Compact design, ready to use, no set-up required. Constructed in highly chemical resistant materials. Quiet operation. 100% oil-free pumping of gases. Gas ballast as standard for working with condensable vapours. Good ultimate vacuum even with gas ballast. High vapour tolerance for water and solvents. Long service life, low maintenance. AK + EK: Inlet separator, exhaust vapour condenser. Characteristics and applications: Without vacuum control: MD 4C NT + AK+EK: Larger or multi-user applications the local vacuum network VACUU·LAN®. Final pressure of 1.5/3 mbar. For high-boiling solvents.