What is a disadvantage of a centrifugal pump?

A centrifugal pump operates by transferring energy to the fluid through the rotational motion of the impeller. While this design is efficient and effective, it can lead to clearance issues between the impeller hub and the housing, especially if the pump is not properly calibrated or maintained. These clearance issues can affect the pump's performance by causing inefficient fluid movement, increased wear, and potential cavitation, which can damage the pump over time.

The other aspects mentioned highlight advantages of centrifugal pumps. For example, they are typically self-priming, meaning that they can create a vacuum to draw fluid in without needing to be manually filled first. They also generally require minimal maintenance compared to other types of pumps, such as piston pumps, which often involve more complex parts that can wear out more quickly. Additionally, centrifugal pumps are known for their efficiency in certain applications, particularly where continuous flow is needed. Understanding these dynamics helps operators manage centrifugal pumps effectively and mitigate potential issues related to clearance.