Watts 40XL-7-1 Temperature and Pressure Relief Valve

Watts 40XL-7-1 Temperature and Pressure Relief Valve protects commercial water heaters from hazardous overpressure and overheating. This automatic reseating, self-closing valve features a bronze body and a 1" inlet and 1" outlet with male-to-female threaded end connections, ensuring dependable installation. With a set pressure range of 150 to 210 psi and a temperature rating of 210°F, it safely vents both pressure and temperature excursions. The unit is engineered for long-term reliability, including an extension thermostat, test lever, non-mechanical seat-to-disc alignment, and a tamper-resistant bonnet screw.

• Bronze body with 1" NPT inlet and 1" NPT outlet (end connections: male threaded x female threaded)
• Automatic reseating and self-closing operation for continuous protection
• Set pressure range 150–210 psi; temperature rating 210°F; steam rating 500,000 BTU/hour
• Includes extension thermostat, test lever, non-mechanical seat-to-disc alignment, and tamper-resistant bonnet screw
• Compact dimensions: 2-3/4" width × 6-1/4" height; thermostat length 7"
• Approved for commercial water heater use and compliant with standards including ANSI Z21.22, ASME, CSA, ASSE, NSF, UL

Choose the Watts 40XL-7-1 for reliable safety, extended service life, and compliant performance in high-demand water heating systems.