What is the Difference Between Vacuum Pump and Centrifugal Pump?

What is the Difference Between Vacuum Pump and Centrifugal Pump?When we talk about the pump, one thought crosses our mind: MOTOR. Yes, it’s a mechanical word, and there are different types of pumps according to their working process. So do you know the what is the difference between a Vacuum Pump and a Centrifugal Pump?

If you don’t know the difference, then you should not be a worry at all. We are here to let you know about the main differences between the Centrifugal Pump and the vacuum pump. However, you should also know about these pumps’ working processes.

In this content, you will know about the Positive displacement pump types, the Advantages of centrifugal pumps over positive displacement pumps, Vacuum pumps, and most importantly, the difference between the vacuum pump and the centrifugal pump. So, let’s start-

Positive displacement pump types

If you need a high fluid transfer velocity, you should use the positive displacement pump. This pump works very well under pressure and will help you maintain a high flow of fluid. The advantage of using this pump is that it can hold highly viscous fluids.

  • Vane Pump (Impeller Pump)
  • Progressive Cavity Pump (PC Pump)
  • Screw Pump
  • Peristaltic Pump (Hose pump)
  • Gear Pump – Internal & External
  • Rotary Lobe Pump
  • Diaphragm Pump

Centrifugal Pump Types

A centrifugal pump is used in industrial and commercial or scientific fields. However, in boiler feedwater, a centrifugal pump is used. So you can understand why this is a powerful pump. Besides, the working principles of this pump are also very complex. However, let’s see the centrifugal pump types below-

  • Solenoid
  • Hydraulically Actuated
  • Air-Operated Double Diaphragm Pumps
  • Mechanically Actuated

Vacuum Pump Types

A vacuum pump works in a mechanism that compresses air by taking the air from the atmosphere. This pump is useful for pumping both gas and liquid. Due to extrusion, the rate of the air is high and bulky. However, let’s have a look at the types of vacuum pump.

  • Liquid ring vacuum pumps
  • Rotary vane vacuum pumps
  • Scroll vacuum pumps
  • Turbomolecular vacuum pumps
  • Diaphragm vacuum pumps

Head to Head: Vacuum Pump Vs Centrifugal Pump

You can also say the Difference between a diaphragm pump and a centrifugal pump as a diaphragm pump is a centrifugal pump. The difference will help you to know about the pump more, and you can choose the perfect pump for your work if you know them perfectly. So, let’s see the difference table below-


Centrifugal PumpVacuum Pump
1. Flow is continuous and smooth1. Flow is fluctuating though it’s not a discontinueous process.
2. Maintenance cost is less.2. Maintenance cost is comparatively high.
3. Can run at high speed3. It can’t run at high speed
4. This pump is used for high discharge.4. This is used for low discharge.
5. It is used to flow fluid.5. It is used to flow gas and liquid.
6. Used for low head6. Used for high head.
7. Suction and delivery valve is not necessary.7. Suction and delivery valve is necessary.
8. Small floor area is required.8. Large floor area is required.
9. Impeller mechanism.9. Piston mechanism.


  1. What’s the difference between a centrifugal pump and a centripetal pump?

– According to physics, the centripetal pump is real, and it pushes the fluid or force toward the center, whereas the centrifugal pump is fake and pushes away the force from the center.

  1. What is a vacuum pump used for?

A vacuum pump is used for cleaning and sealing and it comes in two different variants- wet or dry.

Final Note

Hopefully, you have got your answer to What is the difference between a vacuum pump and a centrifugal pump? And now, you are ready to choose the perfect pump for your home or commercial use.

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