Page 6 - Centrifugal Pumps Design and Application

Contents

Preface —..... —...... xi

Part 1: elements of pumps Design 1

Part1: Elements of Pump Design 1
1
introductio
,
3
n
..,.,
System Analysis for Pump Selection. Differential Head Required, NPSHA. Shape of
Head Capacity Curve. Pump Speed. Liquid Characteristics. Viscosity. Specific Grav-
ity. Construction. Pump Selection.
2 Specific Speed and Modeling Laws . — 11
Definition of Pump Specific Speed and Suction Specific Speed. The Affinity Law. Spe-
cific Speed Charts. Correction for Impeller Trim. Model Law. Factoring Laws. Conclu-
sion.

3 Impeller Design 28
Impeller Layout. Development of Impeller Profile (Plan View). Development of Impel-
ler End View. Impeller Inlet Angles. Development of Impeller Vane. Design Sugges-
tions. Notation.

v