Watts Temperature and Pressure Relief Valve: MNPT x FNPT, 3/4 in x 3/4 in Connection Size
The WATTS Temperature and Pressure Relief Valve is an ASME Section IV rated valve with a 3/4 in MNPT x 3/4 in FNPT connection size. Its body is constructed of brass, as specified by manufacturer part number 3/4 LF…
SKU 3G-OTH-437108
Also listed as: 34LF100XL4 · 3 4 LF 100XL 4 · 3-4-LF-100XL-4
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Product Description
The WATTS Temperature and Pressure Relief Valve is an ASME Section IV rated valve with a 3/4 in MNPT x 3/4 in FNPT connection size. Its body is constructed of brass, as specified by manufacturer part number 3/4 LF 100XL-4.
Frequently Asked Questions
What is a Watts temperature and pressure relief valve used for?
A Watts temperature and pressure relief valve protects water heaters and storage tanks from excessive temperature or pressure. It automatically opens to relieve steam or water when conditions exceed safe limits, preventing catastrophic failure. This ASME Section IV rated brass valve is common in commercial and residential hot water systems.
What are the specifications of the Watts 3/4 LF 100XL-4 valve?
The Watts 3/4 LF 100XL-4 is an ASME Section IV temperature and pressure relief valve with a brass body. It has a 3/4 in MNPT x 3/4 in FNPT connection size. The manufacturer part number is 3/4 LF 100XL-4. It is designed for use on water heaters and storage tanks requiring overpressure and overtemperature protection.
Where to buy a Watts temperature and pressure relief valve worldwide?
3G Electric supplies the Watts 3/4 LF 100XL-4 temperature and pressure relief valve to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. As a global industrial solutions provider, we source genuine Watts valves and support procurement across 14 industrial departments. Contact us for availability and lead time.
How to install a Watts temperature and pressure relief valve?
Install the Watts valve directly into the water heater or tank tapping using thread sealant on the male NPT end. Ensure the discharge pipe is directed downward and terminates in a safe, visible location per local codes. Never install a shutoff valve between the relief valve and the tank. Test operation after installation by lifting the lever briefly.
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3G Electric supplies Watts asme section iv temperature & pressure relief valves. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
