The VP 2 Autovac chemistry pumping unit, with vacuum controller, meets the demands of modern rotary evaporation. The hysteresis-free vacuum control prevents boiling retardation and foaming, therefore, ensuring consistently high process safety and an exceptionally high performance, even at low vacuum. This control enables detection of vapour pressure and fully automatic adjustment of the vacuum level to the process requirements without any user programming or intervention.

• Outstanding chemical resistance and superior vapour tolerance
• Excellent ultimate vacuum, even in gas ballast operation – heavy duty operation
• Whisper-quiet, ultra-low vibration
• Automatic vacuum level adaptation throughout the process for unattended operation and short process times due to hysteresis-free vacuum control
• Controls process vacuum, cooling water and venting on demand

The vacuum controller is easy to operate with clear text menus, selection knob and integrated venting valve. It allows simple manual intervention during the distillation process. The heart of the extremely compact VP 2 Autovac system is an outstanding chemically resistant diaphragm pump with ultimate vacuum of 2 mbar, and excellent 4 mbar in heavy duty operation (gas ballast operation for permanent internal cleaning) for high boiling point solvents. The separator at the inlet, made of glass with a protective coating, retains particles and liquid droplets.

For safe and reproducible operation with complex applications; 10 fully configurable programs can be edited and stored. Each one can be programmed with up to 10 times and pressure steps, with control functions such as venting, pumping and vacuum ramp.