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Watts Relief Valve: FNPTF x FNPTF, 3/4 in x 3/4 in, Bronze - ASME Section XIII Hot Water Pressure Relief Valves
WattsASME Section XIII Hot Water Pressure Relief Valves

Watts Relief Valve: FNPTF x FNPTF, 3/4 in x 3/4 in, Bronze

The WATTS Relief Valve (MPN 3/4 174A 050 FS) is an ASME Section XIII hot water pressure relief valve with FNPTF x FNPTF connections, available in a 3/4 in x 3/4 in bronze configuration. It has a maximum operating…

SKU 3G-OTH-442459

Also listed as: 34174A050FS · 3 4 174A 050 FS · 3-4-174A-050-FS

Brand
Watts
Item
Relief Valve: FNPTF x FNPTF, 3/4 in x 3/4 in, Bronze
Category
ASME Section XIII Hot Water Pressure Relief Valves
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Technical Specifications

Watts
Manufacturer Part Number
3/4 174A 050 FS
Type
3/4 in x 3/4 in, Bronze
Max. Op Pressure
150 psi

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

Product Description

The WATTS Relief Valve (MPN 3/4 174A 050 FS) is an ASME Section XIII hot water pressure relief valve with FNPTF x FNPTF connections, available in a 3/4 in x 3/4 in bronze configuration. It has a maximum operating pressure of 150 psi.

Frequently Asked Questions

What is the Watts 3/4 174A 050 FS relief valve used for?

The Watts 3/4 174A 050 FS is an ASME Section XIII hot water pressure relief valve used to protect water heaters and boilers from overpressure. It automatically opens at a set pressure to discharge excess water, preventing system damage. Common in commercial and industrial hot water systems.

What are the specifications of the Watts 3/4 174A 050 FS relief valve?

This Watts relief valve has a bronze body with FNPTF x FNPTF connections, 3/4 in x 3/4 in size, and a maximum operating pressure of 150 psi. It is ASME Section XIII certified for hot water service. The manufacturer part number is 3/4 174A 050 FS.

Where to buy the Watts 3/4 174A 050 FS relief valve worldwide?

3G Electric supplies the Watts 3/4 174A 050 FS relief valve worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time.

How to install a Watts 3/4 174A 050 FS relief valve?

Install the Watts 3/4 174A 050 FS relief valve in the hot water system's designated tapping, ensuring the discharge pipe is directed to a safe drain. Use thread sealant on the FNPTF connections and tighten to manufacturer torque specs. Never install downstream of a shutoff valve.

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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Compatible alternatives & equivalents

Cross-referenced by specification & description
WATTS Relief Valve: FNPTF x FNPTF, 3/4 in x 3/4 in, Bronze, 150 psi Max. Op Pressure (MPN 3/4 174A 075 FS)
Watts
WATTS Relief Valve: FNPTF x FNPTF, 3/4 in x 3/4 in, Bronze, 150 psi Max. Op Pressure (MPN 3/4 174A 075 FS)
WATTS Relief Valve: FNPTF x FNPTF, 3/4 in x 3/4 in, Bronze, 150 psi Max. Op Pressure (MPN 3/4 174A 100 FS)
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WATTS Relief Valve: FNPTF x FNPTF, 3/4 in x 3/4 in, Bronze, 150 psi Max. Op Pressure (MPN 3/4 174A 100 FS)
WATTS Relief Valve: FNPTF x FNPTF, 3/4 in x 3/4 in, Bronze, 150 psi Max. Op Pressure (MPN 3/4 174A 150 FS)
Watts
WATTS Relief Valve: FNPTF x FNPTF, 3/4 in x 3/4 in, Bronze, 150 psi Max. Op Pressure (MPN 3/4 174A 150 FS)
WATTS Relief Valve: FNPTF x FNPTF, 3/4 in x 3/4 in, Bronze, 20 psi Max. Op Pressure (MPN 3/4 174A 030 FS)
Watts
WATTS Relief Valve: FNPTF x FNPTF, 3/4 in x 3/4 in, Bronze, 20 psi Max. Op Pressure (MPN 3/4 174A 030 FS)
WATTS Relief Valve: FNPTF x FNPTF, 3/4 in x 3/4 in, Bronze, 150 psi Max. Op Pressure (MPN 3/4 174A 125 FS)
Watts
WATTS Relief Valve: FNPTF x FNPTF, 3/4 in x 3/4 in, Bronze, 150 psi Max. Op Pressure (MPN 3/4 174A 125 FS)
WATTS Relief Valve: FNPTF x FNPTF, 1 1/4 in x 1 1/4 in, Bronze, 150 psi Max. Op Pressure (MPN 1-1/4 174A 125 FS)
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WATTS Relief Valve: FNPTF x FNPTF, 1 1/4 in x 1 1/4 in, Bronze, 150 psi Max. Op Pressure (MPN 1-1/4 174A 125 FS)

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WATTS Relief Valve: FNPTF x FNPTF, 1 1/2 in x 1 1/2 in, Bronze, 150 psi Max. Op Pressure (MPN 1-1/2 174A 150 FS)
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WATTS Relief Valve: FNPTF x FNPTF, 1 1/2 in x 1 1/2 in, Bronze, 150 psi Max. Op Pressure (MPN 1-1/2 174A 150 FS)