High-pressure water pump mechanical seal failure investigation

摘要

To mitigate leakage, mechanical seals are one of the most critical components for centrifugal pumps. The typical design life for a mechanical seal is 3 yr. As such, premature failures need to be analyzed to identify the causes of the failure. The following is a case history of a mechanical seal failure for the non-drive-end (NDE) seal of a high-pressure water pump.