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Clearly define the purpose of the corresponding valve in the equipment or deviceDetermine the working conditions of the valve: applicable to the medium characteristics, working pressure, working temperature and control method, etc.
The check valve opening and closing parts rely on the flow and force of the medium to open or close automatically to prevent the medium from flowing back. The check valve belongs to the automatic valve category, which is mainly used in the pipeline where the medium flows in one direction, and only allows the medium to flow in one direction to prevent accidents.
Commonly used in industries such as petroleum, chemical industry, power station, metallurgy, natural gas, and urban pipeline networks, especially suitable for occasions with high requirements for sealing and safety.
