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Dorot

Pre-Action Valves

DE\EL\PORV-DN-MR - DOUBLE-INTERLOCK PRE-ACTION, MANUAL-RESET, ELECTRIC-PNEUMATIC RELEASE SYSTEM

Double-Interlock Pre-action, Manual-Reset, Electric-Pneumatic Release System

  • Model 68-DE\EL\PORV\DN-MR
  • Model 30U-DE\EL\PORV\DN-MR

Electrically and Pneumatically Activated, Pilot-controlled, Pre-Action Double-Interlocked valve, actuated by the pipeline pressure. The valve is closed in its normal, set position and opens when the relay-valve senses a pressure drop in the valve's downstream gas-pressurized pipeline, together with the solenoid valve being energized. The valve must be manually reset following actuation. An emergency manual release valve is fitted as standard.

 

Features:

  • UL Listed
  • Simple structure
  • Manual reset
  • Optional pressure reducing function

 

Applicable for:

  • Double-Interlock Pre-Action
  • Water, Sea water and Foam
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