UL Listed Deluge Valve - Deluge Control Valves Manufacturer in India

UL Listed Deluge Valves Range

FLOW-AGE UL Listed Deluge valves are hydraulically actuated, pilot operated diaphragm control valve.

Two basic designs are available FT100-straight pattern & FT 1100-angle pattern. All internal parts and cover are 100% identical in both the designs.

The FT100/1100-series deluge valve is held closed by system water pressure trapped in the top cover chamber. When the releasing system operates, pressure is released from the top cover chamber and the diaphragm assembly moves upward allowing the water to flow into the system.

OPERATION:

UL Listed Deluge valves are required to operate independently, regardless of failure in other systems or sources of energy. In emergency deluge valves should be operated by line water pressure.

There are three chambers in the valve, inlet, outlet and cover chamber. The cover chamber & inlet/outlet are separated by an Elastomer Diaphragm. The valve consists of three main parts , Body, cover and diaphragm assembly. When diaphragm assembly, moves upward, valve opens and when it moves downward, it seals on the seat and valves closes driptight. The valve is of packless design-having no gland packing.

In the closed set condition, FLOW-AGE FT100/FT1100 deluge valve is held closed by line pressure applied and trapped in the Cover Chamber

Refer drawing. This water pressure multiplied by the effective surface area of the diaphragm.
Creates a differential closing force, resulting the valves remaining bubble tight closed.
Until a control devices activates. The closed valves prevents the water or foam from entering the system. During FIRE or TEST condition, the water pressure is released from the cover chamber.
This enables the line water pressure, without any help from any outside sources, to force the diaphragm plug assembly.
Upward and the valve fully opens for clear unrestricted reintroduced into the cover chamber.
Which closes the valve fully.

Hydraulically Controlled Deluge Valve:

This type of system in UL Deluge Valves are suitable for wet pilot lines with closed fusible plugs. Provided with boosted local opening, it is recommended for systems with elevated fusible plugs. The deluge valves latches open in response to hydraulic pressure drop in the wet pilot line.

Electro – Hydraulically Controlled Deluge Valve:

This type of deluge valve is solenoid (electrically) operated with hydraulic (line fluid) actuated. The deluge valve opens in response to an electric signal which drains the cover chamber of pilot and main valve, which allows the to fully open.

Pneumatically Controlled Deluge Valve:

This type of deluge valve opens up in response to pneumatic pressure drop in the dry pilot line. This system is suitable for dry pilot lines with closed pneumatic pressure drop in the dry pilot line.

Electro-Pneumatically controlled Deluge Valve:

This type of deluge valve has electric and Electro Pneumatic device for detection. The deluge valve opens in response to an electric signal and/or pneumatic pressure drop in the dry pilot line.

Test and Alarm Trim with Sprinkler Alarm:

This trim is supplied with the sprinkler alarm bell, which rings on actuation of deluge valve. A test valve is provided to test the normal operation of the sprinkler alarm bell.(water motor gong)

UL Listed Deluge Control Valves | UL Approved Deluge Valves