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Main causes of leaks in flange connections
2026-02-18
Leaks in flange connections remain one of the most common problems in pipeline operation. Despite the high reliability of the design, improper installation or failure to comply with technical requirements can lead to loss of tightness.
One of the main reasons is uneven tightening of bolts. If the force is not distributed correctly, the gasket is compressed unevenly, which leads to the formation of channels for leakage of the medium. Another common reason is that the seal surface does not meet the standard or the presence of mechanical damage.
Another factor is the wrong choice of gasket. High temperatures and pressure require special materials that can maintain their shape during long-term use. The use of unsuitable gaskets often leads to gradual loss of seal.
In recent years, more companies have implemented torque control procedures and used hydraulic tools to ensure uniform flange installation. This significantly reduces the likelihood of accidents and increases the service life of the connection.
Understanding the causes of leaks allows you not only to prevent accidents, but also to reduce equipment maintenance costs.
