Triple function air release valve

High-Velocity Large Orifice Air Release (During Pipeline Filling)

When the pipeline is initially filled with water, a large volume of air accumulates at the top of the valve chamber. The float drops, opening

the large-diameter air outlet to rapidly vent air from the pipeline and eliminate air blockage for smooth pipeline filling. Once the valve body

is full of water, the float rises to close the large orifice and prevent water leakage.

High-Speed Air Inlet under Negative Pressure (Pump Shutdown / Water Discharge)

Sudden pump shutdown or rapid water discharge creates vacuum negative pressure inside the pipeline. The valve automatically opens to admit air, breaking the vacuum and preventing pipeline collapse or deformation caused by negative pressure. It also protects the pipeline

from water hammer damage due to water column separation.

Micro Air Release (Under Normal Pressurized Operation)

During normal water conveyance, dissolved gas in water continuously precipitates and forms small bubbles that collect at high points.

The built-in micro air release mechanism intermittently discharges these tiny bubbles, continuously removing air pockets inside

the pipeline. This reduces noise and vibration, improves water delivery efficiency, and releases air without water leakage.