Description
Watts N36 1/2″ Vacuum Relief Valve for Water Service
The Watts N36 Vacuum Relief Valve (SKU 0556030) is engineered to protect water service systems from the damaging effects of negative pressure (vacuum conditions). When system pressure drops below atmospheric levels, this valve opens automatically to admit air and break the vacuum, preventing pipe collapse, back-siphonage, and potential contamination of the water supply. Built to Watts’ exacting quality standards, the N36 is a dependable solution for residential and light commercial water service applications.
Key Features
- 1/2″ connection size for easy integration into standard water service piping
- Automatic vacuum relief operation — opens on negative pressure, closes when system pressure is restored
- Protects against back-siphonage and pipe damage caused by vacuum conditions
- Compact, durable construction designed for long-term water service use
- Manufactured by Watts, a trusted leader in flow control and water quality products
Application
Ideal for use on water heaters, storage tanks, and water distribution piping where vacuum conditions may develop. The N36 vacuum relief valve is a critical safety component that helps maintain system integrity and protect potable water quality.
Specifications
- Brand: Watts
- Model: N36
- SKU: 0556030
- Connection Size: 1/2″
- Valve Type: Vacuum Relief Valve
- Service: Water







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