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

3G Electric
WATTS 3/4 LF100XL 125-210 ASME Section IV Temperature & Pressure Relief Valve - ASME Section IV Temperature & Pressure Relief Valves
WattsASME Section IV Temperature & Pressure Relief Valves

WATTS 3/4 LF100XL 125-210 ASME Section IV Temperature & Pressure Relief Valve

<p>The Watts 3/4 LF100XL 125-210 is an ASME Section IV temperature and pressure relief valve, engineered for reliable overpressure protection in hot water heating systems. Constructed with a copper silicon alloy…

SKU 3G-OTH-437119

Also listed as: 34LF100XL125210 · 3 4 LF100XL 125 210 · 3-4-LF100XL-125-210

Brand
Watts
Item
3/4 LF100XL 125-210 ASME Section IV Temperature & Pressure Relief Valve
Part Number
3/4 LF100XL 125-210
Category
ASME Section IV Temperature & Pressure Relief Valves
Available to Order
Also known as:3/4 LF100XL 125-210Watts
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 — 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
3/4 LF100XL 125-210
Body Material
Copper Silicon Alloy
Connection Size
3/4 in x 3/4 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

<p>The Watts 3/4 LF100XL 125-210 is an ASME Section IV temperature and pressure relief valve, engineered for reliable overpressure protection in hot water heating systems. Constructed with a copper silicon alloy body, this valve offers durability and corrosion resistance, making it suitable for demanding industrial applications. With a 3/4 inch x 3/4 inch connection size, it integrates seamlessly into standard piping systems.</p><p>Procurement buyers in Singapore can request a quote in SGD, and GST is handled for local orders. Enjoy fast delivery across Singapore and Southeast Asia, ensuring your operations stay on schedule.</p>

Frequently Asked Questions

What is the connection size and body material of the Watts 3/4 LF100XL 125-210?

The connection size is 3/4 inch x 3/4 inch, and the body material is copper silicon alloy.

Can I get a quote in SGD and what about GST for Singapore orders?

Yes, quotes are available in SGD upon request. For Singapore buyers, GST is handled, and delivery is fast within Singapore and Southeast Asia.

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 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

More from Watts

View all Watts parts
Brass-bodied temperature and pressure relief valve with male NPT x female NPT connections. Complies with ASME Section IV standards. Used to automatically relieve excess temperature or pressure in hot-water systems, protecting equipment from unsafe conditions
Watts
Brass-bodied temperature and pressure relief valve with male NPT x female NPT connections. Complies with ASME Section IV standards. Used to automatically relieve excess temperature or pressure in hot-water systems, protecting equipment from unsafe conditions

Customer reviews

No reviews yet — be the first

Questions & answers

No questions yet — ask us the first