Overview
The Brass Air Release Valve is designed to automatically discharge accumulated air from water supply, HVAC, heating, and other closed-loop liquid piping systems.
Air trapped inside a pipeline can reduce flow capacity, cause noise, increase energy consumption, and interfere with normal system operation. The internal float mechanism automatically opens the air outlet when air accumulates and closes it when the liquid reaches the specified level, helping maintain stable and efficient system performance.
Product Advantages
● Helps remove trapped air from pipelines
● Supports stable flow and circulation
● Helps reduce pipeline noise and air blockage
● Automatic operation without external power
● Compact construction for restricted spaces
● Suitable for water and HVAC systems
● Simple inspection and maintenance
Technical Specifications
Size Range
● NPS 1/2\”–2\” (DN15–DN50)
Pressure Rating
● PN10 / PN16
Pressure rating, discharge capacity, and connection size should be selected according to system pressure, pipeline volume, and required air-release performance.
Standards
● Design and Performance: EN 1074-4 for applicable water-supply air-valve configurations
● General Water-Supply Valve Requirements: EN 1074-1
● Inspection and Testing: EN 12266-1, where applicable
● Thread Connection: ISO 228-1
● Optional Thread Standards: ISO 7-1 or ASME B1.20.1 NPT upon request
Other connection sizes, pressure ratings, float materials, and technical requirements can be discussed with the factory.
Industry Applications
● Building water supply
● HVAC circulation systems
● Heating systems
● Chilled-water systems
● Water treatment systems
● Pumping systems
● General closed-loop liquid pipelines
The valve should normally be installed vertically at pipeline high points, manifolds, equipment outlets, or other locations where air may accumulate. It should not be confused with a safety relief valve or pressure-reducing valve.
Tianjin Dingliu valve Industry Co., Ltd. is a high-tech enterprise specializing in the valve and automation industry.
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