... higher recycled oil quality 4.Vacuum distillation equipment for used oil This DIR-VIII vacuum distillation machine was installed ... parts of the equipment:1,catalyzing system:catalyst blending tank,blender,transfer pump;2,Blending system:catalyzing treatment tank,blender,vacuum ... first stage cooler,second stage cooler;5,Vacuum system:vacuum cooler,vacuum water tank,vacuum pump set;6,Oil storage system: ...