Transcription of POSITIVE DISPLACEMENT PUMPS-PERFORMANCE AND …
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POSITIVE DISPLACEMENT PUMPS-PERFORMANCE AND APPLICATION. by David B. Parker Manager, R&D Testing Warren pumps Incorporated Warren, Massachusetts from Proceedings of 11th International Pump Users Symposium. Copyright 1994. All rights reserved. Reprinted with permission of the Turbomachinery Laboratory, Department of Mechanical Engineering, Texas A&M University, College Station, Texas 77840-3123. POSITIVE DISPLACEMENT pumps - performance AND APPLICATION. by David B. Parker Manager, R&D Testing Warren pumps Incorporated Division of IMO Industries Warren, Massachusetts PD pumps come in many designs and operating ranges, but they all work on the same principle.
Relief valves are required in Systems with PD pumps. A centrifugal pump can operate briefly without damage against a closed discharge valve and only generate a pressure equal to its shutoff head.
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