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Watts 1-1/2 LF340X-8 150 FS ASME Section XIII Temperature & - ASME Section XIII Temperature & Pressure Relief Valves
WattsASME Section XIII Temperature & Pressure Relief Valves

Watts 1-1/2 LF340X-8 150 FS ASME Section XIII Temperature &

The WATTS Temperature and Pressure Relief Valve is an ASME Section XIII valve designed for overpressure and overtemperature protection. This model, MPN 1-1/2 LF340X-8 150 FS, features a Copper Silicon Alloy body and…

SKU 3G-OTH-430654

Also listed as: 112LF340X8150FS · 1 1 2 LF340X 8 150 FS · 1-1-2-LF340X-8-150-FS

Brand
Watts
Item
1-1/2 LF340X-8 150 FS ASME Section XIII Temperature &
Part Number
1-1/2 LF340X-8 150 FS
Category
ASME Section XIII Temperature & Pressure Relief Valves
Available to Order
Also known as:1-1/2 LF340X-8 150 FSWatts
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Technical Specifications

Watts
Manufacturer Part Number
1-1/2 LF340X-8 150 FS
Type
FNPTF x FNPTF
Body Material
Copper Silicon Alloy

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3G Electric (S) Pte. Ltd. — Singapore

Product Description

The WATTS Temperature and Pressure Relief Valve is an ASME Section XIII valve designed for overpressure and overtemperature protection. This model, MPN 1-1/2 LF340X-8 150 FS, features a Copper Silicon Alloy body and FNPTF x FNPTF connections. It is a Section XIII ASME-rated relief valve from the WATTS brand.

Frequently Asked Questions

What is the WATTS LF340X-8 temperature and pressure relief valve used for?

The WATTS LF340X-8 is an ASME Section XIII temperature and pressure relief valve used to protect water heaters and storage tanks from excessive temperature or pressure. It automatically opens when set limits are exceeded, preventing catastrophic failure in commercial and industrial hot-water systems.

What are the specifications of the WATTS 1-1/2 LF340X-8 150 FS valve?

This WATTS valve has a Copper Silicon Alloy body, FNPTF x FNPTF connections, and is ASME Section XIII rated. The manufacturer part number is 1-1/2 LF340X-8 150 FS. It is designed for overpressure and overtemperature relief in industrial water systems.

Where to buy the WATTS LF340X-8 temperature and pressure relief valve worldwide?

3G Electric supplies the WATTS LF340X-8 temperature and pressure relief valve worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time.

How to install a WATTS ASME Section XIII relief valve?

Install the WATTS valve in the designated tapping of the water heater or tank, ensuring the sensing element is immersed in the top 6 inches of water. The discharge piping must be directed downward and terminate near a drain. Follow local codes and the manufacturer's instructions for safe operation.

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 temperature & 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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This temperature and pressure relief valve features a copper silicon alloy body with FNPTF x FNPTF connections in a 1 in x 1 in size. It is certified to ASME Section XIII standards and is used to protect water heaters and boilers from overpressure and overtemperature conditions in hydronic and potable water systems
This ASME Section XIII temperature and pressure relief valve features a copper silicon alloy body and MNPTF x FNPTF connections. It is designed to protect water heaters and storage tanks from excessive temperature or pressure by automatically discharging water when unsafe conditions occur
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This ASME Section XIII temperature and pressure relief valve features a copper silicon alloy body and MNPTF x FNPTF connections. It is designed to protect water heaters and storage tanks from excessive temperature or pressure by automatically discharging water when unsafe conditions occur
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This ASME Section XIII temperature and pressure relief valve features a Copper Silicon Alloy body for corrosion resistance. It has MNPTF x FNPTF connections and is used to automatically relieve excess temperature or pressure in industrial systems such as boilers, water heaters, and process piping

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