Watts Series 40XL Automatic Reseating Temperature and Pressure Relief Valves

Series 40L, 40XL Automatic Reseating Temperature and Pressure Relief Valves are used in commercial water heater applications to provide automatic temperature and pressure protection to hot water supply tanks and hot water heaters. They feature a bronze body with NPT male inlet and NPT female outlet connections, unique thermostat with special thermo-bonded coating, tamper-resistant bonnet screws, automatic reseating feature, and test lever. Model 40L has a short thermostat for installation directly in available tank tapings. Model 40XL has an extension thermostat for installation in the hot water outlet within the allowable distance from the top of the tank. Series 40L, 40XL valves are ASME rated and CSA listed. Temperature Relief: 210°F (99°C), Pressure Range: 75 to 150psi (5.2 to 10.3 bar), Standard Pressure Settings: 75, 100, 125, or 150psi (5.27, 7.03, 8.79, or 10.55 bar).

This 0158774 bronze automatic reseating temperature and pressure relief valve is 3/4 inch in connection size with test lever and 8 inch thermostat. The pressure relief is 150 psi.

Features:
 

• Bronze body construction
• Non-mechanical seat-to-disc alignment
• Thermostat is accurate and proven. Exclusively designed and manufactured by Watts
• Tamper-resistant bonnet screws
• Series 40 and 140 feature a unique thermostat with a special thermo-bonded coating