Master pressure reducing valve assemblies are often large valves to support the needs of standpipe and sprinkler combined systems. For these combined riser systems, larger flows are required for hose valves, while sprinkler systems are often required to be tested at minimum sprinkler flow (this could be 14.8 gpm, or lower depending on the hazard).

Factory-set pressure reducing valve. Category Hose valve. Certificate: UL Listed. Standard: ANSI / UL 1468. Function: Standpipe valve, floor control valve. W. pressure: Max inlet 300 / 400 psi. Surface: Rough / polished / chrome plated. Download Factory-set pressure reducing valve.

11/28 · A Pressure Control Valve is defined by the NFPA 20 (3.3.67.3) [14, ] as “a pilot-operated pressure-reducing valve designed for the purpose of reducing the downstream water pressure to a specific value under both flowing (residual) and non-flowing (static) conditions.“. Suction Pressure Regulating Valves that are listed for fire pump

1/28 · This is the third of a four part video series on the function and components of fire suppression systems. Part three in our video series on fire suppression

Typical applications include fire sprinkler systems in high-rise buildings, airports, hospitals or any large commercial or residential structure. 90-21 Pressure Reducing Valve 90-42

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We advance safety by finding smarter ways to help safeguard businesses and protect people where they live and work. Using proven and trusted technology, we offer a versatile line of fire valves for diverse applications, including oil and gas, energy and power generation, tunnels and transportation, storage facilities, commercial, industrial, or

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Description: Pressure Reducing Valves automatically reduce a higher inlet pressure to a steady lower outlet pressure regardless of changing flow rate and/or varying inlet pressure. The valves pilot control system is very sensitive to slight downstream pressure fluctuations, and will automatically open or close to maintain the desired pressure

8/15 · Also note that NFPA 25 requires an annual inspection of “hose connection pressure regulating devices” and “hose rack pressure-reducing devices” (valves; 13.5.2.1, 13.5.3.1), but this only applies if a sprinkler system is part of a combination sprinkler/standpipe.

8/11 · Another option you have is to install pressure reducing hose valves for the fire fighters on the lower levels, and use 300 psi sprinklers where sprinkler system pressure exceeds 175 psi. You will need a 3" drain riser with hose connections to test the PRV's every 3 years. I know that this might be an expensive option in an existing building