ROOTS VACUUM PUMPS

Roots vacuum pumps, or vacuum boosters, are dry vacuum pumps that are used together with backing pumps in a wide range of applications where large pumping speeds are required. Vacuum boosters operate completely contact-free and without sealing fluids such as oil or water in the working chamber, although with most models the two gearwheels of the synchromesh gearing and the bearings for the impeller shafts are lubricated with oil. Some roots vacuum / booster pumps are equipped with a by-pass valve.

Advantages

  • robust and economical
  • dry running
  • modular design
  • process safe and reliable
  • available as single aggregates
  • many accessories
  • frequency control available

Application examples

General applications


  • Dust extraction
  • Drying
  • Aeration
  • Different process applications
  • Vacuum conveying

Environmental technology


  • Dust extraction
  • Aeration
  • Waste water treatment
  • Tank Aeration
  • Gas stirring

Advantages

  • robust and economical
  • dry running
  • modular design
  • process safe and reliable
  • available as single aggregates
  • many accessories
  • frequency control available

Application examples

General applications


  • Dust extraction
  • Drying
  • Aeration
  • Different process applications
  • Vacuum conveying

Environmental technology


  • Dust extraction
  • Aeration
  • Waste water treatment
  • Tank Aeration
  • Gas stirring

Principle of Operation

The single lobe roots vacuum pumps have been designed for use in pump sets in combination with a rotary vane backing vacuum pump. The working principle of roots vacuum pumps or vacuum boosters is similar to the rotary vane pumps. Through the inlet (A) air enters a conveying cell formed by the two rolling pistons (C, D) in the housing. The cell is then separated from the inlet by the following piston head (F). The air in the cell (E) is conveyed without reduction until it reaches the outlet (B), where air with a higher absolute pressure flows from the pressure chamber into the following cell, and must then be discharged. Some models are equipped with an automatic bypass valve (G) that limits the pressure differential between inlet and outlet.

*This description does not consider the approach of each manufacturer to the technology, but represents a generalized description that tries to cover the basic operating principle.

EHRLER & BECK OFFERS THESE ROOTS VACUUM PUMP SERIES

RUVAC SERIES

Leybold

PANDA / PUMA SERIES

BUSCH

VACUUM PUMP TECHNOLOGIES

Oil Lubricated Rotary Vane Vacuum Pumps
Oil Free Rotary Vane Vacuum Pumps
Side Channel Vacuum Pumps
Claw Vacuum Pumps
Liquid Ring Vacuum Pumps
Radial Vacuum Pumps
Screw Vacuum Pumps
Roots Vacuum Pumps