Watts 0556006 Valve 321042-401 Key Benefits: Precise Thermal Calibration:

Key Benefits: Precise Thermal Calibration: Engineered with a fixed 26open 38close setting for accurate high-limit protection

If the protector is cool but shows an open circuit

Universal parts often fail to match the precise BTU throughput required for commercial heaters

always check the manufacturer’s technical data for multi-frequency applications

With an 11 3/4" outside diameter

Watts 0556006 Valve 321042-401 Key Benefits: Precise Thermal Calibration:For high capacity commercial water heating systems, the Watts 0556006 Temperature and Pressure Relief Valve (Series 40XL) is the industry standard for fail safe protection. Designed for 1 inch NPT connections, this ASME rated T&P valve features a 1,481,000 BTU hr discharge capacity and is factory set for 100 psi relief pressure. The 4 inch extension thermostat is engineered with a specialized thermo bonded coating that effectively retards mineral