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40L Watts

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 degreeF (99 degreeC). 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).

Features

  • Bonnet screws are tamper-resistant
  • Automatic reseating feature
  • Accurate thermostat with special thermo-bonded coating
  • Valve provides automatic temperature and pressure protection to hot water storage tanks and water heaters

Select a Model

Select options below to identify the UPC, Order Code, and Repair Kit for a specific 40L