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Watts Temperature and Pressure Relief Valve: MNPT x FNPT - Non-Code Temperature & Pressure Relief Valves
WattsNon-Code Temperature & Pressure Relief Valves

Watts Temperature and Pressure Relief Valve: MNPT x FNPT

The WATTS Temperature and Pressure Relief Valve is a Non-Code valve with a 1/2 in MNPT x 1/2 in FNPT connection size. Its body is made of Copper Silicon Alloy, and the manufacturer part number is 1/2 LF1XL-8 150-210.

SKU 3G-OTH-432647

Also listed as: 12LF1XL8150210 · 1 2 LF1XL 8 150 210 · 1-2-LF1XL-8-150-210

Brand
Watts
Item
Temperature and Pressure Relief Valve: MNPT x FNPT
Category
Non-Code Temperature & Pressure Relief Valves
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Technical Specifications

Watts
Manufacturer Part Number
1/2 LF1XL-8 150-210
Body Material
Copper Silicon Alloy
Connection Size
1/2 in x 1/2 in

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Watts Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The WATTS Temperature and Pressure Relief Valve is a Non-Code valve with a 1/2 in MNPT x 1/2 in FNPT connection size. Its body is made of Copper Silicon Alloy, and the manufacturer part number is 1/2 LF1XL-8 150-210.

Frequently Asked Questions

What is the WATTS Temperature and Pressure Relief Valve used for?

The WATTS Temperature and Pressure Relief Valve protects water heaters and storage tanks from excessive temperature or pressure. It automatically opens to discharge water when internal conditions exceed safe limits, preventing equipment damage or failure. This Non-Code valve is suitable for residential and light commercial applications where local codes permit its use.

What are the specifications of the WATTS 1/2 LF1XL-8 150-210 valve?

This WATTS valve has a 1/2 in MNPT x 1/2 in FNPT connection size and a copper silicon alloy body. The manufacturer part number is 1/2 LF1XL-8 150-210. It is a Non-Code Temperature and Pressure Relief Valve designed for standard water heater protection. Always verify local code compliance before installation.

Where to buy the WATTS 1/2 LF1XL-8 150-210 valve worldwide?

3G Electric supplies the WATTS 1/2 LF1XL-8 150-210 valve worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your location. Contact our team to source this valve for your project. We provide reliable sourcing and shipping to any country.

How to install a WATTS Temperature and Pressure Relief Valve?

Install the WATTS valve vertically in the tank's T&P port, ensuring the discharge pipe slopes downward and terminates near a floor drain. Never cap or plug the outlet. Use thread sealant on the male threads and tighten to manufacturer torque specs. Test operation after installation by lifting the lever briefly.

Used in

Common applications for Watts
Industrial burner gas safety systems — Watts HF2000 filters with GF-series seal kits maintain clean, regulated gas supply to burner pilot and main flame controls
Commercial heating and boiler installations — Modular filter assemblies support preventive maintenance and component replacement without full system shutdown
Process gas delivery pipelines — DN25 through DN125 filter bodies accommodate varying flow rates and inlet pressures across manufacturing and chemical processes
Gas pressure regulation benches — Multi-stage Watts filter platforms integrate with pressure reducers and safety shutoff valves in test and calibration environments
Equipment retrofit and upgrade projects — Available connection sizes and seal kits enable adaptation of newer Watts components into legacy gas control systems
Planned maintenance and spare-parts inventory — Filter seal kits allow facilities to stock consumables in advance, reducing downtime during scheduled gas system servicing

Watts Products

3G Electric supplies Watts non-code temperature & pressure relief valves. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Cross-referenced by specification & description
WATTS Pressure Relief Valve: MNPTF x FNPTF, 1/2 in x 1/2 in, Brass, 75 psi Max. Op Pressure, 180°F (MPN 1/2 LF53-75)
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WATTS Pressure Relief Valve: MNPTF x FNPTF, 1/2 in x 1/2 in, Brass, 75 psi Max. Op Pressure, 180°F (MPN 1/2 LF53-75)
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WATTS Pressure Relief Valve: MNPTF x FNPTF, 1/2 in x 1/2 in, Brass, 125 psi Max. Op Pressure, 180°F (MPN 1/2 LF53-125)
WATTS Temperature and Pressure Relief Valve: MNPT x FNPT, 3/4 in x 3/4 in Connection Size (MPN 3/4 LF100XL 175-210)
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WATTS Temperature and Pressure Relief Valve: MNPT x FNPT, 3/4 in x 3/4 in Connection Size (MPN 3/4 LF100XL 175-210)
WATTS Pressure Relief Valve: MNPTF x FNPTF, 3/4 in x 1/2 in, Brass, 125 psi Max. Op Pressure, 180°F (MPN 3/4 LF53-125)
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WATTS Pressure Relief Valve: MNPTF x FNPTF, 3/4 in x 1/2 in, Brass, 125 psi Max. Op Pressure, 180°F (MPN 3/4 LF53-125)
WATTS Temperature and Pressure Relief Valve: MNPT x FNPT, 3/4 in x 3/4 in Connection Size (MPN 3/4 LF100XL 125-210)
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WATTS Temperature and Pressure Relief Valve: MNPT x FNPT, 3/4 in x 3/4 in Connection Size (MPN 3/4 LF100XL 125-210)
WATTS Temperature and Pressure Relief Valve: MNPT x FNPT, 3/4 in x 3/4 in Connection Size (MPN 3/4 LF L100XL 150-210)
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WATTS Temperature and Pressure Relief Valve: MNPT x FNPT, 3/4 in x 3/4 in Connection Size (MPN 3/4 LF L100XL 150-210)

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