DELUGE VALVE MODEL- A (CAST IRON)
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DELUGE VALVE HD FIRE PROTECT PVT. LTD. MODEL- A (CAST IRON) TECHNICAL DATA MODEL NOMINAL SIZE MAXIMUM SERVICE PRESSURE THREADED OPENING BSPT MOUNTING 90° Pattern Inlet to Outlet Vertical Mounting FACTORY HYDROSTATIC TEST PRESSURE FLANGE CONNECTION ANSI B 16.1 FF # 125 (Flange drilling matching to ANSI B 16.5 # 150) TRIM Galvanized Steel with Brass Valves WET PILOT SPRINKLER HEIGHT LIMITATION NET WEIGHT WITHOUT TRIM chamber acts across the diaphragm operated clapper which holds the seat against the inlet supply pressure because of differential pressure design. On detection of fire the top chamber is vented to atmosphere through the outlet port via opened actuation device(s). The top chamber pressure cannot be replenished through the restricted inlet port, thus it reaches less than half the supply pressure instantaneously and the upward force of the supply pressure lifts the clapper allowing water to enter the system piping network and alarm devices. TRIM DESCRIPTION ORDERING Specify : INFORMATION 1) Size of valve 2) Trim type- Dry Pilot Wet Pilot Electric Release Test & Alarm The basic trim is required on deluge valve regardless of the release system. It contain those components which are required in all types of installation, such as the main drain valve, priming connection, drip check valve, emergency release valve and pressure gauges. b) DRY PILOT TRIM (PNEUMATIC RELEASE) Dry pilot operation uses a pilot line of closed Sprinklers / QB detectors containing air under pressure, located in the area to be protected. It requires regulated dry air supply with main supply point through restricted orifice. VALVE OPERATION The pilot line is connected directly to the top of POSITIVE DRAIN ACTUATOR (PDA). The bottom of PDA is connected to the top chamber of the deluge valve. Deluge valve is a quick release, hydraulically operated diaphragm valve. It has three chambers, isolated from each other by the diaphragm operated clapper and seat seal. While in ‘SET’ position, water pressure is transmitted through an external bypass check valve and restriction orifice from the system supply side to the top chamber, so that supply pressure in the top When the air pressure drops, due to release of any of the release devices on detection of fire, the diaphragm of PDA is lifted and allows the water to drain. This reduces the water pressure in the top chamber of the deluge valve and when the pressure in the top chamber reaches 50% of the supply pressure, the deluge valve opens. Deluge Valve is known as a system control valve in a deluge system, used for fast application of water in a spray system. Deluge valve protects areas such as power transformer installation, storage tank, conveyor protection and other industrial application etc. With the addition of foaming agent deluge valve can be used to protect aircraft hanger and inflammable liquid fire.

The direct drain of PDA start when the top chamber pressure of deluge valve reaches approximately 0.7 kg/sq.cm. This positive drain will not permit the deluge valve to close unless the PDA is set manually. The recommended air supply pressure is as per TABLE-1. TABLE-1 LINE WATER PRESSURE kg/sq.cm MAXIMUM AIR PRESSURE IN DETECTION LINE kg/sq.cm MINIMUM RESETTING PROCEDURE (i) Close the upstream side stop valve provide below the deluge valve. (ii) Open both the drain valves and close them when the flow of water has ceased. (iii) Inspect and release if required, or close the section of the...

Let any of the release devices to trip. This will result in a sudden drop of water pressure in the deluge valve top chamber resulting the deluge valve to open. The water flowing through the down stream side drain valve confirms that the deluge valve has actuated, immediately close the upstream side stop valve . (iv) Once testing is over reset the valve as per procedure given under heading “RESETTING PROCEDURE FOR THE DELUGE VALVE”. (d) Conduct the water flow test as per the procedure of system testing at least once in a month. (iv) PERIODIC CHECK Conduct the water flow test by actuating few...

