What is the definition of Pumps?
A pump is a mechanical device which converts mechanical energy into hydraulic energy. Its function is to move fluids or gases from one place to another.

Types of Pumps
Pumps are mainly categorized into two types:
(1)Dynamic Pumps
(a)Centrifugal
(b)Axial Flow
(c)Mixed Flow
(2) Positive Displacement Pumps
(i) Rotary
(a)Gear,
(b)Vane
(c) Screw
(ii)Reciprocating
(a) Piston
(b)Diaphragm
(c)Plunger