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The most experienced and skilled pump engineers, in unison with the best centrifugal pump manufacturers, will not produce a centrifugal pump which gives satisfactory service, if the hydraulic performance criteria specified do not approximate those which are required in the system in which the pump must operate. The reason for such discrepancies in performance specification is often related to neglect of process system analysis and long-term and short-term process flow requirements, when arriving at the specified pump performance characteristics.
Where the performance characteristics of a centrifugal pump are incompatible with the process system and flow requirements imposed upon it, the negative consequences are reflected in the areas of boundary integrity or safely, reliability, operating and maintenance costs, capital cost and hydraulic performance. Incorrect fluid specification will also have similar results. This paper addresses inaccuracies in performance specification and fluid specification as they relate to centrifugal pumps and discusses the consequences, in an effort to highlight the importance of proper analysis in these areas.
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