Watts 3/4 LF40L-3-125/210 FS ASME Section XIII Temperature &
The WATTS Temperature and Pressure Relief Valve is an ASME Section XIII valve with a Copper Silicon Alloy body. This model, MPN 3/4 LF40L-3-125/210 FS, features MNPTF x FNPTF connections.
SKU 3G-OTH-430660
Also listed as: 34LF40L3125210FS · 3 4 LF40L 3 125 210 FS · 3-4-LF40L-3-125-210-FS
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
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Product Description
The WATTS Temperature and Pressure Relief Valve is an ASME Section XIII valve with a Copper Silicon Alloy body. This model, MPN 3/4 LF40L-3-125/210 FS, features MNPTF x FNPTF connections.
Frequently Asked Questions
What is the WATTS 3/4 LF40L-3-125/210 FS temperature and pressure relief valve used for?
This WATTS valve protects water heaters and storage tanks from excessive temperature or pressure. It automatically opens to relieve pressure or thermal expansion, preventing catastrophic failure. Common in commercial and industrial hot-water systems, it meets ASME Section XIII safety standards for reliable overpressure protection.
What are the specifications of the WATTS 3/4 LF40L-3-125/210 FS valve?
This WATTS valve has a Copper Silicon Alloy body with MNPTF x FNPTF connections. The manufacturer part number is 3/4 LF40L-3-125/210 FS. It is certified to ASME Section XIII, ensuring it meets rigorous safety and performance requirements for temperature and pressure relief applications.
Where to buy the WATTS 3/4 LF40L-3-125/210 FS valve worldwide?
3G Electric supplies the WATTS 3/4 LF40L-3-125/210 FS valve to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. As a global industrial solutions provider, we source genuine WATTS parts and support your procurement from order to arrival.
How to install a WATTS temperature and pressure relief valve?
Install the WATTS valve in the tank's designated T&P port, ensuring the sensing element extends into the tank. Use thread sealant on the MNPTF x FNPTF connections. Pipe the discharge to a safe drain, avoiding any restrictions. Always follow local codes and the manufacturer's instructions for proper operation.
Used in
Common applications for WattsWatts Products
3G Electric supplies Watts asme section xiii temperature & pressure relief valves. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
