Project Description


Rotary Lobe Blowers for Natural Gas Compression


CRBIO – GRBIO rotary lobe blower units are especially developed for the conveying and compression of biogas, as well as natural and landfill gases in the waste water and power generation plants.

  • Pressure up to 400 mbar(g)

  • Vacuum up to 500 mbar(a)

  • apacity up to 2,850 m³/h

Request for Quotation

Standard version

They are rotary lobe blower packages, assembled on a skid, available in two different versions : with a special belt and pulley drive (GRBIO) and directly coupled (CRBIO). CRBIO – GRBIO has also been certified according to the most important EC guideline 94/9/EC (ATEX) – group II in category 2, in order to guarantee the best safety usage in this application.

Options available

  • Pressure regulator with bypass for keeping outlet pressure constant
  • Inlet and outlet pressure gauge indicators in ATEX version
  • Temperature protection switch in ATEX version


  • CRBIO – GRBIO 1 with blowers from RBS 15 to RBS 25 series.
  • CRBIO – GRBIO 2 with blowers from RBS 35 to RBS 66 series.
  • CRBIO – GRBIO 3 with blowers from RBS 75 to RBS 86 series.