November 2020

Valves, Pumps and Turbomachinery

Improving process pumps requires technical and managerial action

For many years, manufacturers have emphasized low price over high reliability.

Bloch, Heinz P., Hydrocarbon Processing Staff

For many years, manufacturers have emphasized low price over high reliability. When questioned why, their automatic defense was a correct statement to the effect that most pumps are purchased by users (or the user’s designated EPC firm), which seek lowest possible initial cost, highest possible efficiency and adherence to on-time delivery. In the U.S., most pump offers are evaluated on that basis. In times of plenty, the owners and financial backers of many plants were primarily interested in short payback periods. The ultimate cost of unavailability—and likely, the above-average cost of maintenance—were often deemed unimportant. Some cost-estimating manuals continue to show least-costly pu

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