It conquered defect of shour lifetime and pollution to environment of oil pump,and save water,it is capable to satisfy vacuumizing operation of one set and multi sets of 50Lrotary evaporators.
    Water storage tank ,condensing pipe and circulating pump are of ststainless steel materail to be corrosion preventive,it is the ideal equipment in the trial production of medication purification.
    The machine may be used for completion of refrigeration equipment