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Watts 3/4 LF L100XL 150-210 ASME Section IV Temperature & - ASME Section IV Temperature & Pressure Relief Valves
WattsASME Section IV Temperature & Pressure Relief Valves

Watts 3/4 LF L100XL 150-210 ASME Section IV Temperature &

The WATTS Temperature and Pressure Relief Valve is an ASME Section IV temperature and pressure relief valve with a 3/4 in x 3/4 in MNPT x FNPT connection. Its body is constructed from Copper Silicon Alloy, as…

SKU 3G-OTH-437130

Also listed as: 34LFL100XL150210 · 3 4 LF L100XL 150 210 · 3-4-LF-L100XL-150-210

Brand
Watts
Item
3/4 LF L100XL 150-210 ASME Section IV Temperature &
Part Number
3/4 LF L100XL 150-210
Category
ASME Section IV Temperature & Pressure Relief Valves
Available to Order
Also known as:3/4 LF L100XL 150-210Watts
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Technical Specifications

Watts
Manufacturer Part Number
3/4 LF L100XL 150-210
Body Material
Copper Silicon Alloy
Connection Size
3/4 in x 3/4 in

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3G Electric (S) Pte. Ltd. — Singapore

Product Description

The WATTS Temperature and Pressure Relief Valve is an ASME Section IV temperature and pressure relief valve with a 3/4 in x 3/4 in MNPT x FNPT connection. Its body is constructed from Copper Silicon Alloy, as specified by the manufacturer part number 3/4 LF L100XL 150-210.

Frequently Asked Questions

What is the WATTS 3/4 LF L100XL 150-210 temperature and pressure relief valve used for?

This WATTS valve is used as a primary safety device on ASME Section IV hot water heating boilers and storage tanks. It automatically relieves excess temperature or pressure to prevent catastrophic failure, protecting equipment and personnel in commercial and industrial hydronic systems.

What are the specifications of the WATTS 3/4 LF L100XL 150-210 valve?

This WATTS valve has a 3/4 in x 3/4 in MNPT x FNPT connection size and a body made of Copper Silicon Alloy. It is an ASME Section IV temperature and pressure relief valve, identified by manufacturer part number 3/4 LF L100XL 150-210. It is designed for hot water heating applications.

Where to buy the WATTS 3/4 LF L100XL 150-210 valve worldwide?

3G Electric supplies the WATTS 3/4 LF L100XL 150-210 valve worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and a competitive quote for your region.

How to install a WATTS temperature and pressure relief valve?

Install the WATTS valve directly into the boiler or tank tapping with the sensing element immersed in the water. Ensure the discharge piping is directed to a safe drain and is not blocked. Follow local codes and the manufacturer's instructions for proper orientation and support.

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
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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.

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