1" 40XL-4 T&P Relief Valve (150 psi) Zoom

1" 40XL-4 T&P Relief Valve (150 psi)


Brand: Watts

0163725 has been discontinued.
Direct Replacement:
SKU: 0556008
Brand: Watts

Do not use this item for any installation or repair of potable water applications. This product does not comply with the "Safe Drinking Water Act," which requires that products meet low-lead standards in order to be used in systems providing water for human consumption (drinking or cooking). This item is for non-potable (non-human consumption) water applications only.




Size: 1"
Thermostat Length: 4"
Capacity (BTU): 730
Capacity: 730000 BTU/hr
CSA Temp Steam Rating (BTU/HR): 500000
500000 btu/hr
Pressure Set Point: 150 psi
Material: Bronze
Application: Heating
Inlet Type: Male Threaded (IPS)
Outlet Type: Female Threaded (IPS)
Thread Type: Male
Temperature Range (F): 210°F Max
ASME: 1155000 btu/hr @ 75 psi
1481000 btu/hr @ 100 psi
1808000 btu/hr @ 125 psi
2134000 btu/hr @ 150 psi
Connection Type: Threaded
Height: 6-1/4"
Width: 2-3/4"
Weight (lbs): 2.25 lbs

Description for Watts 0163725

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 is recommended.

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.

1" 40XL-4 T&P Relief Valve (150 psi)


by PowerReviews
Watts1"" 40XL-4 Lead Free T&P Relief Valve (150 psi)

(based on 1 review)

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Reviewed by 1 customer

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Perfect fit!

By Count

from Boulder, Colorado

Verified Buyer



      Best Uses

        Comments about Watts 1"" 40XL-4 Lead Free 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!

        • Primary use:
        • Business

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