This vacuum oil purifier is developed using the latest technologies including deacidification filtering,anti-settlement ,coalescence-separation,and vacuum drying,dedicated to the purification and regeneration of the imported or domestic phosphate flame-resistant hydraulic oils in large-scale fire units.The whole unit uses stainless steel materials unit and special filtering core to ensure that the good adaptability of its materials and phosphate flame-resistant hydraulic leakage and corrosion,it has effective removal of acid in the oil,and moisture,gas and particulate impurities,and other harmful also can be in fully automated control ,running at low termperature.