|CSA Rating (BTU/HR):||
|Pressure Set Point:||
Female Threaded (IPS)
Male Threaded (IPS)
|Temperature Range (F):||
Note: This item does not comply with the 2014 Lead Free Act. It may not be used in potable water applications as of January 4, 2014. For potable water applications 0556008
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.
Reviewed by 1 customer
Displaying review 1
Comments about Watts 1" 40XL-4 T&P Relief Valve (150 psi):
The T&P valve was used to replace an old one on a domestic hot water boiler. Price was great, shipped quickly and was installed easily. It doesn't get any better!