Vacuubrand MD-12C NT Diaphragm Pump

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Sale price$11,588.00


Three-stage chemistry diaphragm pumps are an excellent solution for continuous, oil-free pumping of corrosive gases and vapors and meet the highest requirements. The three-stage design of the eight-cylinder MD 12C NT pump provides the advantageous combination of high pumping speed and very low ultimate vacuum. All internal parts in contact with pumped media are made of chemically resistant fluoroplastics. Well-proven PTFE sandwich diaphragms provide increased reliability and extended operating life.

With its gas ballast valve the MD 12C NT is optimally prepared for pumping easily condensable vapors, due to the ultimate vacuum even with open gas ballast valve also for high boiling solvents. Upgrade kits such as inlet separator (AK) and exhaust vapor condenser (EK) enable a later adaptation to changed process requirements. Eight-cylinder NT pumps features quiet operation with smooth, easy-to-clean surfaces.

Performance features:

  • outstanding chemical resistance and superior vapor tolerance
  • reduced process time due to particularly high pumping speed even near ultimate vacuum
  • whisper quiet and very low vibration
  • very good ultimate vacuum even with open gas ballast valve for condensate purge
  • long diaphragm lifetime, maintenance-free drive system


Number of heads / stages 8 / 3
Max. pumping speed at 50/60 Hz m3/h 12.0 / 13.3
Max. pumping speed at 50/60 Hz cfm 7.1 / 7.8
Ultimate vacuum (abs.) mbar/torr 2 / 1.5
Ultim. vac. (abs.) with gas ballast mbar/torr 4 / 3
Ambient temperature range (operation) °C 10 - 40
Ambient temperature range (storage) °C -10 - 60
Max. back pressure (abs.) bar 1.1
Inlet connection Small flange KF DN 25
Outlet connection Hose nozzle DN 15 mm
Rated motor power kW 0.44
Rated motor speed at 50/60 Hz min-1 1500/1800
Degree of protection IP 40
Dimensions (L x W x H) mm 533 x 260 x 359
Weight kg 28.1
Noise level at 50 Hz, typ. dBA 52
ATEX conformity (only 230V) II 3/- G IIC T3 X Internal Atm. only
Items supplied Pump completely mounted, ready for use, with manual.
  • Stainless steel tubing KF DN 25 (1000 mm: )
  • Hose nozzle DN 15 mm / G1/2" ()
  • Small flange KF DN 16 / G1/2" ()

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