Analysis identifies cause of pump failure

A Weibull reliability analysis of a repeated pump problem at Chevron Corp.'s Pascagoula, Miss., refinery helped the company identify the failure mode and improve reliability.Rather than accepting the frequent repairs as normal for rotary pumps, maintenance personnel used the analysis to understand that the pump failures were not random.With the understanding that the pump design may not be appropriate for the application, Chevron can select a more robust design to extend the service life of the equipment.Repair history Click here to enlarge imageBefore personnel implemented the Weibull analysis, this particular rotary pump required constant repair. The plant's database documents ...

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