DE/HRV Hydraulically Controlled, Anti-Columning Deluge Valve

Hydraulic pilot operated control valve
The valve maintains a closed position and instantly opens upon a hydraulic pressure drop in a pressurized sprinkler system.


  • Simple structure
  • Automatic reset – optional latch operation
  • The application is based on the UL listed valves

Applicable for:

  • Deluge
  • Dry pipe
  • Single-Interlock Pre-Action
  • Water, Sea water, Foam solution or Foam concentrate