Working Principle of an One Direction Valve

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Working Principle of an One Directional Valve
One direction valves, also called check valves or non-return valves, are valves used to prevent the flow of fluids in a specific direction. They are typically installed at the outlet of pumps, pipelines or equipment entrances to prevent fluid backflow. The principle of one direction valves is to allow fluid to flow forward and prevent reverse flow (similar to a diode in a circuit). Depending on the valve core structure, one direction valves can be divided into two types: ball valves and cone valves. Ball valves have a simple structure and are easy to manufacture, but have poor directional sealing and are rarely used; cone valves have strict process requirements but have good sealing and are commonly used in engineering.