What is crucial to prevent damage to a fire pump during operation?

To ensure the proper functioning of a fire pump and prevent damage, it is essential that the pump is adequately primed before operation. Priming refers to the process of filling the pump casing and suction line with water to eliminate air. If a pump operates without being properly primed, it can lead to cavitation, which occurs when vapor bubbles form and collapse within the pump. This can result in significant internal damage to the pump components, as cavitation can cause erosion and in some cases even catastrophic failure.

When a pump is not primed, it may also lose its ability to generate sufficient pressure, making it ineffective for firefighting operations. Proper priming ensures that the pump starts at maximum efficiency and can deliver the required flow rates and pressures needed during emergencies. Thus, the priming process is a critical step that cannot be overlooked in the operation of fire pumps.