Unimac Control Systems supplies Cast Iron Air Release Valve. Unimac Control Systems manufactures a wide range of industrial valves like ball valve, butterfly valve, strainer, Check Valve, Globe Valve, Gate Valve and Plug Valve. The Cast Iron Air Release Valve is used to maintain closed position to prevent the loss of water by the positive seating of a non-corrosive float against a smoothly ground contact surface of the exhaust orifice. The Cast Iron Air Release Valve comes in various dimensions and can operate under working pressure of 10.98 kg/Cm2 and 21.96 kg/Cm2.