What is a Pump? Top 7 type of Pumps


A Pump is mechanical equipment that utilizes to transport fluid from one place to another. 

Types of Pumps

There are different types of pumps on the market.

The type and selection of the pump essentially depend on our requirements. Applications mainly include the type of fluid you want to pump, the distance you want the fluid to travel, and the amount you need over a given period of time. However, the exact selection of the pump is very complex. The pump can be identified by its design and location.

There are multiple types of pumps. The major types are given below:

1) Centrifugal Pump

  • These types of pumps use centrifugal force to pump water and are driven by an electric motor.
  • Use one or more rotors.
  • It can handle large amounts of liquid and achieve a high delivery rate.
  • Low viscosity liquids, i.e., liquids that are thin and easy to flow. The higher the viscosity, the higher the energy consumption and the less efficient the pump.
  • Centrifugal pumps can also be used to collect clean water that is free of solid and chemical contaminants.
  • These pumps are ideal for domestic water supplies, lawn sprinklers, infusion tanks, emptying water tanks and wells, irrigation of tight spaces, and more.
  • However, this type of pump must be supported by a lower valve and the liquid must not contain any vapors. When pumping media containing solids, the correct type of impeller must be selected.
  • These pumps are extremely efficient.

2) Submersible pump

  • The submersible pump is completely submerged (or is pumping liquid) and the motor is covered.
  • They are most commonly used in wells and manholes and are very effective.
  • It is not necessary to start these pumps after soaking them in water.
  • They are quiet and do not require cavitation
  • Make sure that the seal does not corrode
  • Water pressure uses less energy in the pump and cools the motor.
  • Submersible pumps are divided into submersible pumps with open wells and submersible pumps with well-suited pipes.

3) Borewell compressor pump

  • Well, the pump is designed to pump water from a 600 footwell.
  • Uses air pressure to pump and dispense water regularly.
  • These pumps do not require foot valves.
  • It is durable and contributes to high energy savings.
  • Compressor pumps are further divided into integrated types and belt drive types.

4) Pressure booster pumps

  • Drainage pumps are specifically used to increase the pressure of the water supplied to the house.
  • Different pumps use different pressure levels. In this case, it is important to choose the right pump, as too much pressure will act on the hydraulic system.
  • The complete and easy-to-assemble equipment with pumps, valves, motors, and sensors guarantees maximum convenience.
  • Installed in a place with very low water pressure.
  • These pumps should be stored in a non-freezing location.
  • The pressure vessel built into the device ensures constant water pressure through all lines and is therefore ideal for residential areas.

5) Reciprocating pumps

Reciprocating pumps are used when the fluid supply pressure is very high. This article describes a single-acting piston pump. As the name suggests, it has a suction valve, a discharge valve, a single set of suction and discharge tubes, and a single-piston.

6) Axial Pump

Axial pumps are dynamic pumps. That is, it uses the momentum and velocity of the fluid to create the pump pressure. In particular, it is a centrifugal pump that uses an impeller to apply a centrifugal force to a moving liquid to generate that speed.

Axial pumps are one of the three subtypes of centrifugal pumps, the others are mixed flow and radial flow. Of the three types, axial pumps have the highest flow rate and the lowest delivery pressure. They do not guide the flow in a radial direction (perpendicular to the axis) but along a straight line parallel to the impeller axis (see figure below).

The impeller is shaped like a propeller and contains only a few blades (usually 3 or 4). The impeller is driven by a motor sealed directly on the pump body or by a drive shaft that enters the pump tube from the side. The look and feel of the impeller are similar to that of a ship’s propeller. Therefore, axial pumps are also called propeller pumps.

Axial pumps are used in applications that require very high flow rates and low pressures. They are used to circulate the liquid in power plants, sewage treatment plants, and evaporators. They are also used in flood irrigation and drainage systems. 

7) Electric Air Pump

Electric air pump include the famous types of positive displacement pumps. These operate with the help of an electric motor. This electric motor supplies electricity to the impeller and rotates it.