A swing check valve, also known as a one-way valve or check valve, is used to prevent the medium in the pipeline from flowing back. The valve that the opening and closing parts automatically open or close by media flow and force to prevent media backflow is called a check valve.

The free swing design of the swing check valve enables the valve to be closed by the weight of the valve disc to prevent the turbine from being damaged due to reverse flow.

The swing check valve is applicable to the pipeline with a working temperature of - 29 ℃ to 425 ℃ and the medium of water, steam, oil, etc. It is used as a single hoist to prevent the reverse flow of the medium on the pipeline.