What is the consequence of poorly maintained pump packing?

Poorly maintained pump packing can lead to scoring the shaft, which is a significant consequence. The pump packing is designed to seal the space between the rotating shaft and the stationary part of the pump, preventing leaks of fluid and maintaining pressure. When the packing is worn or improperly adjusted, it no longer provides an adequate seal, which can result in excessive friction and leakage.

The increase in friction can lead to wear on the shaft itself, causing it to score or become damaged over time. This scoring occurs when the rough edges of the packing materials grind against the shaft, creating grooves or marks that impair the functionality of the pump. Such damage can lead to further operational issues, such as leaks and decreased performance, which can be costly to repair.

In contrast, while poorly maintained pump packing may lead to a decrease in efficiency and potentially result in increased noise due to vibrations or leaks, the most direct and critical consequence highlighted in this context is the physical damage to the shaft itself caused by inadequate packing maintenance.