While the 231 series is robust

ensuring seamless integration and performance

Manufactured from durable materials to maintain structural integrity under high RPMs

Ensure your control sequence increases branch pressure when the temperature exceeds the setpoint before installation

effectively preventing "dry fire" conditions that cause catastrophic vessel failure

Watts 0121604 Regulator 30067439-890 While the 231 series isAs a veteran contractor, you know that commercial water heater protection hinges on the reliability of the 1. 5 inch Watts 0121604 temperature and pressure relief valve. This LF340X 8 125 model is the industry standard for high capacity lead free relief valves, engineered specifically for large scale hot water supply tanks and heaters. With a massive 5. 403K BTU steam discharge capacity and a precise 125 PSI pressure relief setting, this valve