Deluge Valve Cast Carbon Steel (Model PD-ILV)

Deluge valves are used where a large volume of water has to be applied quickly, and are integral components of fire protection systems: power transformer installations, storage tanks, conveyors and other industrial applications. With a foaming agent added, a deluge valve can protect aircraft hangars and flammable liquid fires.

The PD-ILV range is diaphragm operated and line-fluid actuated: a globe-type, straight-pattern valve. It stays closed while line water is held above the diaphragm in the cover chamber, and opens fully when that chamber is emptied.

Trims

Dry actuation. A dry pipe system uses automatic sprinklers on pipework holding air or nitrogen under pressure. A moderate air pressure holds back a much greater water pressure; when a sprinkler operates, the air escapes, the pressure drops to a set level and the valve opens to fill the pipework. Used where the pipework may be exposed to freezing temperatures.

Wet actuation. The pipework is permanently charged with water, for premises where temperatures are unlikely to fall below freezing. A steady flow equal to the discharge of one or more sprinklers actuates the electric or hydraulic alarms.

Electric release. A solenoid valve drains the water from the top chamber of the deluge valve. A pressure switch raises an electric alarm, shuts down equipment or gives a "Tripped" indication; in a dry pilot airline it can also monitor "low air pressure" and "fire condition".

Test and alarm trim. A test valve checks the sprinkler alarm bell; the alarm can be supplied to ring when the deluge valve actuates.

Drain and drip trim. Main and system drain valves, with a drip valve.