The dual-column screen changer serves as the critical continuous filtration equipment for TPU underwater pelletizing lines. Its core value lies in enabling non-stop screen changes, minimizing pressure fluctuations, and preventing melt degradation. It is tailored to accommodate TPUs processing characteristicsincluding heat sensitivity, high viscosity, and susceptibility to impuritieswith a production capacity range of 5003000 kg/h. Maintaining a differential pressure control of 0.5 MPa ensures pe