Why we need an expansion joint?

The same pump failed again. Manufacturers repeatedly fail repeatedly on the same pump, even if the pump has been properly repaired, installed and aligned, there will still be chronic vibration problems.

Careful observations confirm that the vibration is not emitted from the pump, but is affected by vibration from other equipment as it travels along the pipeline. How to prevent malicious vibrations from affecting the pump?

Pipe expansion joints may be helpful.