN 10/16
1501050000
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1501050025 50 25 230 16.250 on demand
DRV with non-return function DN 50 PN 25
1501050025
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1501065000 65 16 290 21.300 on demand
DRV with non-return function DN 65 PN 10/16
1501065000
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1501080000 80 16 310 27.400 on demand
DRV with non-return function DN 80 PN 10/16
1501080000
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1501080025 80 25 310 27.400 on demand
DRV with non-return function DN 80 PN 25
1501080025
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1501100000 100 16 350 35.400 on demand
DRV with non-return function DN 100 PN 10/16
1501100000
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1501100025 100 25 350 35.400 on demand
DRV with non-return function DN 100 PN 25
1501100025
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1501125000 125 16 400 51.500 on demand
DRV with non-return function DN 125 PN 10/16
1501125000
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1501150000 150 16 480 76.000 on demand
DRV with non-return function DN 150 PN 10/16
1501150000
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1501150025 150 25 480 77.000 on demand
DRV with non-return function DN 150 PN 25
1501150025
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1501200000 200 10 600 114.600 on demand
DRV with non-return function DN 200 PN 10
1501200000
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1501200016 200 16 600 114.600 on demand
DRV with non-return function DN 200 PN 16
1501200016
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1501250000 250 10/16 730 247.000 on demand
DRV with non-return function DN 250 PN 10/16
1501250000
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1501300000 300 10/16 850 356.000 on demand
DRV with non-return function DN 300 PN 10/16
1501300000
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Physical characteristics

  • The main valve is a hydraulically operating diaphragm valve. The work energy is the inherent medium.
  • Most valve types operate purely hydraulically without any foreign energy.

Application

  • To use in drinking water systems (other media after consultation)
  • Reduction in pressure to supply the network
  • Emergency feed into a second network (network connections) with backflow prevention

Mode of operation

  • The pressure reducing valve reduces a variable inlet pressure to a constant outlet pressure. Fluctuating inlet pressure and flow rate have no effect on the outlet pressure controlled by the control valve. The outlet pressure is adjustable in the range from 1.5 to 12 bar (standard design). If the inlet pressure can fall below the outlet pressure, the backflow prevention function prevents any flowback of the water.

Product information

  • To calculate the dimensions of the valve please refer to the following information:
  • Maximum and minimum inlet pressure (static and dynamic pressure ratios)
  • Maximum and minimum flow rates
  • Possible requirement for extinguishing water
  • Available line diameters and lengths
  • Desired outlet pressure
  • Construction of the valve (straight or angle design)
  • For the calculation basis, information on the loss of pressure and the characteristic values of the valve, please refer to the end of Chapter E.

Design

  • Design according to DIN EN 1074
  • Construction length acc. to DIN EN 558
  • Flange mass according to DIN 1092-2, to PN 25 DN 300
  • Pressure levels: PN 10 or PN 16 to DN 300, PN 25 to DN 200, higher pressures on request.
  • Nominal widths DN 50, DN 80, DN 100 and DN 150 available in angular design
  • Nominal widths 1 ½" and 2" with threaded connection (female thread)
  • Medium temperature up to 40°C

Installation and assembly

  • Shut–off valves should be fitted on both sides of the valve and a dirt trap should be installed on the inlet side of the valve. Depending on the installation situation, a mounting/dismounting adapter and an aeration and ventilation system should be provided.

Vantages

  • Maintenance-free, non-rusting valve seat
  • Pressed-in seat
  • EWS-coating according to RAL GSK
mehr
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