Know and Understand Centrifugal PumpsL. Bachus, A Custodio Pumps are commonly encountered in industry and are essential to the smooth running of many industrial complexes. Mechanical engineers entering industry often have little practical experience of pumps and their problems, and need to build up an understanding of the design, operation and appropriate use of pumps, plus how to diagnose faults and put them right. This book tackles all these aspects in a readable manner, drawing on the authors' long experience of lecturing and writing on centrifugal pumps for industrial audiences. |
Contents
| 1 | |
| 12 | |
Chapter 3 Cavitation | 24 |
Chapter 4 The Affinity Laws | 39 |
Chapter 5 Useful Work and Pump Efficiency | 44 |
Chapter 6 Pump Classification | 51 |
Chapter 7 Understanding Pump Curves | 76 |
Chapter 8 The System Curve | 92 |
Chapter 11 Bearings | 155 |
Chapter 12 Pump Shaft Packing | 171 |
Chapter 13 Mechanical Seals | 180 |
Chapter 14 Failure Analysis of Mechanical Seals | 202 |
Chapter 15 Common Sense Failure Analysis | 226 |
Chapter 16 Avoiding Wear in Centrifugal Pumps | 232 |
Chapter 17 Pump Piping | 238 |
| 248 | |
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Common terms and phrases
alignment applications atmospheric balanced bearing begin calculate called cause cavitation centrifugal pump Chapter chemical close components consider correct curve damage determine diameter discharge double efficiency elbows elements elevation energy engineer equipment example exist faces factor failure feet Figure flow fluid force formula friction function gauge grease head heat housing impeller inadequate inch increase indicator industry inside installation internal less liquid loading losses lubricant maintenance manufacturer mechanical seal motor mounted moving normally NOTE nozzle NPSHa NPSHr O-ring operating packing parallel perform piping plant positive pressure prevent problems production pump curve reading reason reduce resistance rings rotary rotating running seal chamber shaft specific speed stationary suction suction piping tank temperature tolerance valve vapor velocity vessel volute wear zone
Popular passages
Page 10 - ... 32.17 ft-lb/lbf-s2 Static Suction Head. This is the difference in elevation, in feet, between the centerline (or impeller eye) of the pump and the liquid surface in the suction vessel. The liquid surface is above the pump centerline. In Fig. 2-10, Z\ is the static suction head. Static Suction Lift. When the liquid level in the suction vessel is below the centerline (or impeller eye) of the pump, the difference in elevation, in feet, between the liquid surface of the suction vessel and the centerline...
Page 4 - Atmospheric pressure is the force exerted by the weight of the atmosphere on a unit area.