Watts 100XL-8-150 Temperature And Pressure Relief Valve

Watts 100XL-8-150 Temperature And Pressure Relief Valve delivers reliable protection for water heaters and hot water storage tanks. This self-closing, lever-operated valve promptly relieves excessive temperature and pressure to prevent tank damage, while the built-in test lever makes routine checks effortless. Constructed with a brass body and a stainless steel spring, it combines durability with precise relief control for long-term service in residential, commercial, and industrial applications.

Set pressure ranges from 150 to 210 PSI, with a temperature rating up to 210°F, and a robust pressure rating of 75 to 150 PSI. The valve is designed for water heaters and hot water storage tanks, and handles steam-rated scenarios up to 105,000 BTU/hour when required. It complies with ANSI Z21.22, ASME, and CSA standards, ensuring safe, code-compliant operation.

• Self-closing, full-automatic relief with a test lever for manual verification
• Brass body with stainless steel spring for durability and corrosion resistance
• Inlet/outlet: 3/4 in, male thread x 3/4 in, female thread end connections
• Set pressure range: 150–210 PSI; Temperature rating: 210°F
• Pressure rating: 75–150 PSI; Steam rating: up to 105,000 BTU/hour
• Unique thermostat with thermo-bonded coating for enhanced relief accuracy
• Ideal for water heaters and hot water storage tanks; Meets ANSI Z21.22, ASME, CSA