Rotary vane pumps from VACUUBRAND offer great performance in a compact design. Even with the gas ballast open, they enable a very good ultimate vacuum. You also benefit from extended oil change and maintenance intervals thanks to optimized lubrication circuit and large usable oil volume.

• Very high flow rates even at vacuum levels approaching ultimate vacuum
• High water vapor tolerance due to efficient gas ballast
• Very good ultimate vacuum even with gas ballast
• Vacuum-tight at switch-off
• External anti-suckback valve not needed
• Large oil volume: long intervals between oil changes
• Ease of maintenance due to telescopic design

The RZ 9 is a two-stage powerful rotary vane pump for fast evacuation of vessels and at higher gas flow rates. Typical applications are lyophilization, fine vacuum distillation and drying chambers. The two-stage rotary vane pump RZ 9 is also available in various packages with matching accessories such as exhaust filter FO and valve VS 25. Rotary vane pumps are used for a process vacuum of a few mbar to 10⁻³ mbar. 40 mbar water vapor tolerance.