Off-Line Oil Purification Systems Used For Marine Lubrication, Hydraulic Power Systems & Generation, Offshore, Pulp & Paper, Cement Works & Steel Mills. Fine Filters For Purification Of All Types Of Oil; Filter Separators For Removal Of Solids & Water From Oil; Desorbers For Water Removal From Oil; Vacuum Units Specifically Developed To Maintain "Clean & Dry" Transformer Oil On Operating Transformers