Pump Working Principle, Types and Differences

A pump is a mechanical device, that is used to pick up water from low-pressure level to high-pressure level. Basically, the pump changes the energy flow from mechanical to the fluid. This can be used in process operations which needs a high hydraulic force. This process can be observed within heavy duty equipment. This equipment needs low suction and high discharge pressure. Because of low force at suction part of the pump, the liquid will pick up from certain deepness, while at expulsion side of the pump with high force, it will drive liquid to pick up until reach preferred height. The pump has since developed into a continuous range of forms, sizes, & applications. This article discusses an overview of what is a pump, working principle, types, specifications and difference between pump & motor.

What is Pump?

The pump definition is, it is a typical mechanical apparatus, and the main function of this device is to force a gas otherwise liquid to move ahead in a pipeline. These are also used for compressing gases otherwise fill air into tires. Pumps use mechanical energy to draw the liquid inside and to discharge them throughout the exit by pressurizing them. The energy sources of pumps mainly include wind power, manual operation, electricity & engines.


Working Principle of Pump

The working principle of a pump is, it enhances the fluid’s pressure to provide the driving strength which is necessary for flow. Usually, the pressure filter supply pump is a centrifugal type pump, and the working principle is that slurry penetrates the pump during the rotating impeller’s eye which informs a circular motion

Types of Pumps

There are different types of pumps available in the market with different sizes as well as shapes from a small scale industrial pump to a large scale industrial pump. There are two types of pumps such as centrifugal pumps as well as positive displacement pumps. The classification of these pumps can be done in terms of the technique of displacement, impulse, velocity, valveless, gravity, and steam pumps.

Types of Pumps
Types of Pumps

The common types of pumps are positive displacement pumps, and these pumps will make possible the movement of the fluids by catching a set quantity of volume within the released pipe & the volume being situated is stable during the process cycle of the pump. On the other hand, a Centrifugal pump uses a rotating impeller for creating a vacuum for moving liquids from one location to another location.

Specifications of Pumps

These are normally rated with volumetric flow rate, horsepower, opening pressure within meters of the head, inlet suction in meters of the head. Here, the head can be simplified because the no.of feet can move up otherwise lesser a column of water at atmospheric force. From an early design end of observation, engineers frequently employ a quantity named the exact speed to recognize the most appropriate pump for an exact flow rate combination as well as the head.


Difference between Pump & Motor

The difference between pump and motor pump include the following. Before going to discuss the differences between them, we have to know the basic definition as well as the working of pump and motor. We have already discussed what is a pump in the above.

What is Motor?

The motor is nothing but an electromechanical device used to change electrical into mechanical energy. Motor accounts energy consumption in half of the world to contribute a global energy ecosystem.


These motors have brought the main breakthroughs within the engineering & technology field and are usually classified into two types such as AC motors as well as DC motors. AC motors work with alternating current whereas the dc motors work with direct current

The working principle of these motors may be dissimilar however the fundamental law that rules them is similar in all kinds of motors.

The difference between pump and motor mainly include definition, operation, function, types, applications and major comparisons.

Differences Pump



The pump can be defined as it is a mechanical device used to convert torque from mechanical hydraulic. It simply makes possible of fluids movement from one location to another with the help of pressure or suction

Electric motors are electromechanical devices mainly used for changing energy from electrical to mechanical.



A pump is used to move fluids by using forces like air. Air moves forward from the way because the moving element starts to move. Generally, these are activated with electric motors that drive a compressor. Thus, a partial vacuum can be created because of the water movement, later it is filled with additional air.

The electric motor works on the principle of Faraday’s law of electromagnetic induction, and this law is one of the main electromagnetism laws.



Pumps use different energy sources for rotating its compressor & exclusive of a driving force of the air. These use the shaft’s rotary movement which performs like the input energy for generating pressure.

Electric motor interacts with the motor’s magnetic field & winding current is used to produce power in order to generate energy from mechanical to electrical.

Generally, pumps are categorized into two type’s namely positive displacement as well as centrifugal. Pumps are further classified based on the displacement method into gravity, impulse, velocity, valveless, & steam pumps.

Electrical motors are generally categorized into AC type and DC type. Where, AC type motors are classified into synchronous motors & asynchronous motors, and DC type motors are classified into brushed motors & brushless motors.



The applications of pumps mainly involve in both commercials as well as industrial like water treatment plants, paper mills, car washes, etc. The pumps like centrifugal are employed for industrial & energy applications for different functions.


The applications of electrical motors mainly include in fans, conveyor systems, compressors, dishwashers, electric vehicles, robotics, lifts, hoists, vacuum cleaners, lathes, shearing machines,  grinders, and more.


Thus, from the above information, it is known that the pump is a mechanical device which is used to move or raise liquids with the help of pressure otherwise suction. Here is a question for you, what are the different types of pumps?