Vacuubrand MD 4C NT 2.2CFM Chemistry Diaphragm Pump 110V


Vacuubrand MD 4C NT

Three-stage chemistry-design diaphragm pumps are an excellent solution for continuous, oil-free pumping of corrosive gases and vapors and meet even challenging requirements. The three-stage design provides the advantageous combination of high pumping speed and very low ultimate vacuum. All parts of the MD 4C NT in contact with pumped media are made of chemically resistant fluoroplastics. Well-proven PTFE sandwich diaphragms provide increased reliability and extended operating life. Due to the gas ballast valve and its very good ultimate vacuum (even with gas ballast) the MD 4C NT is also suitable for pumping condensable vapors of high-boiling solvents. The NT-series features further improved performance data, easy service and superior vapor tolerance. Three-stage chemistry diaphragm pumps are an excellent choice for applications with corrosive gases and vapors with high vacuum requirements. Typical applications are parallel and rotary evaporators, concentrators, drying ovens and many other laboratory applications. The MD 4C NT has an outstanding performance for pumping large amounts of vapor, e.g., out of drying ovens and gel dryers. This powerful 110v pump is at the heart of a complete family of well-proven and reliable vacuum systems and pumping units for larger lab applications.


Performance Features

    • Outstanding chemical resistance and superior vapor tolerance
    • Exceptionally high performance even at low vacuum
    • Excellent ultimate vacuum even with gas ballast
    • Whisper quiet and very low vibration
    • Long diaphragm life, maintenance-free drive system
    • Technical Data



MD 4C NT Specifications
Max. Pumping Speed 50 Hz 3.4 m3/h
Max. Pumping Speed 60 Hz 2.2 cfm
Ultimate Vacuum 1.5 mbar / 1.1 torr
Ultimate Vacuum with Gas Ballast 3 mbar / 2.2 torr
Number Of Heads 4
Number Of Stages 3
Ambient Temperature (Operation) 10°C to 40°C
Ambient Temperature (Storage) -10°C to 60°C
Max. Back Pressure (Abs.) 1.1 bar
Anschluss Saugseitig Hose Nozzle DN 8-10 mm
Outlet Connection Hose Nozzle DN 8-10 mm
Rated Motor Power 0.25 kW
Rated Motor Speed at 50/60 Hz 1500/1800 min-1
Protection Class IP 40
Dimensions (L x W x H) 328mm x 243mm x 198mm
Weight 14.3 kg
Noise Level at 50 Hz, typ. 45 dBA
ATEX Conformity II 3/- G Ex h IIC T3 Gc X Internal Atm. Only
NRTL Certification Yes
Items Supplied Pump completely mounted, ready for use, with manual
Rated Mains Voltage Range 1 230 V
Mains Frequency 1 50-60 Hz


MD 4C NT – Pumping Speed Graph at 50 Hz

MD 4C NT - Pumping speed graph at 50 Hz


MD 4C NT – Pump Down Graph at 50 Hz (10L volume)


MD 4C NT - Pump down graph at 50 Hz
(10 l volume)

  • MD 4C NT – Pumping Speed Graph at 60 Hz

    MD 4C NT - Pumping speed graph at 60 Hz







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