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Watts 3/4 LF LLL100XL-2 ASME Section IV Temperature & Pressure Relief Valve - ASME Section IV Temperature & Pressure Relief Valves
WattsASME Section IV Temperature & Pressure Relief Valves

Watts 3/4 LF LLL100XL-2 ASME Section IV Temperature & Pressure Relief Valve

The WATTS Temperature and Pressure Relief Valve is an ASME Section IV valve constructed with a brass body. This model, MPN 3/4 LF LLL100XL-2, features MNPT x FNPT connections. It is designed for temperature and…

SKU 3G-OTH-437109

Also listed as: 34LFLLL100XL2 · 3 4 LF LLL100XL 2 · 3-4-LF-LLL100XL-2

Brand
Watts
Item
3/4 LF LLL100XL-2 ASME Section IV Temperature & Pressure Relief Valve
Part Number
3/4 LF LLL100XL-2
Category
ASME Section IV Temperature & Pressure Relief Valves
Available to Order
Also known as:3/4 LF LLL100XL-2Watts
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Technical Specifications

Watts
Manufacturer Part Number
3/4 LF LLL100XL-2
Type
MNPT x FNPT, Brass
Body Material
Brass

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3G Electric (S) Pte. Ltd. — Singapore

Product Description

The WATTS Temperature and Pressure Relief Valve is an ASME Section IV valve constructed with a brass body. This model, MPN 3/4 LF LLL100XL-2, features MNPT x FNPT connections. It is designed for temperature and pressure relief applications in accordance with Section IV of the ASME code.

Frequently Asked Questions

What is the WATTS Temperature and Pressure Relief Valve used for?

The WATTS Temperature and Pressure Relief Valve is used in hot water heating systems and storage tanks to automatically relieve excess temperature or pressure, preventing equipment damage or explosion. It complies with ASME Section IV standards for safety in commercial and residential applications.

What are the specifications of the WATTS 3/4 LF LLL100XL-2 valve?

The WATTS 3/4 LF LLL100XL-2 is an ASME Section IV temperature and pressure relief valve with a brass body. It has MNPT x FNPT connections and is manufactured by WATTS. The valve is designed for reliable overpressure and overtemperature protection in hydronic systems.

Where to buy the WATTS 3/4 LF LLL100XL-2 valve worldwide?

You can source the WATTS 3/4 LF LLL100XL-2 valve worldwide through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time.

How to install a WATTS temperature and pressure relief valve?

Install the WATTS valve in the tank or system tapping, ensuring the sensing element extends into the water. Orient the discharge piping downward, with no shutoff valves, and terminate near a floor drain. Follow local codes and the manufacturer's instructions for safe operation.

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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