2PP / 3PP anti-corrosion steel pipe
Two PP, three PP anti-corrosion layer of performance indicators
3PP Anticorrosion:
Pipeline three PP anti-corrosion structure: the first layer of epoxy powder (FBE50-400um), the second layer of adhesive (AD) 250-400um, the third layer of polypropylene (PP) 1.4-4.0mm. Three materials into one, and firmly combined with the formation of a good anti-corrosion coating, coating temperature up to 110 degrees. Diameter range of 108-1016
2PP Anticorrosion:
The second layer of PP anti-corrosion structure: the first layer of adhesive (AD), the second layer of polypropylene (PP), two kinds of materials into one layer with the same thickness of three PP.
China has not yet developed a 3PP coating industry standards, the processing of 3PP corrosion pipeline generally used in Germany DIN30678 "steel pipe polypropylene coating" standard. 3PP coating is mainly used to transport high temperature medium corrosion pipeline and used as the surface temperature is higher, longer sunshine in the desert area pipeline coating, so the surface temperature is higher, according to a longer time buried water, Gas transmission, oil pipelines have been more and more widely used.
Product specifications: Ф89mm-Ф1820mm, wall thickness 6mm-20mm.
Material: Q235B, Q345B, 10 # steel, 20 # steel, X42-X80 grade and so on.
Uses: Products are widely used in oil pipelines, natural gas pipelines, heating pipes, water pipes.
Implementation of standards: DIN30678 "steel pipe and pipe fittings polypropylene coating technical standards"
