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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 &
Category
ASME Section XIII Temperature & Pressure Relief Valves
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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 LF340X-8 150 FS
Type
FNPTF x FNPTF
Body Material
Copper Silicon Alloy

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Watts Products
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
Industrial burner gas safety systems — Watts HF2000 filters with GF-series seal kits maintain clean, regulated gas supply to burner pilot and main flame controls
Commercial heating and boiler installations — Modular filter assemblies support preventive maintenance and component replacement without full system shutdown
Process gas delivery pipelines — DN25 through DN125 filter bodies accommodate varying flow rates and inlet pressures across manufacturing and chemical processes
Gas pressure regulation benches — Multi-stage Watts filter platforms integrate with pressure reducers and safety shutoff valves in test and calibration environments
Equipment retrofit and upgrade projects — Available connection sizes and seal kits enable adaptation of newer Watts components into legacy gas control systems
Planned maintenance and spare-parts inventory — Filter seal kits allow facilities to stock consumables in advance, reducing downtime during scheduled gas system servicing

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 ASME Section XIII temperature and pressure relief valve features a copper silicon alloy body with FNPTF x FNPTF connections. It is designed to protect hot-water storage tanks and heaters by automatically discharging water when temperature or pressure exceeds safe limits
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This ASME Section XIII temperature and pressure relief valve features a copper silicon alloy body with FNPTF x FNPTF connections. It is designed to protect hot-water storage tanks and heaters by automatically discharging water when temperature or pressure exceeds safe limits
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ASME Section XIII temperature and pressure relief valve with copper silicon alloy body and FNPTF x FNPTF connections. Used to protect water heaters and boilers from overpressure and overtemperature conditions by automatically discharging water when safe limits are exceeded. Suitable for commercial and industrial hot water systems
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This ASME Section XIII temperature and pressure relief valve features a copper silicon alloy body with FNPTF x FNPTF connections. It is designed to automatically discharge water when temperature or pressure exceeds safe limits, protecting water heaters and storage tanks in commercial and industrial hot water systems
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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 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
This ASME Section XIII temperature and pressure relief valve features a copper silicon alloy body with FNPTF x FNPTF connections. It is used for overpressure and overtemperature protection in industrial systems such as process heating, boiler, and thermal-fluid applications
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This ASME Section XIII temperature and pressure relief valve features a copper silicon alloy body with FNPTF x FNPTF connections. It is used for overpressure and overtemperature protection in industrial systems such as process heating, boiler, and thermal-fluid applications

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This Watts temperature and pressure relief valve is constructed with a copper silicon alloy body and features FNPTF x FNPTF connections. It is designed for use in heating, boiler, and process systems requiring ASME Section XIII compliance, providing overpressure protection by automatically relieving excess pressure
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This bronze-bodied temperature and pressure relief valve is rated under ASME Section XIII. It features FNPTF x FNPTF connections and is designed to automatically discharge excess fluid when system pressure or temperature exceeds set limits, protecting water heaters and boilers in commercial and industrial applications
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This ASME Section XIII temperature and pressure relief valve features a copper silicon alloy body with FNPTF x FNPTF connections. It is used for overpressure protection in industrial systems such as boilers and pressure vessels
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