May 2012

Special Report: Maintenance/Reliability

When good pumps turn bad

A straightforward methodology deals with troublesome pumps

Perez, R. X., Pumpcalcs

We all have them. They cause us to worry incessantly, lose sleep and frequently miss precious time with our families. They are often the bane of processes that require liquids to be transferred from one location to another. These mechanical monsters are pumps that fail repeatedly and are widely and unflatteringly known as “bad actors.” By definition, bad actors are pumps that fail so frequently that they stand apart from the rest of the pump population. There are bad actors that have failed as many as 16 times in one year, some even more often. These troublesome machines sap precious resources from our maintenance departments and prevent us from achieving world-class reliabili

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