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Claw Pumps

Claw pumps work by rotating two hooked rotors in a suitably shaped chamber, creating and transporting air volumes from the inlet channel to the outlet channel. The rotors rotate without contact with each other and are synchronized by gears. This rotation is completely dry, without the need for lubricants or the formation of residues generated by friction during rotation. The gears, which provide synchronized rotation of the rotors and their bearings, are lubricated with oil and shielded in a compartment separated from the rotor rotation chamber by gaskets and seals.

DOVAC claw pumps offer significant advantages, including low operating costs due to modest energy consumption and high efficiency. Maintenance is kept to a minimum, and thanks to the lack of friction between the moving rotors, performance is maintained over time.

In addition, all models can also be used as compressors, making them versatile.

Main use sectors

  • Food industry
  • Environment
  • Medical
  • Packaging
  • Plastics, rubber, resin
  • Printing and paper conversion
  • Pneumatic conveying
  • Glass, marble, wood

PA 155 / PA 315

Rated capacity: 155 – 300m3/h

VA 155 / VA 155-1 / VA 315 / VA 315-1

Rated capacity: 155 – 250 m 3/h


Rated capacity: 310 – 750 m 3/h