174A Watts 1-1/2" Bronze Boiler Pressure Relief Valve 30 PSI With Flood Sensor

This pressure relief valve has a 1 1/2 inch NPTF female inlet and outlet and a 30 psi pressure relief setpoint. The 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 Sentry Plus Alert 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.

Install Instructions
Specification Sheet

• Features a flood sensor with Sentry Plus Alert technology to detect excessive water discharges from the relief valve
• Requires purchase of activation kit to activate sensor
• Bronze body
• Automatic reseating
• Non-mechanical seat to disc alignment
• Set pressure 30 psi