Choosing Between Different Types of Vacuum Pumps

Vacuum pumps are used in various industrial sectors. Based on technology and characteristics, several types of vacuum pumps are prevalent in use. The typical characteristics determining the use and application of vacuum pumps include:

  • Specific technology (also determines price)
  • Flow rate
  • Vacuum level
  • Lubrication
  • And chemical resistance.

We are discussing here four primary types of vacuum pumps.

1. Rotary Vane Vacuum Pump

Rotary Vane Vacuum Pump is a high-performance vacuum pump. It is small and compact and creates a rough vacuum (1 to 10.3 bars). It needs lubrication with high-quality vacuum pump oils. Simultaneously, the rotary vane pump needs cooling to allow for required heat dissipation. Rotary vane pumps are helpful in industries using aqueous samples and high-boiling solvents.

Rotary vane pumps are highly efficient and affordable. An important example is the Pfeiffer Rotary Vane Vacuum Pump.

2. Turbomolecular Vacuum Pump

Turbopumps are classified as kinetic pumps. They provide a reliable contamination-free vacuum option. Moreover, these pumps have high pumping speeds from 50 l/s to 3000 l/s. Therefore, these pumps are helpful in applications requiring high throughput of light gases. In addition, turbo vacuum pumps require a fore vacuum pump and allow for function controls for innovative onboard frequency converters.

They are expensive and serve in high-tech operations. Pfeiffer Turbomolecular Vacuum Pump is an example of a widely employed Turbomolecular Vacuum Pump.

3. Diaphragm Vacuum Pump

Diaphragm Vacuum Pumps are dry or oilless pumps with high corrosion resistance. Diaphragm Vacuum Pumps are resourceful in industries requiring intermittent use. They are widely employed in industries including:

  • The food industry pumps fluids, including water, chocolate, or syrups.
  • Cosmetics industry with a need for plumping creams and gels.
  • The chemical industry uses acidic, viscous, and corrosive products.
  • Industries employing rotary evaporation for volatile compounds treatment.

Diaphragm Vacuum Pumps have lower maintenance costs than rotary vane vacuum pumps. Leybold’s DIVAC Diaphragm Vacuum pumps are widely employed in high-precision analytical operations.

4. Scroll Vacuum Pump

Scroll vacuum pumps are beneficial for clean and dry vacuum pumping. They feature two spiral-shaped scrolls to pump liquid or gases, with one fixed spiral and the other revolving eccentrically around the first. This movement compresses the gas or liquid used in the pump. In Scroll Vacuum Pumps, the joint spiral and its movement create air tightness.

Scroll Vacuum Pumps are dry and noiseless pumps. They must be protected from debris or particles entering the spiral; therefore, they are most suitable for use in controlled environments like Research and Development laboratories. An example includes the Edwards scroll vacuum pump.

Vacuum Pumps for Sale

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