Watts Temperature and Pressure Relief Valve: Section XIII ASME Section
The WATTS Temperature and Pressure Relief Valve is an ASME Section XIII valve with a Copper Silicon Alloy body. This product, model 1-1/4 LFN241X-5 150 FS, features MNPTF x FNPTF connections.
SKU 3G-OTH-430653
Need installation or engineering help?
Ask a question
Product Description
The WATTS Temperature and Pressure Relief Valve is an ASME Section XIII valve with a Copper Silicon Alloy body. This product, model 1-1/4 LFN241X-5 150 FS, features MNPTF x FNPTF connections.
Frequently Asked Questions
What is the WATTS Temperature and Pressure Relief Valve used for?
The WATTS Temperature and Pressure Relief Valve is used to protect water heaters and storage tanks from excessive temperature or pressure. It automatically opens to discharge water when unsafe conditions occur, preventing equipment damage or failure. This ASME Section XIII valve is suitable for commercial and industrial hot water systems.
What are the specifications of the WATTS 1-1/4 LFN241X-5 150 FS valve?
This WATTS valve is an ASME Section XIII temperature and pressure relief valve with a Copper Silicon Alloy body. The model is 1-1/4 LFN241X-5 150 FS, featuring MNPTF x FNPTF connections. It is designed for use in commercial and industrial water heating applications requiring reliable overpressure and overtemperature protection.
Where to buy the WATTS 1-1/4 LFN241X-5 150 FS valve worldwide?
You can source the WATTS 1-1/4 LFN241X-5 150 FS valve through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time on this ASME Section XIII relief valve.
How to install a WATTS temperature and pressure relief valve?
Install the WATTS valve in the designated tapping of the water heater or tank, ensuring the sensing element extends into the tank. Use thread sealant on the MNPTF x FNPTF connections and orient the discharge piping downward to a safe drain. Follow local plumbing 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.















