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

3G Electric
Watts S1450F ASME Section IV Combination Pressure Relief & Regulator Valve - ASME Section IV Combination Pressure Relief & Regulator Valves
WattsASME Section IV Combination Pressure Relief & Regulator Valves

Watts S1450F ASME Section IV Combination Pressure Relief & Regulator Valve

The WATTS S1450F is an ASME Section IV combination pressure relief and regulator valve with an iron body. It features a factory set pressure of 30 psi and is configured with union solder x FNPT connections.

SKU 3G-OTH-429718

Brand
Watts
Item
S1450F ASME Section IV Combination Pressure Relief & Regulator Valve
Part Number
S1450F
Category
ASME Section IV Combination Pressure Relief & Regulator Valves
Available to Order
Also known as:S1450FWatts
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
S1450F
Type
Union Solder x FNPT
Body Material
Iron
Factory Set Pressure
30 psi

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 S1450F is an ASME Section IV combination pressure relief and regulator valve with an iron body. It features a factory set pressure of 30 psi and is configured with union solder x FNPT connections.

Frequently Asked Questions

What is the WATTS S1450F combination fill and relief valve used for?

The WATTS S1450F is used in ASME Section IV hot water heating systems to automatically fill the system with water and relieve excess pressure. It is commonly installed on boilers and hydronic heating loops to maintain safe operating pressure.

What are the specifications of the WATTS S1450F valve?

The WATTS S1450F has an iron body, a factory set pressure of 30 psi, and union solder x FNPT connections. It is an ASME Section IV combination pressure relief and regulator valve. The manufacturer part number is S1450F.

Where to buy the WATTS S1450F combination fill and relief valve worldwide?

3G Electric supplies the WATTS S1450F combination fill and relief valve to customers worldwide. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time.

How to install the WATTS S1450F combination fill and relief valve?

Install the WATTS S1450F in the boiler supply line per ASME Section IV code. Ensure the union solder connection is properly soldered and the FNPT connection is sealed with thread tape. Always install a shutoff valve upstream and test for leaks after installation.

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
Not sure this is the right part? Photo-identify it

Watts Products

3G Electric supplies Watts asme section iv combination pressure relief & regulator 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

More from Watts

View all Watts parts

Customer reviews

No reviews yet — be the first

Questions & answers

No questions yet — ask us the first