40L
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
Literature
Share this Product
Approval/Certification Information
For product-specific approval information, please refer to the product’s specification sheet or ask a Watts representative. For general information regarding any approval certification partners identified in the specification sheet, please visit our certification partners’ websites:
ASSE | CSA | FM Approvals | NSF |
UL | ULC | USC | WQA |