The reasons for air leakage in Sanitary Butterfly Valve are as follows:
The sanitary butterfly valve often leaks. This is likely because the pressure difference on both sides of the control pipeline is too large, which causes the internal disc to be impacted and damaged when the sanitary butterfly valve is opened and closed.
Another possibility is that the internal wear of the sanitary butterfly valve itself causes the air tightness to decrease. We can set the prescribed pressure regulating measures at the lower end of the butterfly valve control pipeline to prevent such a phenomenon from happening.