We ship worldwide — Singapore, Australia, Malaysia, Indonesia, Philippines, India, Middle East & more

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

Watts Relief Valve: Section XIII ASME Section, FNPTF x FNPTF

The WATTS Relief Valve is an ASME Section XIII Temperature & Pressure Relief Valve with a copper silicon alloy body. It features 1 in x 1 in FNPTF connections and is identified by manufacturer part number F121457.

SKU 3G-OTH-430651

Also listed as: F 121457 · F-121457

Brand
Watts
Item
Relief Valve: Section XIII ASME Section, FNPTF x FNPTF
Category
ASME Section XIII Temperature & Pressure Relief Valves
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
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

Local availability & support

Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

Watts
Manufacturer Part Number
F121457
Type
FNPTF x FNPTF
Body Material
Copper Silicon Alloy
Connection Size
1 in x 1 in

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 Relief Valve is an ASME Section XIII Temperature & Pressure Relief Valve with a copper silicon alloy body. It features 1 in x 1 in FNPTF connections and is identified by manufacturer part number F121457.

Frequently Asked Questions

What is the WATTS Relief Valve F121457 used for?

The WATTS Relief Valve F121457 is an ASME Section XIII temperature and pressure relief valve used in industrial water heating and storage systems. It protects against excessive temperature or pressure by automatically opening at rated conditions, preventing catastrophic failures in boilers, tanks, and pressure vessels.

What are the specifications of the WATTS Relief Valve F121457?

The WATTS Relief Valve F121457 has a copper silicon alloy body with 1 in x 1 in FNPTF connections. It is an ASME Section XIII temperature and pressure relief valve. The manufacturer part number is F121457, and the brand is WATTS. It is designed for industrial pressure and thermal protection applications.

Where to buy the WATTS Relief Valve F121457 worldwide?

You can source the WATTS Relief Valve F121457 through 3G Electric, a global industrial equipment distributor established in 1990. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time on this WATTS valve.

How to install the WATTS Relief Valve F121457?

Install the WATTS Relief Valve F121457 in the designated tapping on the vessel or piping, ensuring the FNPTF connections are properly sealed with thread sealant. Orient the valve vertically or as per manufacturer guidelines. Always follow local codes and ensure the discharge piping is routed safely to prevent injury from hot water or steam.

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

Compatible alternatives & equivalents

Cross-referenced by specification & description
WATTS Temperature and Pressure Relief Valve: Section XIII ASME Section, MNPTF x FNPTF (MPN F121592)
Watts
WATTS Temperature and Pressure Relief Valve: Section XIII ASME Section, MNPTF x FNPTF (MPN F121592)
WATTS Temperature and Pressure Relief Valve: Section XIII ASME Section, FNPTF x FNPTF (MPN F121605)
Watts
WATTS Temperature and Pressure Relief Valve: Section XIII ASME Section, FNPTF x FNPTF (MPN F121605)
WATTS Pressure Relief Valve: Section XIII ASME Section, FNPTF x FNPTF, 1 in x 1 in Connection Size (MPN F121456)
Watts
WATTS Pressure Relief Valve: Section XIII ASME Section, FNPTF x FNPTF, 1 in x 1 in Connection Size (MPN F121456)
WATTS Temperature and Pressure Relief Valve: Section XIII ASME Section, FNPTF x FNPTF (MPN 1-1/2 LF340X-8 150 FS)
Watts
WATTS Temperature and Pressure Relief Valve: Section XIII ASME Section, FNPTF x FNPTF (MPN 1-1/2 LF340X-8 150 FS)
WATTS Temperature and Pressure Relief Valve: Section XIII ASME Section, FNPTF x FNPTF (MPN 1-1/2 LF340-3-150/210FS)
Watts
WATTS Temperature and Pressure Relief Valve: Section XIII ASME Section, FNPTF x FNPTF (MPN 1-1/2 LF340-3-150/210FS)
WATTS Temperature and Pressure Relief Valve: Section XIII ASME Section, MNPTF x FNPTF (MPN 1-1/4 LFN241X-8 150 FS)
Watts
WATTS Temperature and Pressure Relief Valve: Section XIII ASME Section, MNPTF x FNPTF (MPN 1-1/4 LFN241X-8 150 FS)

More from Watts

View all Watts parts
WATTS Pressure Safety Relief Valve: Section XIII ASME Section, FNPTF x FNPTF, Copper Silicon Alloy (MPN 0121604)
Watts
WATTS Pressure Safety Relief Valve: Section XIII ASME Section, FNPTF x FNPTF, Copper Silicon Alloy (MPN 0121604)
WATTS Temperature and Pressure Relief Valve: Section XIII ASME Section, FNPTF x FNPTF (MPN 1 LF140S-3-150/210 FS)
Watts
WATTS Temperature and Pressure Relief Valve: Section XIII ASME Section, FNPTF x FNPTF (MPN 1 LF140S-3-150/210 FS)
WATTS Temperature and Pressure Relief Valve: Section XIII ASME Section, FNPTF x FNPTF (MPN 1 LF140X-9-150/210 FS)
Watts
WATTS Temperature and Pressure Relief Valve: Section XIII ASME Section, FNPTF x FNPTF (MPN 1 LF140X-9-150/210 FS)
WATTS Temperature and Pressure Relief Valve: Section XIII ASME Section, MNPTF x FNPTF (MPN 2 LF342X-8-150/210 FS)
Watts
WATTS Temperature and Pressure Relief Valve: Section XIII ASME Section, MNPTF x FNPTF (MPN 2 LF342X-8-150/210 FS)
WATTS Pressure Safety Relief Valve: Section XIII ASME Section, FNPTF x FNPTF, Copper Silicon Alloy (MPN 0121602)
Watts
WATTS Pressure Safety Relief Valve: Section XIII ASME Section, FNPTF x FNPTF, Copper Silicon Alloy (MPN 0121602)
WATTS Temperature and Pressure Relief Valve: Section XIII ASME Section, FNPTF x FNPTF, Bronze (MPN 1 N240X-6-125/210 FS)
Watts
WATTS Temperature and Pressure Relief Valve: Section XIII ASME Section, FNPTF x FNPTF, Bronze (MPN 1 N240X-6-125/210 FS)
WATTS Relief Valve: Section XIII ASME Section, FNPTF x FNPTF, 1 in x 1 in Connection Size (MPN F121508)
Watts
WATTS Relief Valve: Section XIII ASME Section, FNPTF x FNPTF, 1 in x 1 in Connection Size (MPN F121508)
WATTS Temperature and Pressure Relief Valve: Section XIII ASME Section, FNPTF x FNPTF, Bronze (MPN 1 140X-6-150/210 FS)
Watts
WATTS Temperature and Pressure Relief Valve: Section XIII ASME Section, FNPTF x FNPTF, Bronze (MPN 1 140X-6-150/210 FS)