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A centrifugal pump is a rotating machine in which flow and pressure are generated dynamically. The inlet is not walled off from the outlet as is the case with positive dis- placement pumps,whether they are reciprocating or rotary in configuration. Rather, a cen- trifugal pump delivers useful energy to the fluid or “pumpage” largely through velocity changes that occur as this fluid flows through the impeller and the associated fixed pas- sageways of the pump; that is, it is a “rotodynamic” pump. All impeller pumps are rotody- namic, including those with radial-flow, mixed-flow, and axial-flow impellers: the term “centrifugal pump” tends to encompass all rotodynamic pumps | McGraw-Hill PUMP HANDBOOK THIRD EDITION IGOR J. KARASSIK JOSEPH p. MESSINA PAUL COOPER CHARLES c. HEALD INDEX A abnormal operations centrifugal pumps 2.376 aboveground discharge pumps 2.99 abrasive wear 5.16 5.18 composite pumps 5.50 packings 2.192 particulates 5.20 rotary pumps 3.137 slurry pumps 9.364 water supply systems 9.9 absolute viscosities 8.32 AC adjustable-voltage drives 6.110-6.111 AC electric motors 6.3 acceleration electric motors 6.23-6.24 accelerators solutions 9.115 accelerometers 2.422 accessories fire protection systems 9.70 accumulators 9.464 accuracy in testing pumps 13.8 acid sulfite pulping process 9.160 acidic solutions 9.114 acoustic filters displacement pumps 3.68 acoustic treatments gas turbines 6.93 acoustic velocities displacement pump piping systems 3.64-3.65 active magnetic bearings 2.282 actuators control valves 7.23 7.26 adhesive wear 5.14-5.15 adjustable blade propeller turbines 6.79 adjustable rigid couplings 6.176 adjustable vanes centrifugal pumps 2.367 adjustable-frequency drives frequency inverters 6.118 solid state adjustable-frequency inverters 6.119-6.120 I.1 I.2 INDEX adjustable-speed belt drives 6.167 applications 6.173 control systems 6.173 gear reduction 6.169 input speed 6.168 operations 6.170 output torque 6.172 ratings 6.172 service factoring 6.172 speed control 6.169 V belts 6.170 aerated solutions 9.114 affinity laws rotary pumps 3.132 turbines 6.84 agricultural pumps transfer systems 9.441-9.442 water usage 9.5 air admission centrifugal pumps 2.367 air chambers waterhammer prevention 8.101-8.103 air cleaners engines 6.69 air conditioning chilled water marine pumps 9.236 air conditioning pumps 9.257 air intake systems engines 6.68 air leakage stuffing boxes 2.192 air lift eductors 4.47 air motor starters engines 6.71 air siphons 4.47 air ventilation hot water pumps 9.254 air-cooled eddy current couplings enclosures 6.105 air-separating tanks 2.465 airborne noise 8.117-8.122 aircraft fuel pumps 9.409-9.411 altitude
