This pressure relief valve has a 3/4 inch NPTF female inlet and outlet and a 30 psi pressure relief setpoint. The 174A 030 FS valve can be used for hot water space heating boiler applications to protect against excessive pressure. It features a bronze body, non-metallic disc-to-metal seating, and test lever. Includes a nonrestrictive discharge drain line flood sensor with SentryPlus Alert(R) technology to detect excessive water discharges from the relief valve. Sensor activation requires purchase of an activation kit which can be connected to existing building management systems or the Watts Cellular Gateway; Watts accessory kit #88009464.
- Lead Free* copper silicon alloy body
- NPTF female inlet and outlet connections
- Above drain seat to prevent sediment from fouling the valve
- Non-mechanical seat-to-disc alignment will not stick or freeze
- Test lever
- Valve is designed for emergency safety relief and shall not be used as an operating control
- Standard Pressure Setting: 30psi (206.9 kPa)
- Pressure Range: In 5psi (34.5 kPa) increments from 30 to 150psi (2 to 10 bar)
- Packaged with SentryPlus Alert discharge line flood sensor
- Watts Ordering Code #F274428
