Natural gas leak after maintenance: common mistakes and how to avoid them

Many leaks occur immediately after maintenance because connections were loosened, gaskets were changed, or components were moved.

Old gasket

Reusing an unsuitable or deformed gasket can lead to a loss of seal integrity.

Poor alignment

If piping is forced into position using bolts, mechanical stresses are created.

Forgotten connection

Small instrument lines, pressure taps, or drain/vent points may remain loose after the work is completed.

Lack of final inspection

Completing the mechanical work does not mean the installation is ready. A final leak test must follow.

Best practice

Use a checklist with all the points that were loosened or affected so that none are omitted before restarting.