VARIO Diaphragm pumps:

The right process-vacuum at the push of a button...

... finds vacuum level automatically
... adapts to process self-acting
... controls with precision

The improvement:

Higher pumping speed and better ultimate vacuum due to variable-speed drive.
Fast and precise adaptive control.

Specific advantages for chemical applications ("C" - version):

... comfortable, efficient and with optimal solvent recovery

Performance control

• always the optimal pumping speed regardless of installation-size or gas volume due to fully automatic motor speed adaption
• automatically adapts the vacuum level to the respective process parameters (distillation, drying, etc.)

Environmentally friendly and economical

• optimal solvent recovery due to continuos evaporation due to automatic adaptation to temperature and composition changes.
• VARIO Chemistry Pumping Units offer an ideal combination of the modern control techniques of VARIO chemistry diaphragm pumps and an efficient solvent recovery due to exhaust vapour condenser
• demand-oriented vacuum and cooling-water
• extended diaphragm lifetime: minimized operating and maintenance costs
• shortened process times with high evaporation rate

Interactive communication

• serial interface: process controllable by programmed, application-specific control routines or automatic sequences

Specific advantages of use as backing pumps for turbo-molecular pumps:

VARIO diaphragm pumps are the modern backing pumps with:

• adaptive pumping speed, continuously adjustable to the process
• shorter pump down time (due to increased motor speed)
• better ultimate vacuum due to adaption of motor speed
• unrivalled long diaphragm lifetime by reduction the number of diaphragm strokes
• Vacuum Controller CVC 2000^II offers a serial interface and backing pressure indication

In many cases the considerably improved ultimate vacuum, due to the patented TURBO-MODE, leads to decreased power consumption and longer lifetime of the turbo pump.