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[Chemical Knowledge]：Master the principle of check valve to avoid the problem of reverse flow

Read： 701 Time：20months ago Source：Transform the World with Simplicity

Check valve is a valve used to achieve one-way flow, mainly used in the pipeline system of gas, liquid or steam flow control. Responsible for ensuring unidirectional flow in the system and avoiding hazards caused by countercurrent of the medium. Check valves are suitable for all types of pipelines, including hydraulic engineering, industrial processes, buildings and fire protection systems. The principle of

check valve is based on the theoretical basis of fluid mechanics, materials science and mechanics. Under a certain flow, the valve opening, the medium in the pipeline through the valve into the downstream pipeline. When the medium in the pipeline reverse flow, the valve will automatically close to prevent the medium reverse flow. Therefore, the check valve is an indispensable part of the pipeline system to ensure the normal operation and safety of the system. The structure of

check valve can be divided into many types, including lift, rotary and gate type. Lift check valve through gravity or spring and other devices to achieve valve opening and closing. Rotary valve through the disc rotation to achieve valve control. The gate check valve is controlled by the gap between the wide gate and the pipe. The choice of

check valve should be based on specific usage scenarios, including factors such as medium type, flow and pressure. During use, regular inspection and maintenance of the check valve is required to ensure its normal operation and long life.

In the construction and maintenance of piping systems, the role of check valves cannot be ignored. Understanding its working principle and selecting the appropriate type, maintenance, etc., can improve the service life of the valve and the safety of the system. Therefore, it is suggested that users should know more about the relevant knowledge when purchasing and using the check valve, so as to make better use of the check valve, solve the problem of countercurrent, and ensure the normal operation and safety of the pipeline system.

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