... SGS 3 Excellent after sale service SHD315 HDPE pipe welding machine for welding HDPE pipe from 90mm to 315mm with CE certified ... Be made of lightweight and high strength material; simple structure, small and delicate, user friendly5. Low starting pressure ensures reliable welding ... records time in soaking and cooling phases Technical parameters ModelSHD315Pipe size (mm)90,110,125,140,160,180,200,225, ...