Centrifugal pumps are one of the world’s most widely used type of pump, having an extensive range of applications, from food processing to water or sewage transportation. Problems that arise within these machines decrease the flow of the fluid within the pipelines, thus interrupting the production and transport of the fluid to its destination within the process.

This may lead to other parts of the process system slowing down or behaving undesirably. As a result, it is imperative that these pumps be correctly monitored, diagnosed, maintained or replaced prior to the pump failing catastrophically to reduce downtime, material cost, and labour costs. This paper reviews the major fault modes that are found in centrifugal pumps, especially those in the water and sewage industry. Attention is given to the nature of the faults, symptoms shown within the pump that could be utilised for specific fault detection and diagnosis, and any mechanical corrective procedures that exist to help alleviate the problem. In addition, this paper contains a comparison and critique of previously published work that has attempted to diagnose the fault modes of centrifugal pumps. Click here to read more