Page 6 -

Contents

Acknowledgements xv
Dedication xviii
About the author xix

Centrifugal Pumps 1
1.1 The pump 1
1.2 Applications 2
1.3 Pump cases 4
1.3.1 Diffuser casings 6
1.3.2 Back cover arrangements 7
1.3.3 Mounting feet 8
1.4 The impeller 8
1.4.1 Specific speed 9
1.4.2 Open and closed impellers 10
1.5 Double suction pumps 12
1.6 Materials of construction 12
1.6.1 Nonmetallic pumps 13

Pump Hydraulics 15
2.1 The pressure-head relationship 15
2.1.1 Pressure terminology 16
2.1.2 Pumping pressure 17
2.1.3 Total dynamic head 18
2.2 Performance curve 18
2.2.1 Efficiency 19
2.2.2 Net positive suction head 20
2.2.3 The composite pump performance curve 21
2.2.3.1 The best efficiency point (BEP) 22

v m