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Watts Vacuum Relief Valve: Water Heaters/Tanks, Brass, 1/2 in Inlet Connection Size - Vacuum Release Valves
WattsVacuum Release Valves

Watts Vacuum Relief Valve: Water Heaters/Tanks, Brass, 1/2 in Inlet Connection Size

The WATTS Vacuum Relief Valve (MPN 1/2 LF N36) is a brass vacuum release valve for water heaters and tanks, featuring a 1/2-inch MNPT inlet connection. 3G Electric interprets this demand and sources the genuine WATTS…

SKU 3G-OTH-431014

Brand
Watts
Item
Vacuum Relief Valve: Water Heaters/Tanks, Brass, 1/2 in Inlet Connection Size
Category
Vacuum Release Valves
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Technical Specifications

Watts
Manufacturer Part Number
1/2 LF N36
Type
Brass, MNPT, MNPT
Inlet Connection Size
1/2 in
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Watts Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The WATTS Vacuum Relief Valve (MPN 1/2 LF N36) is a brass vacuum release valve for water heaters and tanks, featuring a 1/2-inch MNPT inlet connection. 3G Electric interprets this demand and sources the genuine WATTS part across 14 industrial departments, with specialist depth in combustion, pumps and controls as an authorised distributor.

Frequently Asked Questions

What is the Watts 1/2 LF N36 vacuum relief valve used for?

The Watts 1/2 LF N36 vacuum relief valve is used on water heaters and tanks to prevent vacuum conditions that could cause tank collapse or implosion. It automatically admits air when internal pressure drops below atmospheric pressure, protecting the vessel and system integrity.

What are the specifications of the Watts 1/2 LF N36 vacuum relief valve?

The Watts 1/2 LF N36 vacuum relief valve has a brass body with 1/2 inch MNPT inlet and outlet connections. It is designed for water heaters and tanks. The manufacturer part number is 1/2 LF N36, and it is a vacuum release valve type from the Watts brand.

Where to buy the Watts 1/2 LF N36 vacuum relief valve worldwide?

You can source the Watts 1/2 LF N36 vacuum relief valve through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time on this part.

How to install the Watts 1/2 LF N36 vacuum relief valve?

Install the Watts 1/2 LF N36 vacuum relief valve on the top or side of the water heater or tank using the 1/2 inch MNPT connections. Ensure the valve is oriented vertically with the vent open to atmosphere. Apply thread sealant to the male threads and tighten to manufacturer torque specifications. Test for proper operation after 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 vacuum release valves. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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