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Watts 1/2 LF53-125 Non-Code Pressure Relief Valve - Non-Code Air, Inert Gas & Liquids Pressure Relief Valves
WattsNon-Code Air, Inert Gas & Liquids Pressure Relief Valves

Watts 1/2 LF53-125 Non-Code Pressure Relief Valve

The WATTS Pressure Relief Valve (MPN 1/2 LF53-125) is a Non-Code Air, Inert Gas & Liquids Pressure Relief Valve with MNPTF x FNPTF connections, 1/2 in x 1/2 in, in brass, rated for 125 psi Max. Op Pressure and 180°F.

SKU 3G-OTH-437984

Also listed as: 12LF53125 · 1 2 LF53 125 · 1-2-LF53-125

Brand
Watts
Item
1/2 LF53-125 Non-Code Pressure Relief Valve
Part Number
1/2 LF53-125
Category
Non-Code Air, Inert Gas & Liquids Pressure Relief Valves
Available to Order
Also known as:1/2 LF53-125Watts
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Technical Specifications

Watts
Manufacturer Part Number
1/2 LF53-125
Type
1/2 in x 1/2 in, Brass, 180°F
Max. Op Pressure
125 psi

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3G Electric (S) Pte. Ltd. — Singapore

Product Description

The WATTS Pressure Relief Valve (MPN 1/2 LF53-125) is a Non-Code Air, Inert Gas & Liquids Pressure Relief Valve with MNPTF x FNPTF connections, 1/2 in x 1/2 in, in brass, rated for 125 psi Max. Op Pressure and 180°F.

Frequently Asked Questions

What is the WATTS 1/2 LF53-125 pressure relief valve used for?

The WATTS 1/2 LF53-125 is a non-code pressure relief valve designed for air, inert gas, and liquid systems. It protects equipment from overpressure up to 125 psi and 180°F, commonly used in industrial piping, boilers, and hydraulic circuits where overpressure safety is required.

What are the specifications of the WATTS 1/2 LF53-125 pressure relief valve?

This WATTS valve has 1/2 in MNPTF x 1/2 in FNPTF connections, a brass body, maximum operating pressure of 125 psi, and maximum temperature of 180°F. It is a non-code model for air, inert gas, and liquids, with MPN 1/2 LF53-125.

Where to buy the WATTS 1/2 LF53-125 pressure relief valve worldwide?

3G Electric supplies the WATTS 1/2 LF53-125 pressure relief valve worldwide. As a global industrial distributor since 1990, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time.

How to install the WATTS 1/2 LF53-125 pressure relief valve?

Install the WATTS valve in a vertical position with the inlet connected to the system and outlet piped to a safe discharge area. Ensure the set pressure does not exceed 125 psi. Use thread sealant on MNPTF connections and test for leaks after installation.

Used in

Common applications for Watts
Commercial plumbing – Watts standard capacity water pressure regulators (3/8 LF 26AB) for stabilizing incoming water pressure
Industrial steam systems – Watts 152A series steam pressure regulators for pressure reduction in process and heating lines
Cross-connection control – Watts 757 double check backflow preventers for commercial and industrial water supply protection
Boiler safety – Watts ASME Section XIII temperature and pressure relief valves for overpressure protection in heating systems
Hydronic heating – Watts CP16 pilot-operated pressure regulators for maintaining consistent pressure in steam or water loops
Water hammer mitigation – Watts LF15M2-A water hammer arrestors for absorbing surges in quick-closing valve applications
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Watts Products

3G Electric supplies Watts non-code air, inert gas & liquids 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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