When various turbo-sets and hydroturbine units are in operation, their turbo-oil used for coupling, lubricating and speed-governing are easily to be contaminated and to bring about more moisture and impurities and oil quality emulsification, etc,, which can seriously affect the units operating safety and living life. And traditional methods of treatment can not solve the problems but cause waste and environmental pollution, After studying for years,the plant has developed the 5th generation of special vacuum oil-filter for turbo-oil, which can quickly demulsify, remove moisture, air and impurities from turbo-oil, turn the oil clear thoroughly and raise the grade of unit main tanence, etc, with the methods of collective tilted plate sedimentation, vacuum cycloneseparation and stage deep filtration,etc,this filter is specially suited to filer oil for a water leakage unit on-line, and its efficiency is over several times of that of outdated one, In addition, it can remove the oxide of future and gelatine,etc, from oil used with series BJ together