Pilot Operated Pressure Relief (DB, DBW)

Pressure control valves pressure relief subplate/threaded/cartridge pilot operated type DB (DBW)


WN Pmax[Bar] Qmax [dm3/min] Data Card
10, 20, 30 350 650 WK 420 140

Product overview

  • DB – for setting max. pressure of the system
  • DBW – with a pilot for pressure-less starting a pump


  • Subplate mounting in any position
  • Threaded mounting


  • Direct operated with a DC or AC (in DBW version) electromagnet of different values of supply voltage
  • Setting element: rotary knob (with or without a key), setting screw
  • Manual control of electromagnets with a manual override switch – in case of a power failure

Unloading types of DBW valves:

  • In a current-free position open
  • In a current-free position closed