مشخصات لوله های پوششی به روش پیچشی (WRAP)
 
The PE-Wrapping plant to be produced is for polyethylene(PE) coating of HF and submerged arc-welded steel pipes according to DIN 30670
Pipe Diameter18"20"22"24"26"30"36"40"42"44"48"52"56"
Wall Thickness  6.4 mm   to   25.4 mm
Pipe Length  8.0 m  to  12.0 m
Pipe Quality  API-5L
 
The coating  be applied in three layers , as follows :
Epoxy Resin Coat Thickness60 µ  to  600 µ  By Electrostatic Spraying
Bonding Agent Coat Thickness170 µ  to  250 µ  By Electrostatic Spraying
Polyethylene Coat2.2 mm  to  3.5 mm  By Extruder Hosed Film
 
Coat thickness be dependent on pipe size , as follows :
Nominal Pipe OutsideNominal Coat ThicknessHeavy Coat Thickness
<500 mm2.2 mm3.0 mm
500 mm  to 800 mm2.5 mm3.5 mm
>800 mm3.0 mm3.5 mm