March 24th 2023
From the previous several articles, we know the cause of external leakage. And this passage I will introduce the cause analysis of valve internal leakage.
Leakage inside the valve. In general, the valve leakage occurs in three parts:
First, the contact between the opening and closing parts and the sealing surface of the valve seat leakage occurs;
Internal leakage occurs at the joint of valve body and bonnet ball valve;
Third, the valve close position adjustment is not in place, the occurrence of internal leakage.
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