Water flow indicator

• Certificate: UL Listed/ FM Approved • Standard: ANSI/ UL 346 • Sensitivity:Flow rate 4-10 US GPM • Contact ratings: 8A at 125/250 VAC, 3A at 24VDC, 2.5A at 30VDC • Maximum surge: 18 feet per second (FPS) • Temperature: 0°C to 68°C • W. pressure: 450 psi • Surface: FBE coating as AWWA C550 PRESSURE REDUCING VALVE Pressure reducing valve (PRV) is designed to reduce a higher inlet pressure to a steady lower outlet pressure, so to maintain the desired pressure in fire pipeline. It is a kind of globe style pilot operated valve to open or close automatically, and no need change flow rate or vary inlet pressure.