Pressure relief and pressure retention valve DAV

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Art.Nº: 1400

Application: for use in drinking water sector (other on request)

DN: 1 1/2" - 2" PN16

DN: 2" PN25

DN40 - DN300 PN10 

DN40 - DN300 PN16

DN40 - DN150 PN25 

The relieving or retention pressure of the safety / pressure retention valve is infinitely adjustable via the pilot valve between 2-12 bar. Any excessive system pressure is relieved via the main valve opening quickly. Closing is effected slowly to avoid water hammers.

Use:
- Protection of the system from overpressure (safety valve)
- Maintaining the preset mains system pressure in the upstream piping network (pressure retention valve)

Minimum inlet pressure: 1 bar
Minimum pressure difference between inlet and outlet pressure: 1 bar

For rating, please specify the following:
- Flow (min., med., max.)
- Inlet pressure (P1 side)
- Retention pressure and/or relieving pressure (P2 side)
- Holding pressure / back pressure

 Technical datasheet

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