Mechanical Seal Leak Resolution Case

A petrochemical company experienced a seal medium leak in a centrifugal pump during operation, causing downtime for repairs and disrupting continuous production. After on-site investigation, technicians determined that the leak was due to wear on the sealing surface and aging of the auxiliary seal rings. By replacing the mechanical seal with a bellows type suitable for the operating conditions and optimizing the sealing surface material, spring loading structure, and installation precision, the equipment returned to stable operation after repair. The leak was effectively controlled, and the maintenance cycle was significantly extended.