Watts Relief Valve: FNPTF x FNPTF, 1 1/4 in x 1 1/4 in, Copper Silicon Alloy
The WATTS Relief Valve (MPN 1-1/4 LF174A 75 FS) is an ASME Section XIII hot water pressure relief valve with FNPTF x FNPTF connections, sized 1 1/4 in x 1 1/4 in, constructed from copper silicon alloy, and has an…
SKU 3G-OTH-442490
Also listed as: 114LF174A75FS · 1 1 4 LF174A 75 FS · 1-1-4-LF174A-75-FS
Local availability & support
- Delivery
- Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
- Payment
- Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.
Need installation or engineering help?
Ask a question
Product Description
The WATTS Relief Valve (MPN 1-1/4 LF174A 75 FS) is an ASME Section XIII hot water pressure relief valve with FNPTF x FNPTF connections, sized 1 1/4 in x 1 1/4 in, constructed from copper silicon alloy, and has an overall height of 8 1/2 in.
Frequently Asked Questions
What is the Watts LF174A relief valve used for?
The Watts LF174A 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 discharging water when pressure exceeds the set limit, ensuring safe operation.
What are the specifications of the Watts 1-1/4 LF174A 75 FS?
This Watts relief valve has 1 1/4 inch FNPTF x FNPTF connections, a copper silicon alloy body, and an overall height of 8 1/2 inches. It is rated for hot water service under ASME Section XIII and carries the manufacturer part number 1-1/4 LF174A 75 FS.
Where to buy Watts relief valves worldwide?
3G Electric supplies Watts relief valves like the LF174A to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this ASME-rated valve for your industrial hot water system.
How to select the correct Watts pressure relief valve?
Select a Watts relief valve by matching the connection size, pressure rating, and material to your system requirements. For hot water applications, ensure ASME Section XIII certification. The LF174A with 1 1/4 inch FNPTF connections and copper silicon alloy is suitable for high-temperature hydronic systems.
Used in
Common applications for WattsWatts 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.
