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

Watts Temperature and Pressure Relief Valve: Section XIII ASME Section, MNPTF x FNPTF - ASME Section XIII Temperature & Pressure Relief Valves
WattsASME Section XIII Temperature & Pressure Relief Valves

Watts Temperature and Pressure Relief Valve: Section XIII ASME Section, MNPTF x FNPTF

The WATTS Temperature and Pressure Relief Valve is an ASME Section XIII valve, model 1 40XL-4-125/210 FS, with a bronze body. It features MNPTF x FNPTF connections.

SKU 3G-OTH-430673

Brand
Watts
Item
Temperature and Pressure Relief Valve: Section XIII ASME Section, MNPTF x FNPTF
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 40XL-4-125/210 FS
Type
MNPTF x FNPTF, Bronze
Body Material
Bronze
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, model 1 40XL-4-125/210 FS, with a bronze body. It features MNPTF x FNPTF connections.

Frequently Asked Questions

What is the WATTS 1 40XL-4-125/210 FS temperature and pressure relief valve used for?

This WATTS ASME Section XIII valve protects water heaters and storage tanks from excessive temperature and pressure. It automatically opens to relieve pressure or temperature when set limits are exceeded, preventing equipment damage. The bronze body resists corrosion in potable water and hydronic systems.

What are the specifications of the WATTS 1 40XL-4-125/210 FS valve?

This WATTS valve is an ASME Section XIII temperature and pressure relief valve with a bronze body. It has MNPTF x FNPTF connections and the manufacturer part number is 1 40XL-4-125/210 FS. The bronze construction provides durability in high-temperature water applications.

Where to buy the WATTS 1 40XL-4-125/210 FS valve worldwide?

3G Electric supplies the WATTS 1 40XL-4-125/210 FS valve worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on this bronze 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 MNPTF x FNPTF connections. The discharge pipe must be directed downward and terminate near a floor drain. Never cap or plug the outlet.

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, MNPT x FNPT, Bronze (MPN 3/4 40XL-8-150/210 FS). Key specifications — Brand: WATTS; Body Material: Bronze.
Watts
WATTS Temperature and Pressure Relief Valve: Section XIII ASME Section, MNPT x FNPT, Bronze (MPN 3/4 40XL-8-150/210 FS). Key specifications — Brand: WATTS; Body Material: Bronze.
WATTS Temperature and Pressure Relief Valve: Section XIII ASME Section, MNPT x FNPT, Bronze (MPN 3/4 LF40XL-5-150/210FS). Key specifications — Brand: WATTS; Body Material: Bronze.
Watts
WATTS Temperature and Pressure Relief Valve: Section XIII ASME Section, MNPT x FNPT, Bronze (MPN 3/4 LF40XL-5-150/210FS). Key specifications — Brand: WATTS; Body Material: Bronze.
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, 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, 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, FNPTF x FNPTF (MPN 1 LFN240X-6-125/210 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-6-125/210 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.