During the filling, draining, and functioning of a piping system, Air Valve is a hydro-mechanical device that releases trapped air and wastewater gases. This valve contributes to a smoother pipeline flow and more efficient water system operation. A backward pressure is formed by the collection of air, causing an obstruction in the flow of water. Air Valve is now available in a few ranges like ci air valve, and ci special heavy air valve. This is installed at the pipe's summit to remove the accumulated air. This is safe to use.