Pilot Operated Water Valve

Brand: Spirax Sarco

The WV1 is a pilot operated diaphragm valve for use with water at up to 80 °C.

The valve has a brass body and corrosion resistant internals.

The solenoid is encapsulated, and is supplied with a removable cable socket to IP65 suitable for 3 core cable maximum 7 mm diameter and terminal maximum 1.5 mm².

½" valves have the solenoid mounted centrally over the valve. The solenoid is mounted towards the outlet connection on larger sizes.
  • For use with water up to 80 °C.
  • Full bore, except for 1¼" which has a reduced bore of 25 mm, normally closed operation.
  • Wide, non-critical voltage ranges.
  • Ideal for boiler feed tank supply.



  • 1/2”, 3/4”, 1”, 1-1/4”, 1-1/2” and 2” screwed BSP

Maximum Design Pressure

  • 16 bar g

Maximum Design Temperature

  • 80° C

Minimum Design Temperature

  • 10° C

Maximum Operating Temperature

  • 80° C

Maximum Ambient Temperature

  • 55° C

Minimum Operating Temperature

  • 10° C

Maximum Differential Pressure

  • 16 bar

Minimum Differential Pressure

  • 0.2 bar

Designed for a Maximum Cold Hydraulic Test Pressure

  • 24 bar g


  • Body: Brass
  • Seals: Nitrile Rubber
  • Coil Housing: Polyamide
  • Cable Socket: Polyamide


show more