1405 1300
Pressure retention valve DAV with float control

1406 Pressure retention valve DAV with float control

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: Float control valve
Datasheet manual

performance diagram

brochure

certificate

Article No. DN PN
(bar) 		L
(mm) 		weight
(kg) 		Availability Watchlist
1406007000 1 1/2" 16 210 11.500 on demand
DAV with float control DN 1 1/2" PN 10/16
1406007000
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1406008000 2" 16 210 11.500 on demand
DAV with float control DN 2" PN 10/16
1406008000
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1406040000 40 16 200 16.250 on demand
DAV with float control DN 40 PN 10/16
1406040000
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1406050000 50 16 230 16.750 on demand
DAV with float control DN 50 PN 10/16
1406050000
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1406065000 65 16 290 21.800 on demand
DAV with float control DN 65 PN 10/16
1406065000
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1406080000 80 16 310 27.900 on demand
DAV with float control DN 80 PN 10/16
1406080000
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1406100000 100 16 350 35.900 on demand
DAV with float control DN 100 PN 10/16
1406100000
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1406125000 125 16 400 52.000 on demand
DAV with float control DN 125 PN 10/16
1406125000
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1406150000 150 16 480 76.000 on demand
DAV with float control DN 150 PN 10/16
1406150000
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1406200000 200 10 600 115.100 on demand
DAV with float control DN 200 PN 10
1406200000
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1406200016 200 16 600 115.100 on demand
DAV with float control DN 200 PN 16
1406200016
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1406250000 250 10/16 730 247.500 on demand
DAV with float control DN 250 PN 10/16
1406250000
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1406300000 300 10/16 850 362.000 on demand
DAV with float control DN 300 PN 10/16
1406300000
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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)
  • As an open/shut valve with hydraulic control for filling reservoirs, when the system must not fall below the level of the inlet pressure

Mode of operation

  • The pressure–sustaining valve with float control opens when the water level is low taking into account the set holding pressure The closing procedure is slow in order to avoid shock pressure loads. Variable flow rate has no effect on the holding pressure which is regulated by the control valve. The overpressure or maintained pressure can be set within the range of 2 bar to 16 bar (standard design). The valve closes when the level of water in the reservoir has been reached.

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
  • 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. If there is a free run into the reservoir (without any counterflow from the reservoir) the outlet slider can be omitted.

Vantages

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