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

Watts Temperature and Pressure Relief Valve: MNPT x FNPT

The WATTS Temperature and Pressure Relief Valve is an ASME Section IV temperature and pressure relief valve with a 3/4 in MNPT x 3/4 in FNPT connection size. Its body is constructed from copper silicon alloy, and the…

SKU 3G-OTH-437119

Brand
Watts
Item
Temperature and Pressure Relief Valve: MNPT x FNPT
Category
ASME Section IV Temperature & Pressure Relief Valves
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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
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Watts Products
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 MNPT x 3/4 in FNPT connection size. Its body is constructed from copper silicon alloy, and the manufacturer part number is 3/4 LF100XL 125-210.

Frequently Asked Questions

What is a WATTS temperature and pressure relief valve used for?

A WATTS temperature and pressure relief valve protects water heaters and storage tanks from overpressure and overtemperature. It automatically opens to discharge water when pressure or temperature exceeds safe limits, preventing catastrophic failure. This ASME Section IV valve is suitable for commercial and industrial hot water systems.

What are the specifications of the WATTS 3/4 LF100XL 125-210 valve?

The WATTS 3/4 LF100XL 125-210 is an ASME Section IV temperature and pressure relief valve with a 3/4 in MNPT x 3/4 in FNPT connection size. Its body is made of copper silicon alloy. The manufacturer part number is 3/4 LF100XL 125-210, and it is designed for water heater and tank protection.

Where to buy a WATTS temperature and pressure relief valve worldwide?

3G Electric supplies the WATTS temperature and pressure relief valve worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us for a quote on the 3/4 LF100XL 125-210 or other WATTS valve models.

How to install a WATTS temperature and pressure relief valve?

Install the WATTS valve in the tank's T&P port with the sensing element immersed in the top 6 in of water. Use thread sealant on the MNPT connection, orient the discharge pipe downward, and ensure no valve is placed between the relief valve and the tank. Follow local codes and manufacturer instructions.

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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