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Watts Temperature and Pressure Relief Valve: Section IV ASME Section, MNPT x FNPT - ASME Section IV Temperature & Pressure Relief Valves
WattsASME Section IV Temperature & Pressure Relief Valves

Watts Temperature and Pressure Relief Valve: Section IV ASME Section, MNPT x FNPT

The WATTS L100XL-3 is an ASME Section IV temperature and pressure relief valve with a brass body. This valve is designed for Section IV applications and features MNPT x FNPT connections.

SKU 3G-OTH-437140

Brand
Watts
Item
Temperature and Pressure Relief Valve: Section IV ASME Section, MNPT x FNPT
Category
ASME Section IV Temperature & Pressure Relief Valves
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Technical Specifications

Watts
Manufacturer Part Number
L100XL-3
Type
MNPT x FNPT, Brass
Body Material
Brass
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Watts Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The WATTS L100XL-3 is an ASME Section IV temperature and pressure relief valve with a brass body. This valve is designed for Section IV applications and features MNPT x FNPT connections.

Frequently Asked Questions

What is the WATTS L100XL-3 temperature and pressure relief valve used for?

The WATTS L100XL-3 is an ASME Section IV temperature and pressure relief valve designed to protect water heaters and storage tanks from excessive temperature or pressure. It automatically opens to relieve excess pressure or temperature, preventing catastrophic failure in Section IV applications.

What are the specifications of the WATTS L100XL-3 valve?

The WATTS L100XL-3 features a brass body and is certified to ASME Section IV standards. It has MNPT x FNPT connections and is manufactured by WATTS under part number L100XL-3. This valve is suitable for Section IV applications requiring temperature and pressure relief.

Where to buy the WATTS L100XL-3 valve worldwide?

You can source the WATTS L100XL-3 valve through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact 3G Electric for pricing and lead time on this ASME Section IV relief valve.

How to install the WATTS L100XL-3 temperature and pressure relief valve?

Install the WATTS L100XL-3 valve in the designated opening of the water heater or tank, ensuring the sensing element extends into the tank. Use thread sealant on the MNPT connection and orient the discharge piping downward to avoid scalding. Follow local codes and ASME guidelines for safe installation.

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 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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