Overview

The waterspray Deluge system control valve is designed to protect high hazard areas containing a severe fuel hazard by bringing a large number of Medium or High Velocity open sprayers into action simultaneously in the event of a fire. 

The Deluge valve is held in the closed position in readiness for a fire by a sprinkler or Multiple Control detection line permanently charged by air. In the event of a fire, the sprinkler detector heads or Multiple Control directly affected by the fire will operate.

The immediate drop in air pressure within the detector line releases the pressure against the Deluge valve diaphragm unit causing the Deluge Valve to open and discharge water through all the open medium or high velocity waterspray nozzles. 

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