Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

3G Electric
RFQ CartGet a QuoteSign inSign up
Watts Temperature and Pressure Relief Valve: Section XIII ASME Section - ASME Section XIII Temperature & Pressure Relief Valves
WattsASME Section XIII Temperature & Pressure Relief Valves

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. It features FNPTF x FNPTF connections and is identified by manufacturer part number 1 LFN240X-6-125/210 FS.

SKU 3G-OTH-430659

Brand
Watts
Item
Temperature and Pressure Relief Valve: Section XIII ASME Section
Category
ASME Section XIII Temperature & Pressure Relief Valves
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Technical Specifications

Watts
Manufacturer Part Number
1 LFN240X-6-125/210 FS
Type
FNPTF x FNPTF
Body Material
Copper Silicon Alloy
View Full Spec Sheet

Technical Documents

No technical documents available for this product.
Request documentation →
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

Watts Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The WATTS Temperature and Pressure Relief Valve is an ASME Section XIII valve with a Copper Silicon Alloy body. It features FNPTF x FNPTF connections and is identified by manufacturer part number 1 LFN240X-6-125/210 FS.

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 relieve pressure or temperature when safe limits are exceeded, 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 LFN240X-6-125/210 FS valve?

This WATTS valve has a Copper Silicon Alloy body and FNPTF x FNPTF connections. It is an ASME Section XIII temperature and pressure relief valve with manufacturer part number 1 LFN240X-6-125/210 FS. The valve is designed for use in hot water systems requiring reliable overpressure and overtemperature protection.

Where to buy the WATTS 1 LFN240X-6-125/210 FS valve worldwide?

You can source the WATTS 1 LFN240X-6-125/210 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 opening of the water heater or tank, ensuring the sensing element extends into the tank. Use thread sealant on the FNPTF connections and tighten to manufacturer torque specs. The discharge pipe must be directed downward and terminate near a drain. Always follow local plumbing codes and the valve's installation manual.

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.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

Similar products

Matched by specification & description
WATTS Temperature and Pressure Relief Valve: Section XIII ASME Section, FNPTF x FNPTF (MPN 1 LF140X-6-150/210 FS). Key specifications — Brand: WATTS; Body Material: Copper Silicon Alloy.
Watts
WATTS Temperature and Pressure Relief Valve: Section XIII ASME Section, FNPTF x FNPTF (MPN 1 LF140X-6-150/210 FS). Key specifications — Brand: WATTS; Body Material: Copper Silicon Alloy.
WATTS Temperature and Pressure Relief Valve: Section XIII ASME Section, MNPTF x FNPTF (MPN 3/4 LF40L-3-125/210 FS). Key specifications — Brand: WATTS; Body Material: Copper Silicon Alloy.
Watts
WATTS Temperature and Pressure Relief Valve: Section XIII ASME Section, MNPTF x FNPTF (MPN 3/4 LF40L-3-125/210 FS). Key specifications — Brand: WATTS; Body Material: Copper Silicon Alloy.
WATTS Temperature and Pressure Relief Valve: Section XIII ASME Section, MNPTF x FNPTF (MPN 3/4 LF40XL-5-125/210FS). Key specifications — Brand: WATTS; Body Material: Copper Silicon Alloy.
Watts
WATTS Temperature and Pressure Relief Valve: Section XIII ASME Section, MNPTF x FNPTF (MPN 3/4 LF40XL-5-125/210FS). Key specifications — Brand: WATTS; Body Material: Copper Silicon Alloy.
WATTS Temperature and Pressure Relief Valve: Section XIII ASME Section, FNPTF x FNPTF (MPN 1-1/2 LF340-3-150/210FS). Key specifications — Brand: WATTS; Body Material: Copper Silicon Alloy.
Watts
WATTS Temperature and Pressure Relief Valve: Section XIII ASME Section, FNPTF x FNPTF (MPN 1-1/2 LF340-3-150/210FS). Key specifications — Brand: WATTS; Body Material: Copper Silicon Alloy.
WATTS Temperature and Pressure Relief Valve: Section XIII ASME Section, FNPTF x FNPTF (MPN 1 LFN240X-6-150/210 FS). Key specifications — Brand: WATTS; Body Material: Copper Silicon Alloy.
Watts
WATTS Temperature and Pressure Relief Valve: Section XIII ASME Section, FNPTF x FNPTF (MPN 1 LFN240X-6-150/210 FS). Key specifications — Brand: WATTS; Body Material: Copper Silicon Alloy.
WATTS Temperature and Pressure Relief Valve: Section XIII ASME Section, FNPTF x FNPTF (MPN 1 LFN240X-9-150/210 FS). Key specifications — Brand: WATTS; Body Material: Copper Silicon Alloy.
Watts
WATTS Temperature and Pressure Relief Valve: Section XIII ASME Section, FNPTF x FNPTF (MPN 1 LFN240X-9-150/210 FS). Key specifications — Brand: WATTS; Body Material: Copper Silicon Alloy.

