Vacuubrand MD 12 NT VARIO Select diaphragm pump

Vacuubrand's standard diaphragm vacuum pumps are completely oil-free, equipped with fabric-reinforced double FKM diaphragm and aluminum diaphragm clamping heads, which are perfectly suitable for all vacuum-requiring laboratory or even semi-industrial applications where the transported vapors and gases are non-corrosive and do not contain organic solvents.
Product features:
• Typical area of use: pre-vacuum generator for turbomolecular pumps, vacuum drying of non-solvent samples
• Number of pump stages connected in series: 3
• Ultimate vacuum: 1.5 mbar
• Max. pumping speed 50 Hz: 13.4 m3/h

VARIO® diaphragm pump in action

This three-stage diaphragm pump is a powerful solution for continuous, oil-free pumping of non-corrosive gases to a vacuum level as deep as 1.5 mbar. With its high pumping speed, this pump is an excellent option for higher gas load applications or rapid pump down of vacuum chambers. All wetted parts are made of aluminum, stainless steel and carefully selected plastics suitable for a wide range of applications with non-corrosive gases.

The MD 12 NT VARIO select automatically adapts its motor speed to hold the desired vacuum level. That also means the pump is whisper-quiet and generates ultra-low vibrations, and has high leak tightness. The highly flexible fabric-reinforced double FKM diaphragm is ideal for extended operating life.

The VARIO design includes the variable speed pump and the VACUU·SELECT vacuum controller with an external gauge head. The demand-responsive motor speed control on VARIO models further extends the already long lifetimes of diaphragms and valves. And oil-free operation means that there is no risk of contamination from backstreaming.

Product features

• Ultimate vacuum: 1.5 mbar
• Max. pumping speed: 50 Hz: 13.4 m3/h
• VACUU·SELECT vacuum controller with graphical user interface and predefined applications simplifies work in the laboratory
• Extraordinary diaphragm life for minimum operational and servicing costs
• Contamination-free pumping and evacuation
• High pumping speed and excellent ultimate vacuum and TURBO·MODE for use as backing pump for turbo pumps