Normex Valves Pvt Ltd manufactures Non Return Valves with Balls. Normex Valves Pvt Ltd products are employed around the wide range of industries including Sugar, Chemical Process, Paper, Power, Steel, Mining etc. Non Return Valves with Balls is dimensionally compatible with IS 5312. The principle behind the working of this machine is the heart of this valve is a reinforced rubber ball. The unique design of the valve allows free movement of the ball. The ball moves to open position when the pump starts & allows free flow of liquid without any interference. As the pump stops, the ball seats firmly against the metal seat due to its own weight & back pressure of the liquid. This results in dropless sealing.