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Watts Pressure Relief Valve: MNPT x FNPT, 1/2 in x 1/2 in, Bronze, 175 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: MNPT x FNPT, 1/2 in x 1/2 in, Bronze, 175 psi Max. Op Pressure

The WATTS Pressure Relief Valve (MPN 1/2 53L-175) is a non-code relief valve for air, inert gas, and liquids, with a 1/2 in MNPT x 1/2 in FNPT bronze body rated for 175 psi maximum operating pressure and 210°F. 3G…

SKU 3G-OTH-437978

Brand
Watts
Item
Pressure Relief Valve: MNPT x FNPT, 1/2 in x 1/2 in, Bronze, 175 psi Max. Op Pressure
Category
Non-Code Air, Inert Gas & Liquids Pressure Relief Valves
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Technical Specifications

Watts
Manufacturer Part Number
1/2 53L-175
Type
1/2 in x 1/2 in, Bronze, 210°F
Max. Op Pressure
175 psi
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Watts Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The WATTS Pressure Relief Valve (MPN 1/2 53L-175) is a non-code relief valve for air, inert gas, and liquids, with a 1/2 in MNPT x 1/2 in FNPT bronze body rated for 175 psi maximum operating pressure and 210°F. 3G Electric interprets this demand and delivers the genuine WATTS valve across 14 industrial departments, with specialist depth in combustion, pumps, and controls as an authorised distributor.

Frequently Asked Questions

What is the Watts 1/2 53L-175 pressure relief valve used for?

The Watts 1/2 53L-175 is a non-code pressure relief valve designed for air, inert gas, and liquid systems. It protects equipment from overpressure up to 175 psi and 210°F, commonly used in industrial piping, compressors, and hydraulic circuits where precise pressure control is needed.

What are the specifications of the Watts 1/2 53L-175 pressure relief valve?

This Watts valve has a 1/2-inch MNPT x 1/2-inch FNPT connection, bronze body, maximum operating pressure of 175 psi, and maximum temperature of 210°F. It is a non-code model for air, inert gas, and liquids, with part number 1/2 53L-175.

Where to buy the Watts 1/2 53L-175 pressure relief valve worldwide?

3G Electric supplies the Watts 1/2 53L-175 pressure relief valve worldwide. As a global industrial distributor since 1990, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time.

How to install the Watts 1/2 53L-175 pressure relief valve?

Install the Watts valve with the inlet connected to the system and outlet to a safe discharge path. Use thread sealant on MNPT threads, tighten to manufacturer torque specs, and ensure the valve is upright. Test after installation to verify set pressure and reseat function.

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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