More from Watts

View all Watts parts →
WATTS Pressure Safety Relief Valve: Section XIII ASME Section, FNPTF x FNPTF, Copper Silicon Alloy (MPN 0121602). Key specifications — Brand: WATTS; Body Material: Copper Silicon Alloy.
Watts
WATTS Pressure Safety Relief Valve: Section XIII ASME Section, FNPTF x FNPTF, Copper Silicon Alloy (MPN 0121602). Key specifications — Brand: WATTS; Body Material: Copper Silicon Alloy.
WATTS Temperature and Pressure Relief Valve: Section XIII ASME Section, FNPTF x FNPTF, Bronze (MPN 1 N240X-6-125/210 FS). Key specifications — Brand: WATTS; Body Material: Bronze.
Watts
WATTS Temperature and Pressure Relief Valve: Section XIII ASME Section, FNPTF x FNPTF, Bronze (MPN 1 N240X-6-125/210 FS). Key specifications — Brand: WATTS; Body Material: Bronze.
WATTS Relief Valve: Section XIII ASME Section, FNPTF x FNPTF, 1 in x 1 in Connection Size (MPN F121508). Key specifications — Brand: WATTS; Body Material: Copper Silicon Alloy.
Watts
WATTS Relief Valve: Section XIII ASME Section, FNPTF x FNPTF, 1 in x 1 in Connection Size (MPN F121508). Key specifications — Brand: WATTS; Body Material: Copper Silicon Alloy.
WATTS Temperature and Pressure Relief Valve: Section XIII ASME Section, FNPTF x FNPTF, Bronze (MPN 1 140X-6-150/210 FS). Key specifications — Brand: WATTS; Body Material: Bronze.
Watts
WATTS Temperature and Pressure Relief Valve: Section XIII ASME Section, FNPTF x FNPTF, Bronze (MPN 1 140X-6-150/210 FS). Key specifications — Brand: WATTS; Body Material: Bronze.
WATTS Pressure Safety Relief Valve: Section XIII ASME Section, FNPTF x FNPTF, Copper Silicon Alloy (MPN 0121604). Key specifications — Brand: WATTS; Body Material: Copper Silicon Alloy.
Watts
WATTS Pressure Safety Relief Valve: Section XIII ASME Section, FNPTF x FNPTF, Copper Silicon Alloy (MPN 0121604). Key specifications — Brand: WATTS; Body Material: Copper Silicon Alloy.
WATTS Temperature and Pressure Relief Valve: Section XIII ASME Section, MNPTF x FNPTF, Bronze (MPN 3/4 40XL-5-150/210 FS). Key specifications — Brand: WATTS; Body Material: Bronze.
Watts
WATTS Temperature and Pressure Relief Valve: Section XIII ASME Section, MNPTF x FNPTF, Bronze (MPN 3/4 40XL-5-150/210 FS). Key specifications — Brand: WATTS; Body Material: Bronze.
WATTS Temperature and Pressure Relief Valve: Section XIII ASME Section, MNPTF x FNPTF (MPN 1 LF40XL-4-125/210 FS). Key specifications — Brand: WATTS; Body Material: Copper Silicon Alloy.
Watts
WATTS Temperature and Pressure Relief Valve: Section XIII ASME Section, MNPTF x FNPTF (MPN 1 LF40XL-4-125/210 FS). Key specifications — Brand: WATTS; Body Material: Copper Silicon Alloy.
WATTS Temperature and Pressure Relief Valve: Section XIII ASME Section, FNPT x FNPT, Bronze (MPN F278030). Key specifications — Brand: WATTS; Body Material: Bronze.
Watts
WATTS Temperature and Pressure Relief Valve: Section XIII ASME Section, FNPT x FNPT, Bronze (MPN F278030). Key specifications — Brand: WATTS; Body Material: Bronze.