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A.R.I. Air Valves Provide The Ultimate Protection

Air Valves Improve The Efficiency & Performance of Your Irrigation System

A.R.I. Air Valves serve two primary functions. The first, is the release of accumulated air that comes out of the solution within a pressurised pipeline. This air will form bubbles, which gather at localised high points along the pipeline. This accumulation occurs when the bubble’s buoyancy is greater than the energy to convey it within the liquid. An A.R.I. Air Valve releases this free air.

The second function is to admit air into the irrigation system when the pressure drops below atmospheric pressure. By admitting air, the magnitude of the pressure drop can be reduced and help prevent excessive deflection and/or collapse of the pipeline. It also helps prevent the formation of a full vacuum, in which vapour cavities may form from the fluid vaporising. In this situation, an A.R.I. Air & Vacuum Valve is used. It can also be used to discharge large volumes of air from your system when it is initially filled, and after water column separation.