Diaphragm vacuum pumps, chemistry design, MD 4C VARIO select

The VARIO^® design provides vacuum control by precise and continuous adaption of the chemistry diaphragm pumps motor speed, and includes the vacuum pump, as well as the VACUU·SELECT controller.

• Improved performance, increased pumping speed and lower ultimate vacuum extends applications in both the laboratory and in industrial applications
• Long-life diaphragm with PTFE sandwich construction and unstressed diaphragm support
• Easy service/exchange of diaphragm or valves due to novel integrated valve head assembly. Easy dismantling, cleaning and reassembly without requiring readjustment
• Very quiet and ultra low vibration due to compact drive with patented motor control system. Ideal as a built-in component for sensitive equipment in both the laboratory and in industry
• Superior vapour tolerance due to integral tubing connections and gas ballast valve for continuous purge
• Easy to clean due to smooth exterior surfaces