Analysis of Valve Internal Leakage

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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Analysis of Valve Internal Leakage