Fire Protection System (FPS), an HD Fire dealer in Bhopal, supplies the HD Model H alarm valve for wet sprinkler systems, with its retard chamber and water motor gong, and UL Listed HD pre-action systems in single and double interlock versions, including the cabinet mounted Pre-Pack.
A wet system alarm check valve that holds pressurised water above its clapper, prevents reverse flow from the sprinkler piping and triggers the fire alarm when water flows. It is UL Listed, FM Approved, CE marked and made to EN 12259-2:1999.
A UL Listed double interlock pre-action system in which both release signals are electric, built on HD's deluge valve Model H3 and check valve Model CH in sizes from 2 to 8 inch.
A UL Listed double interlock pre-action system that combines an electric release signal with a pneumatic one, built on HD's deluge valve Model H3 and check valve Model CH in sizes from 2 to 8 inch.
A professionally pre-assembled and factory tested pre-action system enclosed in a free standing cabinet, for water sensitive areas that must be protected from accidental water flow into sprinkler piping. It is UL Listed and offered in single and double interlock types.
A stainless steel holding tank for the alarm valve trim that stops the sprinkler alarm from sounding during water pressure surges, used where variable pressure is expected. It is UL Listed and FM Approved for use with the HD Alarm Valve Model H.
A UL Listed single interlock pre-action system released by a dry pilot line, built on HD's deluge valve Model H3 and check valve Model CH in sizes from 2 to 8 inch.
A UL Listed single interlock pre-action system released by an electric signal, built on HD's deluge valve Model H3 and check valve Model CH in sizes from 2 to 8 inch.
A UL Listed single interlock pre-action system released by a wet pilot line, built on HD's deluge valve Model H3 and check valve Model CH in sizes from 2 to 8 inch.
A hydraulically operated mechanical bell that gives an outdoor alarm on sprinkler alarm valves. For sprinkler systems it can be fitted with the motor inside the building and the gong on the outside wall so it can be heard outdoors, and it is UL Listed and FM Approved.
For a wet sprinkler system, the Model H alarm valve sits on the riser and works as a check valve, holding pressurised water above its clapper and stopping back flow from the sprinkler piping. When a sprinkler opens and water flows, the valve operates the alarm through the water motor gong and pressure switch. It comes in 80, 100, 150 and 200 NB, in ductile iron to ASTM A536 with fusion bonded epoxy coating inside and out, with flanged, grooved or mixed ends. Choose the variable pressure trim, which adds a retard chamber and gong, where supply pressure surges; a constant pressure trim is optional.
A pre-action system keeps the sprinkler pipes dry until a release condition is met, so water does not enter the piping by accident. HD builds its pre-action systems around the UL Listed deluge valve Model H3 and check valve Model CH, in 50 to 200 NB. In a single interlock system one event lets water in: a wet pilot line, a dry pilot line or an electric detection signal. In a double interlock system two events are needed, a detection signal plus a second electric or pneumatic signal, which HD offers as electric/electric or electric/pneumatic release.
Decide the scope of supply. HD pre-action sets can come with or without the release panel, compressor, butterfly valve and air maintenance device, the water motor gong is optional, ends can be grooved or flanged, and the set can be pre-assembled or loose. The Pre-Pack puts everything, including a built-in air compressor and a control panel with battery backup, in one free standing cabinet. Prices on request: call or WhatsApp +91 92440 89060.
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