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Watts 1-1/2 740 075 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 1-1/2 740 075 FS ASME Section XIII Hot Water Pressure Relief Valve

The WATTS Relief Valve is an ASME Section XIII Hot Water Pressure Relief Valve with FNPTF x FNPTF connections, sized 1 1/2 in x 2 in in iron, rated for a maximum operating pressure of 75 psi (MPN 1-1/2 740 075 FS).

SKU 3G-OTH-442542

Also listed as: 112740075FS · 1 1 2 740 075 FS · 1-1-2-740-075-FS

Brand
Watts
Item
1-1/2 740 075 FS ASME Section XIII Hot Water Pressure Relief Valve
Part Number
1-1/2 740 075 FS
Category
ASME Section XIII Hot Water Pressure Relief Valves
Available to Order
Also known as:1-1/2 740 075 FSWatts
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

Watts
Manufacturer Part Number
1-1/2 740 075 FS
Type
1 1/2 in x 2 in, Iron
Max. Op Pressure
75 psi

Technical Documents

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3G Electric (S) Pte. Ltd. — Singapore

Product Description

The WATTS Relief Valve is an ASME Section XIII Hot Water Pressure Relief Valve with FNPTF x FNPTF connections, sized 1 1/2 in x 2 in in iron, rated for a maximum operating pressure of 75 psi (MPN 1-1/2 740 075 FS).

Frequently Asked Questions

What is a Watts 1-1/2 740 075 FS relief valve used for?

This Watts ASME Section XIII hot water pressure relief valve protects boilers and water heaters from overpressure. It automatically opens at 75 psi to discharge excess pressure, preventing system damage. Common in commercial and industrial hydronic heating systems.

What are the specifications of the Watts 1-1/2 740 075 FS relief valve?

The Watts 1-1/2 740 075 FS is a 1 1/2 in x 2 in FNPTF x FNPTF iron relief valve with a maximum operating pressure of 75 psi. It is ASME Section XIII rated for hot water service. The iron body provides durability in high-temperature systems.

Where to buy a Watts 1-1/2 740 075 FS relief valve worldwide?

3G Electric supplies the Watts 1-1/2 740 075 FS relief valve to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time on this ASME Section XIII valve.

How to install a Watts 1-1/2 740 075 FS relief valve?

Install the Watts relief valve in the hot water outlet line of the boiler or heater, with the sensing element immersed in the top 6 inches of the tank. Ensure the discharge piping is directed to a safe drain and is not restricted. Follow local codes and the manufacturer's instructions.

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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