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Watts 1-1/4 740 050 FS ASME Section XIII Hot Water Pressure Relief Valve - ASME Section XIII Hot Water Pressure Relief Valves
WattsASME Section XIII Hot Water Pressure Relief Valves

Watts 1-1/4 740 050 FS ASME Section XIII Hot Water Pressure Relief Valve

The WATTS Relief Valve (SKU 3G-OTH-442519) is an ASME Section XIII Hot Water Pressure Relief Valve with FNPTF x FNPTF connections, sized 1 1/4 in x 1 1/2 in in iron, rated for a maximum operating pressure of 75 psi…

SKU 3G-OTH-442519

Also listed as: 114740050FS · 1 1 4 740 050 FS · 1-1-4-740-050-FS

Brand
Watts
Item
1-1/4 740 050 FS ASME Section XIII Hot Water Pressure Relief Valve
Part Number
1-1/4 740 050 FS
Category
ASME Section XIII Hot Water Pressure Relief Valves
Available to Order
Also known as:1-1/4 740 050 FSWatts
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Technical Specifications

Watts
Manufacturer Part Number
1-1/4 740 050 FS
Type
1 1/4 in x 1 1/2 in, Iron
Max. Op Pressure
75 psi

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3G Electric (S) Pte. Ltd. — Singapore

Product Description

The WATTS Relief Valve (SKU 3G-OTH-442519) is an ASME Section XIII Hot Water Pressure Relief Valve with FNPTF x FNPTF connections, sized 1 1/4 in x 1 1/2 in in iron, rated for a maximum operating pressure of 75 psi (MPN 1-1/4 740 050 FS).

Frequently Asked Questions

What is the Watts 1-1/4 740 050 FS relief valve used for?

The Watts 1-1/4 740 050 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 equipment damage and ensuring safe operation.

What are the specifications of the Watts 1-1/4 740 050 FS relief valve?

This Watts relief valve has a 1 1/4 in FNPTF inlet and 1 1/2 in FNPTF outlet, with an iron body. Its maximum operating pressure is 75 psi. The manufacturer part number is 1-1/4 740 050 FS, and it is designed for ASME Section XIII hot water pressure relief applications.

Where to buy the Watts 1-1/4 740 050 FS relief valve worldwide?

3G Electric supplies the Watts 1-1/4 740 050 FS relief valve worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and a quote for your region.

How to install a Watts hot water pressure relief valve?

Install the Watts relief valve in the hot water system's tapping, ensuring the inlet is connected to the pressure vessel and the outlet is piped to a safe discharge location. Use thread sealant on the FNPTF connections, and never install a shut-off valve between the valve and the system. Test operation after installation.

Used in

Common applications for Watts
Commercial plumbing – Watts standard capacity water pressure regulators (3/8 LF 26AB) for stabilizing incoming water pressure
Industrial steam systems – Watts 152A series steam pressure regulators for pressure reduction in process and heating lines
Cross-connection control – Watts 757 double check backflow preventers for commercial and industrial water supply protection
Boiler safety – Watts ASME Section XIII temperature and pressure relief valves for overpressure protection in heating systems
Hydronic heating – Watts CP16 pilot-operated pressure regulators for maintaining consistent pressure in steam or water loops
Water hammer mitigation – Watts LF15M2-A water hammer arrestors for absorbing surges in quick-closing valve applications
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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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