What is the most common type of pumps?

centrifugal pumps,semi open impeller pumps and gear pump in cement plants

Centrifugal pumps are used in large demand in boosting, lowering and applications that need small, medium pressure and flowrate.
Gear pumps & Piston pumps are used with high pressures, in hydraulic circuits  

centrifugal and reciprocating

positve displacement pumps for high pressure and low volume.non positive displacement pump for low pressure and huge volume

cetrifugle pump is  a comon pump which used normally

 

CENTRIFUGAL PUMPS, POSITIVE DISPLACEMENT PUMPS AND FURTHER TYPE OF CENTRIFUGAL PUMPS,1-IMPELLER,2-PROPELLER3-TURBINE PUMP,

PD PUMPS, two types,1-Reciprocating pumps,2-rotary pumps

Reciprocating pumps types1-plunger2-piston3-diaphgram

Rotary pump types1-,gear pump,2-screw pump3-lobe pump4-vane pump

 

centrifugal, sami open impeler type.

centrifugal pumps

Centrifugal