Chapter 23 Reciprocating and other positive displacement pumps


This chapter is in four sections. Click on section to open it.


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Section 1 The reciprocating pump

The force pump

The village pump

The semi-rotary pump

The powered reciprocating pump

            Dynamic effects

            Multi-throw pumps

            The air vessel

            Effect of pipe friction on the reciprocating pump

Revisiting the pumps figures 23-1 and 23-2


Section 2 The sliding vane pump


Section 3 The gear pump


Section 4 The hydraulic ram


Worked examples on reciprocating pumps