WATTS®, 0156731, Temperature/Pressure Relief Valve, Automatic Reseating, Series: 40L, 3/4 in Nominal, MNPT x FNPT End Style, 75 to 150 psi Pressure, 210 deg F, Media: Gas/Hot Water/Oil, Test Lever Actuator, Bronze Body, 2-5/8 in W x 5-5/8 in H Dimensions

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.

ANSI Z21.22|ASME Specified|CSA Certified|FHA Requirements|Military Spec. MIL-V-136-12D|Type I and National Board of B and PVI to Section IV of the ASME B and PV Code|PROP65: This product can expose you to chemicals including lead which is known to the State of California to cause cancer and birth defects or other reproductive harm.