A check valve is a valve that is mainly used to control the one-way flow of fluid and prevent the fluid from flowing back or reversely. It is usually installed at the outlet of the pipeline. When the fluid flows normally in the pipeline, the check valve is in an open state, allowing the fluid to pass. However, once the fluid begins to flow back or reverse, the check valve will quickly close to prevent the fluid from continuing to flow back or reverse.
When the fluid in the pipeline stops or changes its flow direction, the check valve can automatically close to prevent the fluid from flowing back. This can avoid waste, pollution or damage to equipment caused by backflow.
Fluid backflow may cause damage to pipelines and equipment, especially some sensitive equipment or precision process equipment. The installation of check valves can effectively prevent such damage and protect the integrity and normal operation of pipelines and related equipment.
Check valves can help maintain the system's designed working pressure and ensure that the fluid flows normally in the pipeline. They can prevent peak pressure or pressure fluctuations from flowing into the system in a controllable direction.
