Saturday, 4 June 2016

PUMPS




Pumps: The hydraulic machines, which convert the mechanical energy into hydraulic energy, are called pumps. The hydraulic energy is in the form of pressure energy and flow. A pump is a device used to move fluids, such as liquids, gases or slurries.


Classification of Centrifugal pump on the basis of flow:
       - Radial flow pump: Used for high pressure or High head.
            - Mixed flow pump: Used for medium flow & medium head/ pressure.
            - Axial flow pump: Used for high flow and low pressure.
Classification of Centrifugal pumps on the basis of:
  
    Types of casing:   (a)Volute casing
                                        (b) Vortex or Whirlpool casing.
                                        (c) Diffuser vane casing.
   
   Types of stage:     (a) Single stage.
                                        (b) Multistage