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

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

The WATTS Pressure Relief Valve (MPN 0121479) is an ASME Section XIII hot water pressure relief valve with 3/4 in x 3/4 in FNPTF connections, constructed from Copper Silicon Alloy. 3G Electric interprets your demand…

SKU 3G-OTH-442466

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

Watts
Manufacturer Part Number
0121479
Type
3/4 in x 3/4 in, Copper Silicon Alloy
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Watts Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The WATTS Pressure Relief Valve (MPN 0121479) is an ASME Section XIII hot water pressure relief valve with 3/4 in x 3/4 in FNPTF connections, constructed from Copper Silicon Alloy. 3G Electric interprets your demand for this OEM-specified valve, sourcing it across 14 industrial departments with specialist depth in combustion, pumps, and controls to ensure the right solution.

Frequently Asked Questions

What is a Watts pressure relief valve used for?

A Watts pressure relief valve protects hot water heating systems from overpressure. It automatically opens when pressure exceeds a safe limit, preventing equipment damage or failure. Common in boilers, water heaters, and industrial thermal systems.

What are the specifications of the Watts 0121479 pressure relief valve?

The Watts 0121479 is an ASME Section XIII hot water pressure relief valve. It has 3/4 in FNPTF x 3/4 in FNPTF connections and a copper silicon alloy body. The manufacturer part number is 0121479, and it is designed for hot water service.

Where to buy Watts pressure relief valves worldwide?

You can source Watts pressure relief valves worldwide through 3G Electric. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on the Watts 0121479 or other models.

How to install a Watts pressure relief valve?

Install the Watts pressure relief valve in the hot water system discharge line, ensuring the valve body is upright. Use thread sealant on the FNPTF connections and tighten to manufacturer torque specs. Always pipe the discharge to a safe drain location per local codes.

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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