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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

Watts ASME Section XIII Hot Water Pressure Relief Valves.

SKU 3G-OTH-442505

Also listed as: 2174A075FS · 2-174A-075-FS

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 075 FS

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

Product Description

Watts ASME Section XIII Hot Water Pressure Relief Valves.

Frequently Asked Questions

What is the Watts 2 174A 075 FS relief valve used for?

The Watts 2 174A 075 FS is an ASME Section XIII hot water pressure relief valve used in commercial and industrial hydronic systems. It protects boilers, water heaters, and storage tanks from overpressure by automatically opening at a set pressure, preventing catastrophic failure in high-temperature water applications.

What are the specifications of the Watts 2 174A 075 FS relief valve?

This Watts relief valve has a 2-inch FNPTF x FNPTF connection, a bronze body, and a maximum operating pressure of 150 psi. It is ASME Section XIII certified for hot water service. The manufacturer part number is 2 174A 075 FS, and it is designed for reliable overpressure protection in industrial systems.

Where to buy the Watts 2 174A 075 FS relief valve worldwide?

You can source the Watts 2 174A 075 FS relief valve through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time; we supply genuine Watts components for international projects.

How to install a Watts 2 174A 075 FS relief valve?

Install the Watts relief valve in the hot water system's discharge line with the arrow on the body pointing in the flow direction. Ensure the valve is upright and the discharge pipe is sized to handle full flow. Follow local codes and ASME guidelines; never cap or block the outlet. Test operation after installation.

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, 2 in x 2 in, Bronze, 150 psi Max. Op Pressure (MPN 2 174A 050 FS)
Watts
WATTS Relief Valve: FNPTF x FNPTF, 2 in x 2 in, Bronze, 150 psi Max. Op Pressure (MPN 2 174A 050 FS)
WATTS Relief Valve: FNPTF x FNPTF, 2 in x 2 in, Bronze, 150 psi Max. Op Pressure (MPN 2 174A 100 FS)
Watts
WATTS Relief Valve: FNPTF x FNPTF, 2 in x 2 in, Bronze, 150 psi Max. Op Pressure (MPN 2 174A 100 FS)
WATTS Relief Valve: FNPTF x FNPTF, 2 in x 2 in, Bronze, 150 psi Max. Op Pressure (MPN 2 174A 125 FS)
Watts
WATTS Relief Valve: FNPTF x FNPTF, 2 in x 2 in, Bronze, 150 psi Max. Op Pressure (MPN 2 174A 125 FS)
ASME Section XIII hot water pressure relief valve with 2-inch FNPTF inlet and outlet connections. Bronze body construction. Opens automatically when system pressure exceeds 150 psi to protect against overpressure in hot water heating systems
Watts
ASME Section XIII hot water pressure relief valve with 2-inch FNPTF inlet and outlet connections. Bronze body construction. Opens automatically when system pressure exceeds 150 psi to protect against overpressure in hot water heating systems
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)
Watts
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)
WATTS Relief Valve: FNPTF x FNPTF, 2 in x 2 in, Bronze, 150 psi Max. Op Pressure (MPN 2 174A 030 FS)
Watts
WATTS Relief Valve: FNPTF x FNPTF, 2 in x 2 in, Bronze, 150 psi Max. Op Pressure (MPN 2 174A 030 FS)

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This ASME Section XIII pressure relief valve is designed for hot water systems, automatically opening when pressure exceeds safe limits to prevent overpressure damage. Constructed with a copper silicon alloy body and featuring FNPTF x FNPTF connections, it is suitable for use in boilers, water heaters, and hydronic heating systems
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