PUMPS - TYPES & OPERATION PDF Print E-mail
Written by Norrie   
Saturday, 27 March 2010 14:10
Article Index
PUMPS - TYPES & OPERATION
CENTRIFUGAL PUMPS
Centrifugal Pump: the rotor
Centrifugal Pump: the casing
Prime Movers
CHARACTERISTICS OF CENTRIFUGAL PUMPS
The Valves of a Centrifugal Pump
CENTRIFUGAL PUMP OPERATION
CENTRIFUGAL PUMPS - FLOW & PRESSURE
Cavitation
AIR BINDING IN A CENTRIFUGAL PUMP
POSITIVE DISPLACEMENT PUMPS
OTHER TYPES OF ROTARY PUMPS
RECIPROCATING (PISTON) PUMPS
SINGLE ACTING RECIPROCATING PUMPS
DOUBLE ACTING RECIPROCATING PUMPS
Advantages & Disadvantages of Piston Pumps
All Pages

INTRODUCTION

In process operations, liquids and their movement and transfer from place to place, plays a large part in the process. Liquid can only flow under its own power from one elevation to a lower elevation or, from a high pressure system to a lower pressure system.

The flow of liquid is also affected by friction, pipe size, liquid viscosity and the bends and fittings in the piping.

To overcome flow problems, and to move liquids from place to place, against a higher pressure or to a higher elevation, energy must be added to the liquid. To add the required energy to liquids, we use ' PUMPS '. A pump therefore is defined as ' A machine used to add energy to a liquid '.



Pumps come in many types and sizes. The type depends on the function the pump is to perform and the size (and speed) depends on the amount (volume) of liquid to be moved in a given time.

 

TYPES OF PUMP

Most pumps fall into two main categories.

  • I. CENTRIFUGAL PUMPS
  • II. POSITIVE DISPLACEMENT PUMPS


Last Updated on Saturday, 27 March 2010 15:27