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Watts Pressure Relief Valve: MNPTF x FNPTF, 3/4 in x 1/2 in, Brass, 125 psi Max. Op Pressure - Non-Code Air, Inert Gas & Liquids Pressure Relief Valves
WattsNon-Code Air, Inert Gas & Liquids Pressure Relief Valves

Watts Pressure Relief Valve: MNPTF x FNPTF, 3/4 in x 1/2 in, Brass, 125 psi Max. Op Pressure

The WATTS Pressure Relief Valve (MPN 3/4 LF53-125) is a Non-Code Air, Inert Gas & Liquids Pressure Relief Valve with a 3/4 in MNPTF x 1/2 in FNPTF connection, constructed in brass. It is rated for a maximum operating…

SKU 3G-OTH-437952

Brand
Watts
Item
Pressure Relief Valve: MNPTF x FNPTF, 3/4 in x 1/2 in, Brass, 125 psi Max. Op Pressure
Category
Non-Code Air, Inert Gas & Liquids Pressure Relief Valves
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Technical Specifications

Watts
Manufacturer Part Number
3/4 LF53-125
Type
3/4 in x 1/2 in, Brass, 180°F
Max. Op Pressure
125 psi
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Watts Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The WATTS Pressure Relief Valve (MPN 3/4 LF53-125) is a Non-Code Air, Inert Gas & Liquids Pressure Relief Valve with a 3/4 in MNPTF x 1/2 in FNPTF connection, constructed in brass. It is rated for a maximum operating pressure of 125 psi and a maximum temperature of 180°F.

Frequently Asked Questions

What is the WATTS 3/4 LF53-125 pressure relief valve used for?

The WATTS 3/4 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, compressors, and hydraulic circuits where overpressure protection is needed.

What are the specifications of the WATTS 3/4 LF53-125?

This WATTS valve has a 3/4 in MNPTF x 1/2 in FNPTF connection, brass body, maximum operating pressure of 125 psi, and maximum temperature of 180°F. It is a non-code relief valve for air, inert gas, and liquids, with MPN 3/4 LF53-125.

Where to buy the WATTS 3/4 LF53-125 worldwide?

3G Electric supplies the WATTS 3/4 LF53-125 pressure relief valve worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time.

How to install the WATTS 3/4 LF53-125 pressure relief valve?

Install the WATTS valve with the inlet connected to the system and outlet to a safe discharge area. Use thread sealant on MNPTF connections, tighten to manufacturer torque specs, and test at system pressure. Ensure orientation allows proper flow and no blockage downstream.

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 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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