Fire Fighting Pressure Relief Valve. Nfpa 20 compliance for pressure relief valves prv a pressure relief valve is defined by nfpa 20 3 3 67 5 relief valve as a device that allows the diversion of liquid to limit excess pressure in a system. When at a working fire the relief valve should stay off closed green and momentarily turn on open amber.
Fire protection starts with high performance high quality firefighting valves that direct and control the flow of water safely and efficiently. Pilot controlled globe or angle valve. Our pressure relief valve automatically relieves excess pressure so the fire protection system doesn t overpressure in response to surges and or pumps turning on or off.
Pressure relief valve is made from brass or metal alloy depending on the system application and requirement to ensure durability and performance.
Pilot controlled globe or angle valve. When fire pump starts and the set pressure is exceeded the pressure relief valve opens and a portion of the water is diverted through the auxiliary route and the pressure inside the pipeline stops rising. Pilot controlled globe or angle valve. Pressure relief valve prv opens and closes automatically at a pre set pressure to relieve excess pressure so to protect fire pump.
