Membrane controlled pump MD 1, 3-stages, 1.5 mbar, 20 l/min, 1 unit(s)Membrane controlled pump MD 1, 3 stages, 1. 5 mbar, 20 l min For evacuating and conveying gases down to an extremely low end vacuum. Three stage, for a high suction capacity even at low pressures Very quiet and low vibration Long service life Easy diaphragm and valve replacements Wide range of applications for neutral gases and vapours. Technical Information Type MD 1 Cylinder 4 Steps 3 Suction capacity (l min) 20. 0 Suction capacity (m h) 1. 2 End