A reversing valve is a device used to control the flow of fluid. It is usually composed of a valve body, a spool, a seat and a operating device. The main function of the reversing valve is to switch the flow of fluid from one pipe to another according to the control signal. It can realize the forward flow, reverse flow and stop flow of fluid. The operation mode of the reversing valve can be manual, electric, hydraulic or pneumatic. Reversing valves are widely used in various industrial fields, such as petrochemical, metallurgy, electric power, Marine, paper and so on. It can be used to control the flow of various media such as liquids, gases and vapors. The advantages of the reversing valve include simple structure, reliable operation, good sealing and long service life. It can quickly change the flow direction of fluid to meet the needs of fluid control in industrial pr…