... It can guarantee the oil in the hydraulic system, dynamic system and the lubrication system normal operation, so ... completely. 2. It has the back flush system, which can clear impurities automatically. 3. ... Oil Regeneration Purifier Series ZYD-M: Zhongneng Mobile Type Transformer Oil Purification Plant, Oil Recycling Series ZYD-E: Zhongneng Enclosed Type Transformer Oil Purification Plant, Oil Recycling ...