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Watts Pressure Relief Valve: FNPTF x FNPTF, 1 in x 1 in, Copper Silicon Alloy - ASME Section XIII Hot Water Pressure Relief Valves
WattsASME Section XIII Hot Water Pressure Relief Valves

Watts Pressure Relief Valve: FNPTF x FNPTF, 1 in x 1 in, Copper Silicon Alloy

The WATTS Pressure Relief Valve is an ASME Section XIII hot water pressure relief valve with FNPTF x FNPTF connections, 1 in x 1 in size, made of copper silicon alloy, and has an overall height of 5 3/4 in (MPN 0121494).

SKU 3G-OTH-442541

Brand
Watts
Item
Pressure Relief Valve: FNPTF x FNPTF, 1 in x 1 in, Copper Silicon Alloy
Category
ASME Section XIII Hot Water Pressure Relief Valves
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Technical Specifications

Watts
Manufacturer Part Number
0121494
Type
1 in x 1 in, Copper Silicon Alloy
Overall Ht
5 3/4 in
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Watts Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The WATTS Pressure Relief Valve is an ASME Section XIII hot water pressure relief valve with FNPTF x FNPTF connections, 1 in x 1 in size, made of copper silicon alloy, and has an overall height of 5 3/4 in (MPN 0121494).

Frequently Asked Questions

What is a Watts pressure relief valve used for?

A Watts pressure relief valve protects hot water systems from overpressure. It automatically opens when pressure exceeds a safe limit, preventing damage to boilers, tanks, and piping. This ASME Section XIII rated valve is suitable for commercial and industrial hot water applications.

What are the specifications of the Watts 0121494 pressure relief valve?

The Watts 0121494 is a 1 in x 1 in FNPTF x FNPTF pressure relief valve made of copper silicon alloy. It has an overall height of 5 3/4 in and is rated under ASME Section XIII for hot water service. The manufacturer part number is 0121494.

Where to buy a Watts pressure relief valve worldwide?

3G Electric supplies and delivers Watts pressure relief valves worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on the Watts 0121494 or other industrial equipment needs.

How to install a Watts pressure relief valve?

Install the Watts pressure relief valve in the hot water system discharge line with the flow arrow pointing away from the vessel. Use pipe thread sealant on the FNPTF connections. Ensure the discharge pipe is routed to a safe drain and is not blocked. Follow local codes and the manufacturer's instructions.

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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