Media Dynamics
Common causes of flange leakage
Release time:
2019-08-12
Common causes of flange leakage:
1. Wrong mouth, wrong mouth said that the pipe and flange are straight, but the two flanges are not concentric so that the bolts around cannot enter the bolt holes safely. Some will use reaming or use small bolts, but this will reduce the tension of the flange.
2. Partial mouth, partial mouth is the situation that the pipe and flange are not straight, and the flange surface is not parallel and concentric. If the internal pressure of the medium exceeds the load pressure of the gasket, leakage will occur.
3. Corrosion, corrosion medium on the gasket for a long time of a corrosion will cause the gasket chemical changes, making the gasket soft, loss of pressure.
4. Wrong hole and wrong hole are relatively easy to understand, that is, the pipeline is concentric with the flange, but the interval between the bolt holes opposite to the two flanges is too large, the bolt will generate stress, and the bolt will be cut off for a long time, causing seal failure.
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