Common faults of the swing type check valves-jslvalve.com

Common faults of the swing type check valves

Common faults of the swing type check valve are:
① disc breaks ② dielectric backflow.
The cause of the disc breakage is:
The dielectric pressure before and after the check valve is close to equilibrium and "sawing" each other, the disc is often slapped with the seat, and some brittle materials (such as cast iron, brass, etc.) are broken by a disc.
The precautionary approach is to use a valve flap as a check valve for ductile materials.
The reason for the dielectric backflow is ① sealing surface damage; ② clip into impurities. Repair the sealing surface and clean the impurities to prevent backflow.

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