Combination Air Valve

Installation Locations:

●At pump discharge outlets.

●At local high points along transmission and distribution pipelines.

●At elevated points immediately downstream of pipeline bends.

●It is recommended to install one air valve every 400–800 meters.

●The recommended air valve size is approximately 1/8 of the main pipeline diameter.

 

Functional Features:

●Rapid air release from the pipeline:
    ▶ Improves the operating efficiency of pumps and pipelines.

●Prevents air locking, water hammer, and unstable flow conditions.

 

Negative Pressure Protection:

●When negative pressure (vacuum) occurs inside the pipeline:
 ▶The air valve automatically admits air.
 ▶This prevents pipeline damage, deformation, or rupture.

 

Operating Principle of the Air Valve: