skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Design key to fluid flow, pump maintenance

Abstract

This article discusses some of the possible problems caused by improperly designed piping and presents guidelines for avoiding or at least reducing them. Explains that even if design and manufacture are precisely correct and the pump perfectly matched to the operating conditions, the pump can perform properly only if supplied with a steady flow of liquid arriving at the pump suction flange under sufficient absolute pressure to equal or exceed the net positive suction head (npsh) required by the pump and with uniform velocity with no rotational component. Points out that failure of the suction piping to deliver the liquid to the pump in this condition can lead to noisy operation, random axial oscillations of the rotor, premature bearing failure, and cavitation damage to the impeller and inlet portions of the casing. Discusses adequate priming or venting, piping velocities, and elbow use limits.

Authors:
Publication Date:
Research Org.:
Worthington Division, McGraw-Edison Co., Mountainside, NJ
OSTI Identifier:
5882233
Resource Type:
Journal Article
Journal Name:
Oil Gas J.; (United States)
Additional Journal Information:
Journal Volume: 81:4
Country of Publication:
United States
Language:
English
Subject:
02 PETROLEUM; CENTRIFUGAL PUMPS; PERFORMANCE; PIPES; DESIGN; FAILURES; FLUID FLOW; MAINTENANCE; NOISE; OPERATION; OSCILLATIONS; PIPE FITTINGS; RECOMMENDATIONS; SIZE; VELOCITY; PUMPS; 020400* - Petroleum- Processing

Citation Formats

Krutzsch, W C. Design key to fluid flow, pump maintenance. United States: N. p., 1983. Web.
Krutzsch, W C. Design key to fluid flow, pump maintenance. United States.
Krutzsch, W C. Mon . "Design key to fluid flow, pump maintenance". United States.
@article{osti_5882233,
title = {Design key to fluid flow, pump maintenance},
author = {Krutzsch, W C},
abstractNote = {This article discusses some of the possible problems caused by improperly designed piping and presents guidelines for avoiding or at least reducing them. Explains that even if design and manufacture are precisely correct and the pump perfectly matched to the operating conditions, the pump can perform properly only if supplied with a steady flow of liquid arriving at the pump suction flange under sufficient absolute pressure to equal or exceed the net positive suction head (npsh) required by the pump and with uniform velocity with no rotational component. Points out that failure of the suction piping to deliver the liquid to the pump in this condition can lead to noisy operation, random axial oscillations of the rotor, premature bearing failure, and cavitation damage to the impeller and inlet portions of the casing. Discusses adequate priming or venting, piping velocities, and elbow use limits.},
doi = {},
journal = {Oil Gas J.; (United States)},
number = ,
volume = 81:4,
place = {United States},
year = {1983},
month = {1}
}