Process flow for UPVC pipe line Raw material+ additive ~ mixing ~conveying feeding ~ force feeding ~ conical double screw extruder ~"one mould two pipes" mould ~ calibrator ~ double spray vacuum calibration tank ~ ink printer ~ double belt haul-off ~ double uplift cutter ~ double pipe rack ~ finished product inspecting & packingModel Screw diameter L/D Pipe range Capacity Main motor power Total power Line length U-PVC40 51/105 14.5:1 16-40 80-120 18.5 50 22 U-PVC63 65/132 14.6:1 16-63 120-250 37 100 25
