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Check Valve

Last updated: October 25, 2018

What Does Check Valve Mean?

A check valve is a flow-monitoring device typically used in pipeline systems to allow a fluid to flow in only one direction and prevent backflow or backwash. They can be used for a variety of fluid applications such as liquids, gases, condensate or slurries.


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Corrosionpedia Explains Check Valve

Check valves operate based on flow sensitivity to activate opening or closing. They are primarily composed of two discs - one allowing a forward flow, and the other restricting backward flow by closing the valve when the fluid flow rate decreases or fluctuates.

A key disadvantage of check valves is that they cannot be used in pulsating systems because the continuous irregularity in flow due to vibrations would result in the valve prematurely preventing a forward flow operation.

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EquipmentGeneral EquipmentPipeline and Underground SystemsWater and WastewaterPipeline

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