Ningbo Jiekelong Precision Manufacturing Co., Ltd.
Ball valves are usually used for shutting off or connecting the medium flow.
The maximum permissible leakage of the valve with non-metal elastic seals is zero, and that of the ball valve with meal seals is 0.1xDNmm3/s.
Therefore, acceptable valves with metal seals possibly have slight leakage. Hence, in the applications where there must not be any leakage,especially at the pipeline ends, ball valves with soft seals should be used.
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