The external anti-corrosion thickness standards of 3PE pipes vary according to different levels and pipe outer diameters. The following is a detailed introduction:
Normal level.
The thickness of ordinary level 3PE anti-corrosion layer is usually between 1.8mm and 3.7mm. Among them, the thickness of the ordinary-grade anti-corrosion layer for steel pipes with an outer diameter of 108~245mm is 2.0mm; the thickness of the ordinary-grade anti-corrosion layer for steel pipes with an outer diameter of 273~478mm is 2.2mm; the thickness of the ordinary-grade anti-corrosion layer for steel pipes with an outer diameter of 508~762mm is 2.5mm; The thickness of the ordinary anti-corrosion layer for steel pipes with an outer diameter of 813~1220mm is 3.0mm.
Strengthen level.
The thickness of the reinforced 3PE anti-corrosion layer is usually between 2.5mm and 3.7mm. Among them, the thickness of the reinforced anti-corrosion layer for steel pipes with an outer diameter of 108~245mm is 2.7mm; the thickness of the reinforced anti-corrosion layer for steel pipes with an outer diameter of 273~478mm is 2.9mm; the thickness of the reinforced anti-corrosion layer for steel pipes with an outer diameter of 508~762mm is 3.2mm; The thickness of the reinforced anti-corrosion layer for steel pipes with an outer diameter of 813~1220mm is 3.7mm.
In addition, there are standards that stipulate that the thickness of the 3PE anti-corrosion layer should be no less than 0.3mm and no more than 4.0mm. It should be noted that the actual thickness of the 3PE anti-corrosion layer may vary depending on the specific pipeline specifications and usage environment.
