DE/EL/PORV/DN Double-Interlock Pre-action, Electric-Pneumatic Release System

Pneumatic Air/Gas and Electrically operated control valve

The valve maintains a closed position and instantly opens upon
air/gas pressure drop in a pressurized sprinkler system and
energizing a solenoid valve simultaneously or manual “in situ”
emergency activation


  • UL certified
  • Simple structure
  • Automatic reset – optional latch operation

Applicable for:

  • Double-Interlock Pre-Action
  • Water, Sea water, Foam solution or Foam concentrate