diaphragm vacuum pump / oil-free / three-stage / low-noise level

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diaphragm vacuum pump / oil-free / three-stage / low-noise level diaphragm vacuum pump / oil-free / three-stage / low-noise level - MD 4C NT +2AK


  • Technology:


  • Lubrication:


  • Number of stages:


  • Other characteristics:

    low-noise level, chemical-resistant

  • Applications:

    for laboratories, for the chemical industry, for medical applications, for pharmaceutical applications, chemical process, for the plastics industry, for gas

  • Flow rate:

    3.4 m³/h, 3.8 m³/h (120.07 ft³/h)

  • Ultimate vacuum:

    1.5 mbar, 3 mbar (0.02 psi)


This chemistry vacuum system has a wide range of applications like evacuation, evaporation and pumping of gases and vapors in chemical, biological and pharmaceutical laboratories that do not require condensation of solvent vapors at the outlet. This system is well proven for high vacuum requirements with high boiling solvents. Typical applications are vacuum concentrators, rotary evaporators and drying ovens. The separator at the inlet (AK), made of glass with a protective coating, retains particles and liquid droplets. The catchpot at the outlet collects condensate, avoids condensate backflow towards the pump and reinforces the whisper-quiet operation of the pump.

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
separators at inlet and outlet to collect condensates

Technical data

Number of heads / stages4 / 3
Max. pumping speed at 50/60 Hzm3/h3.4 / 3.8
Max. pumping speed at 50/60 Hzcfm2.0 / 2.2
Ultimate vacuum (abs.)mbar/torr1.5 / 1.1
Ultim. vac. (abs.) with gas ballastmbar/torr3 / 2.2
Ambient temperature range (operation)°C10 - 40
Ambient temperature range (storage)°C-10 - 60
Max. back pressure (abs.)bar1.1
Inlet connectionHose nozzle DN 8-10 mm
Outlet connectionHose nozzle DN 8-10 mm
Rated motor powerkW0.25
Rated motor speed at 50/60 Hzmin-11500/1800
Degree of protectionIP 40
Dimensions (L x W x H)mm319 x 243 x 374
Noise level at 50 Hz, typ.dBA45

Other VACUUBRAND GMBH + CO KG products

Chemistry diaphragm pumps - Down to 1.5 mbar