Item

Technical Requirements

Appearance

The inner and outer surfaces of the pipe shall be clean and smooth, free from bubbles, obvious scratches, dents, impurities, and color unevenness. The ends of the pipe shall be cut flat and perpendicular to the pipe axis.

Elongation at Break,%

≥350

Oxidative Induction Time,min (200℃）

≥20

Longitudinal Shrinkage Rate,%（110℃）

≤3

Hydrostatic Strength

PE80

1）20℃, hoop stress9.0MPa,100h,no rupture, no leakage

2）80℃, hoop stress4.6MPa,165h,no rupture, no leakage

3）80℃, hoop stress4.0MPa,1000h,no rupture, no leakage

PE100

1）20℃, hoop stress12.4MPa,100h,no rupture, no leakage

2）80℃, hoop stress5.5MPa,165h,no rupture, no leakage

3）80℃, hoop stress5.0MPa,1000h,no rupture, no leakage