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Title: Avoid self-priming centrifugal pump

The self-priming horizontal centrifugal pump becomes known to its operator either as a good pump or a bad pump. The latter is usually replaced by another type of pump, even though a properly specified self-priming centrifugal pump might have been a good choice. Use of the guidelines described in this article are intended to help in the purchase and installation of a good pump. Self-priming centrifugal pumps are used for removing liquids from below grade sumps or pits that may also contain solids, fibers and/or muck. Alternate pumps for this service include submersible pumps, vertical turbine pumps and positive displacement pumps. These alternate pumps do not pass solid particles as large as self-priming pumps do without damage. Positive displacement pumps are not normally cost-effective when pumping liquid at rates in excess of 500 gallons per minute in low-head applications. Vertical and submersible pumps must be removed when cleaning of the pump is required. Self-priming pumps are easily cleaned by opening the access plates without moving the pump; and they cost less than the other types.
Authors:
Publication Date:
OSTI Identifier:
6679185
Resource Type:
Journal Article
Resource Relation:
Journal Name: Hydrocarbon Process.; (United States); Journal Volume: 66:1
Research Org:
Sea Lion Chemical Inc., Texas City, TX
Country of Publication:
United States
Language:
English
Subject:
02 PETROLEUM; CENTRIFUGAL PUMPS; DESIGN; PETROLEUM REFINERIES; CLEANING; COMPARATIVE EVALUATIONS; COST; FLOW RATE; OPERATION; PRESSURE DEPENDENCE; PUMPING; RECOMMENDATIONS; RELIABILITY; SPECIFICATIONS; INDUSTRIAL PLANTS; PUMPS 020400* -- Petroleum-- Processing