One- and two-stage rotary vane pumps with built-in oil pump and powerful gas ballast device for outstanding water vapour tolerance. Pumps are powerful yet compact and lightweight.

• High pumping capacity, even at low pressures
• High vapour tolerance to water and solvents due to the large amount of gas ballast (up to 10% of the pumping capacity), quiet running and very good final pressure even with gas ballast
• Vacuum-tight oil circuit at shutdown to prevent corrosion
• Long oil change intervals due to large usable oil volume
• Smallest dimensions, low weight, telescopic construction makes for easy maintenance