SWING CHECK VALVES
Date:2006-4-11 

Swing check valves are used to prevent flow reversal in piping systems. They are suitable for service in horizontal or vertical (flow up through valve only) piping runs. Swing check valves have low pressure drop and are best suited for moderate velocity applications. Correct sizing of swing check valves is important . Either too low a line velocity or too high a velocity can damage valve internals and shorten valve life. Service in systems involving rapid and frequent flow reversals, pulsation or turbulent flow should be avoided. Relocating swing check valves within the piping system can often minimize or eliminate problems caused by this type of application. Pacific Valves will be glad to advise you on your application.



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