Diaphragm valve FDV-DE series

electrically-actuatedfor controlfor water

* Hydro-dynamic pattern design ensures high flowrates with minimum head loss * The valve trips open automatically upon a gradual release of water pressure from its control chamber. The trip is actuated by an electric signal transmitted to the valve’s solenoid from the main control panel, due to a flame heat exposure of a sensors detection system * Soft closing upon pressurization of the valve’s control chamber, by line pressure or other independent water source, prevents surges The FDV-3W-DE1 3 way control principal assures the deluge valve full opening with maximum rate of flow and minimum head loss. This system resets to stand-by close position by de-energizing the solenoid’s coil through the main control panel. The FDV-3W-DE1 Deluge system is actuated electrically and resets remotely. An electric detection system activates a 3 way solenoid valve through a control panel, to open a 3 way actuator and consequently, the FDV deluge valve opens. As the actuator fully drains the deluge valve’s control chamber, the valve can transfer its full rate of flow and minimum head loss. While in set position, the N.C. solenoid valve drains the actuator’s control chamber keeping the actuator elastomeric diaphragm free of pressure, assuring this component long service life. The Deluge system incorporates an emergency valve, bypassing the fire detection systems for manual operation.