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Watts Relief Valve: FNPTF x FNPTF, 2 in x 2 in, Bronze - ASME Section XIII Hot Water Pressure Relief Valves
WattsASME Section XIII Hot Water Pressure Relief Valves

Watts Relief Valve: FNPTF x FNPTF, 2 in x 2 in, Bronze

SKU 3G-OTH-442540

Brand
Watts
Item
Relief Valve: FNPTF x FNPTF, 2 in x 2 in, Bronze
Category
ASME Section XIII Hot Water Pressure Relief Valves
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Technical Specifications

Watts
Manufacturer Part Number
2 174A 150 FS
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Watts Products
3G Electric (S) Pte. Ltd. — Singapore

Frequently Asked Questions

What is a Watts 174A relief valve used for?

The Watts 174A relief valve is used to protect hot water heating systems from overpressure. It automatically opens when system pressure exceeds 150 psi, preventing damage to boilers, tanks, and piping. Common in commercial and industrial hydronic systems.

What are the specifications of the Watts 2 174A 150 FS relief valve?

The Watts 2 174A 150 FS is an ASME Section XIII hot water pressure relief valve. It has 2-inch FNPTF inlet and outlet connections, a bronze body, and a maximum operating pressure of 150 psi. The manufacturer part number is 2 174A 150 FS.

Where to buy Watts 174A relief valves worldwide?

3G Electric supplies Watts 174A relief valves worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this ASME-rated bronze relief valve.

How to install a Watts 174A relief valve?

Install the Watts 174A relief valve in the hot water system's discharge line, ensuring the valve body is upright and the discharge pipe is directed to a safe drain. Use thread sealant on the 2-inch FNPTF connections. Never install a shutoff valve between the relief valve and the system.

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 asme section xiii hot water 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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