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Watts 1/2 LF N36 Vacuum Release Valve, Brass, 1/2 in MNPT - Vacuum Release Valves
WattsVacuum Release Valves

Watts 1/2 LF N36 Vacuum Release Valve, Brass, 1/2 in MNPT

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

Also listed as: 12LFN36 · 1 2 LF N36 · 1-2-LF-N36

Brand
Watts
Item
1/2 LF N36 Vacuum Release Valve, Brass, 1/2 in MNPT
Part Number
1/2 LF N36
Category
Vacuum Release Valves
Available to Order
Also known as:1/2 LF N36Watts
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Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
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Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

Watts
Manufacturer Part Number
1/2 LF N36
Type
Brass, MNPT, MNPT
Inlet Connection Size
1/2 in

Technical Documents

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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
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 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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