What is a check valve?

What is a check valve?
  • Dec 11, 2024
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A check valve refers to a valve that automatically opens and closes the valve flap by means of the flow of the medium itself, and is used to prevent the medium from flowing backward.

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★ Lifting type: good sealing performance, simple structure, and large flow resistance.
★ Swing type: poor sealing performance, complex structure, small flow resistance, mostly used in pipelines with a large caliber.
★ The main use: A check valve is suitable for pipelines that have the requirement to prevent media backflow. Check valves are generally suitable for cleaning media and should not be used for media containing solid particles and with high viscosity.

Next: Metal Seated Ball Valves and Soft Seated Ball Valves

Previous: Side Entry, Top Entry, and Welded Body Ball Valves

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About the author
Kevin Shi
Kevin is a technical expert with over 20 years of experience in the valve industry, specializing in the selection, design, and application of industrial valves, including but not limited to gate, globe, and ball valves. He excels at providing tailored technical solutions based on operational requirements and has led multiple valve system optimization projects in the energy and chemical sectors. Kevin stays updated with industry trends and technological advancements, is well-versed in industry standards, and offers full technical support from consulting to troubleshooting.