title: Centrifugal Pumps
author: Igor J. Karassik
description: Written by two of the most authoritative pump engineers in the United States, this complete and up-to-date reference gathers practical information on all aspects of centrifugal pumps. Coverage spans from the classification of various forms of centrifugal pumps to the essential features of pump construction, application, installation, operation and maintenance.
zlib_text: Section 14
  Fans, Pumps, and
  Compressors
  BY
  T. L. HENSHAW
  Consulting Engineer, Battle Creek, MI.
  IGOR J. KARASSIK
  Late Senior Consulting Engineer, Ingersoll-Dresser Pump Co.
  JAMES L. BOWMAN
  Senior Engineering Consultant, Rotary-Reciprocating Compressor
  Division, Ingersoll-Rand Co.
  BENJAMIN B. DAYTON
  Consulting Physicist, East Flat Rock, NC.
  ROBERT JORGENSEN
  Engineering Consultant.
  14.1 DISPLACEMENT PUMPS
  by T. L. Henshaw
  General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-2
  Reciprocating pumps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-2
  Rotary Pumps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-11
  Volumetric Efﬁciency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-13
  Power Output and Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-13
  Mechanical 