The following topics are covered in this application. - Introduction -Types of pumps -Positive displacement and Centrifugal pumps -Rotary-type positive displacement pumps a) Gear pumps b) Screw pump c) Rotary vane pump -Reciprocating-type positive displacement pumps a) Plunger Pump b) Piston pump c) Diaphragm pump - Linear-type positive displacement pumps a) Rope pump b) Chain pump - Other Positive displacement pump 1) Rotary lobe pump 2) Progressive cavity pump 3) Hydraulic pump 4)