1404 1406
Pressure retention valve DAV for monitoring third-party pressure

1405 Pressure retention valve DAV for monitoring third-party pressure

Components

  • 1: Main valve
  • 2: Ball valve (A, B)
  • 3: Filter
  • 4: Orifice
  • 5: Throttle check valve
  • 6: Control valve
  • 7: Pressure gauge with ball valve
  • 8: Optical position indicator (optional: Electrical position indicator, opening limiter)
  • 9: Control valve with relief is controlled with external pressure
Datasheet manual

performance diagram

brochure

certificate

Article No. DN PN
(bar) 		L
(mm) 		weight
(kg) 		Availability Watchlist
1405007000 1 1/2" 16 210 11.000 on demand
DAV for monitoring third-party pressure DN 1 1/2" PN 10/16
1405007000
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1405008000 2" 16 210 11.000 on demand
DAV for monitoring third-party pressure DN 2" PN 10/16
1405008000
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1405040000 40 16 200 15.750 on demand
DAV for monitoring third-party pressure DN 40 PN 10/16
1405040000
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1405050000 50 16 230 16.250 on demand
DAV for monitoring third-party pressure DN 50 PN 10/16
1405050000
Add to an existing list
1405065000 65 16 290 21.300 on demand
DAV for monitoring third-party pressure DN 65 PN 10/16
1405065000
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1405080000 80 16 310 27.400 on demand
DAV for monitoring third-party pressure DN 80 PN 10/16
1405080000
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1405100000 100 16 350 35.400 on demand
DAV for monitoring third-party pressure DN 100 PN 10/16
1405100000
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1405125000 125 16 400 51.500 on demand
DAV for monitoring third-party pressure DN 125 PN 10/16
1405125000
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1405150000 150 16 480 76.000 on demand
DAV for monitoring third-party pressure DN 150 PN 10/16
1405150000
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1405200000 200 10 600 114.600 on demand
DAV for monitoring third-party pressure DN 200 PN 10
1405200000
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1405200016 200 16 600 114.600 on demand
DAV for monitoring third-party pressure DN 200 PN 16
1405200016
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1405250000 250 10/16 730 247.000 on demand
DAV for monitoring third-party pressure DN 250 PN 10/16
1405250000
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1405300000 300 10/16 850 359.000 on demand
DAV for monitoring third-party pressure DN 300 PN 10/16
1405300000
Add to an existing list

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)
  • As an open/shut valve with hydraulic control (e.g. sprinkler systems)
  • Maintaining a network pressure

Mode of operation

  • The pressure–sustaining valve opens quickly via the control line of the external pressure and closes slowly when the external pressure lowers. So that the control valve can be relieved again after pressurisation (and the main valve closes again), it must be possible to relieve the control line of the external pressure. The pressure of the control line (external pressure) should be within the range of 2 to 16 bar.

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)
  • Desired maximum loss of pressure
  • Level of the external pressure
  • Maximum and minimum flow rates
  • Available line diameters and lengths
  • 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 should be provided.

Vantages

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