DELUGE VALVE MODEL - A SIZE 200 / 150 / 100 / 80 / 50 NB C INLET DIMENSION in millimeters (Approximate) NOMINAL SIZE OF VALVE DELUGE VALVE MODEL - A PART LIST PART NO. MATERIAL DESCRIPTION CAST IRON DUCTILE IRON* RUBBER SEAT RUBBER CLAMP DUCTILE IRON* STAINLESS STEEL CLAMP RING DUCTILE IRON* CAST IRON CARBON STEEL CARBON STEEL CARBON STEEL STAINLESS STEEL CARBON STEEL CARBON STEEL CARBON STEEL *Ductile Iron is standard supply, Bronze & Stainless Steel is optional supply. ** EPDM is standard supply with Stainless Steel Seat. Neoprene is optional supply with Stainless Steel & Bronze Seat. NA...

DELUGE VALVE MODEL - A SIZE 200 / 150 / 100 / 80/ 50 NB 11

DRY PILOT BASIC TRIM ASSEMBLY FOR DELUGE VALVE MODEL - A WITH TEST & ALARM, DRIP & DRAIN VALVES, SIZES - 50/80/100/150 & 200NB - NTD N0TE: # ELECTRIC TRIM IS OPTIONAL. WHEN ELECTRIC TRIM IS SUPPLIED, THEN SL.NO. 21 PLUG IS NOT REQUIRED  VARIANT (REFER PART LIST)  STANDARD LENGTH SUPPL OR USER TO SPECIFY (TO SUIT AT SITE) FOR ANY ALTERATIONS Y

DRY PILOT BASIC TRIM ASSEMBLY WITH TEST & ALARM, DRIP & DRAIN VALVE - NTD ITEM NO. PIPE NIPPLE QUANTITY PER DELUGE VALVE SIZE 200 NB 150 NB 100 NB 80 NB 50 NB 1 NRV WITH RESTRICTION HEX NIPPLE PIPE NIPPLE PIPE NIPPLE PIPE NIPPLE BALL VALVE GAUGE VALVE PRESSURE GAUGE PIPE NIPPLE PIPE NIPPLE PIPE NIPPLE PIPE NIPPLE EMERGENCY RELEASE STATION PIPE NIPPLE PIPE NIPPLE POSITIVE DRAIN ACTUATOR PIPE NIPPLE COPPER TUBE ASSEMBL Y COPPER TUBE ASSEMBL Y COPPER TUBE ASSEMBL Y COPPER TUBE ASSEMBL Y BALL VALVE ANGLE VALVE ANGLE VALVE DRIP VALVE FUNNEL HOLDER PIPE NIPPLE PIPE NIPPLE ANGLE VALVE ANGLE VALVE...

DRY PILOT BASIC TRIM ASSEMBLY FOR DELUGE VALVE MODEL - A SIZES - 50/80/100/150 & 200NB - ETD N0TE: # ELECTRIC TRIM IS OPTIONAL. WHEN ELECTRIC TRIM IS SUPPLIED, THEN SL.NO. 21 PLUG IS NOT REQUIRED  VARIANT (REFER PART LIST)

DRY PILOT BASIC TRIM ASSEMBLY - ETD ITEM NO. PIPE NIPPLE QUANTITY PER DELUGE VALVE SIZE 200 NB 150 NB 100 NB 80 NB 50 NB 1 NRV WITH RESTRICTION HEX NIPPLE ORIFICE NOZZLE PIPE NIPPLE BALL VALVE GAUGE VALVE PRESSURE GAUGE PIPE NIPPLE PIPE NIPPLE PIPE NIPPLE PIPE NIPPLE EMERGENCY RELEASE STATION PIPE NIPPLE PIPE NIPPLE POSITIVE DRAIN ACTUATOR PRESSURE SWITCH PRESSURE SWITCH PIPE NIPPLE PIPE NIPPLE PIPE NIPPLE PIPE NIPPLE