Watts 0121428, 40XL-7-150 T&P Valve 2,134,000 BTU

This Watts temperature and pressure (T&P) relief valve is designed to release water at 150 psi and a temperature of 210 °F. It features a 1-inch National Pipe Thread (NPT) connection and has a capacity of discharging up to 2,134,000 British thermal units per hour (BTU/hr). This valve is typically used in water heating systems to prevent excessive pressure build-up and temperatures that could cause system failure or hazards.