***DISCLAIMER: PLEASE REFER TO YOUR MANUFACTURER’S INSTALLATION MANUAL FOR INFORMATION REGARDING YOUR SPECIFIC MODEL. IF YOU ARE ATTEMPTING TO SERVICE YOUR OWN HEATER, PLEASE DO SO WITH CAUTION; U.S. WATER HEATING SOLUTIONS, LLC. AND THE OTHER ORGANIZATIONS MENTIONED BELOW ARE NOT RESPONSIBLE FOR ASSOCIATED LIABILITIES. THIS ARTICLE IS MEANT TO PROVIDE AN INFORMATIVE AND EDUCATIONAL SUMMARY AND DOES NOT SUPERSEDE OFFICIAL WATER HEATER REPAIRS OR MANUFACTURER INFORMATION.
A water heater T&P Relief Valve is a safety feature "that will prevent or relieve overheated water and pressure. Without a relief valve during an unsafe condition, the tank pressure would rise to the point the tank may rupture or explode."
Here are some alternative names for T&P Relief Valves you may see or hear:
Thermal expansion refers to the process of water's volume and contained pressure increasing as a result of the water heating process.
“Thermal expansion of water, if not compensated for in system design, will lead to the early failure of components. These failures are
not covered by the manufacturer’s
warranty, so it is extremely important that everyone be aware of the causes, symptoms and solutions to thermal expansion in a closed water heating system” (Source: A.O. Smith)
U.S. Water Heating Solutions regularly stocks the following T&P Valves:
- AP12993C |
Temperature and Pressure Relief Valve - 3/4 In. NPT Inlet, 3/4 In. NPT Outlet, 200,000 BTU/HR [RHEEM]
- AP14901G-1 / AP20403G | Temperature and Pressure Relief Valve (T&P) [RHEEM]
- AP20402B | Temperature and Pressure Relief Valve (T&P) - Forged [RHEEM]
- SP8346 | Temperature and Pressure Relief Valve - 3/4 In. NPT Inlet, 3/4 In. NPT Outlet, 105,000 BTU/HR [RHEEM]
- SP12574 | Temperature and Pressure Relief Valve - 3/4 in. NPT Inlet [RHEEM]
- SP12575B | Temperature and Pressure Relief Valve - 3/4 In. NPT Inlet, 3/4 In. NPT Outlet, 105,000 BTU/HR [RHEEM]
- SP12576C | Temperature and Pressure Relief Valve - 3/4 In. NPT Inlet, 3/4 In. NPT Outlet, 105,000 BTU/HR [RHEEM]
- 100108279 / 9000071015 | Temperature and Pressure Relief Valve - T&P VALVE, 0.62", 1" SHANK (NCLX-5) [A.O. SMITH]
- 100108779 / 9002403015 | Temperature and Pressure Relief Valve - T&P Valve with 3 inch Shank [A.O. SMITH]
- 100109448 / 9003741005 | Temperature and Pressure Relief Valve - 3/4", 2.3" CAV, 210F, 150 PSI [A.O. SMITH]
- 100110714 / 9005899205 | Temperature and Pressure Relief Valve - T&P VALVE, 150#, 3/4" [A.O. SMITH]
- 100110719 / 9005903205 | Temperature and Pressure Relief Valve [A.O. SMITH]
- 100111601 / 9006921005 | Temperature and Pressure Relief Valve - Pressure Relief Valve, 3/4", 125# [A.O. SMITH]
- 415-32920-01 / 230-32920-01 | 3/4" T & P Relief Valve w/ 3" Stem (105,000 Btus/hr) [BRADFORD WHITE]
Our team of experienced water heater parts experts is happy to help! Identifying the correct replacement T&P Relief Valve for your water heater can be difficult without the right tools.
Please Note: Although our Parts Department team members are experienced, they cannot diagnose issues with your T&P Relief Valve via e-mail or by phone. If you need assistance with diagnostics, we recommend contacting your water heater manufacturer's technical support first or requesting a service call.
Contact our Parts Department:
Parts Department Hours:
Monday-Friday from 7:00 am-5:00 pm
When you need water heater repair or other water heater service, contact the professionals here at U.S. Water Heating Solutions! We regularly diagnose and replace water heater T&P Valves, perform warranty repairs for many of the top manufacturers, and can assist with many other water heater services.
Call our dispatch department at 1-833-879-4776 or fill out our online form to get in touch with our team today!
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