Page 137 - Practical Machinery Management for Process Plants Major Process Equipment Maintenance and Repair
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Single-acting FPiuzex
120 Major Process Equipment Maintenance and Repair
Direcl-acting rl
Simplex
PMNer {Horizontall
i Vertical Doubleacting Diaphragm Multiplex
Duplex
Reciprocating pumps {p!u;;r~Simplex
Vertical DouMe-acting Diaphragm Duplex
Figure 3-1. Classification of reciprocating action pumps.
Figure 3-2A. Horizontal, quintuplex, power pump.
Figure 3-28. Direct-acting, duplex, double-acting piston pump. (Reciprocating pumps may
be driven by electric power or a motive fluid.) Courtesy of Union Pump Company.
