We manufacture and sales a set of DVTP100 High Vacuum Transformer Oil Filtration System to United States. When transformers become damp, maintenance teams often use the hot oil circulation drying method. The vacuum oil purifier heats the oil to an appropriate temperature (such as 65-75°C) and injects it into the bottom of the transformer. As the oil flows through the high-temperature windings, it absorbs moisture and returns to the transformer oil purification equipment for vacuum dehydration and degassing. Combined with an external vacuum pump set, this vacuum–hot oil circulation process can effectively dry the transformer's internal solid insulation (paperboard), which cannot be achieved by simply replacing the oil.