What is a potential consequence of a centrifugal pump running deadhead for an extended period?

When a centrifugal pump runs deadhead, it means that the pump is operating without any liquid being discharged; essentially, it's moving against a closed valve or a blockage. In this scenario, the pump continues to generate pressure, but there is little to no flow. This condition can lead to overheating due to the friction generated within the pump components, as the energy being produced is not being dissipated through flow.

The lack of cooling from the fluid means that the internal components, such as the seals and bearings, can reach temperatures well beyond their designed operational limits. Over time, this excessive heat can cause materials to degrade, resulting in potential damage to the pump. Therefore, running a centrifugal pump deadhead for an extended period can lead to serious operational failures and require costly repairs or replacements.