hdpe pipe fusion machines welding standard:
Because of difference in welding standard and PE material, the time and pressure vary in different phases of welding. It suggests that the actual welding parameters should be offered by pipes and fittings’ manufacturers.
Given welding temperature of pipes made from PE、PP and PVDF by DVS standard ranges from180℃ to 270℃. Application temperature of heating plate is within 180～230℃, and its max. surface temperature can reach 270℃.
Expressions:
Section of welding pipe ends
welding pressure = Section of welding pipe ends × 0.15/ Total section of cylinders+ drag pressure（MPa）
