Plastic coated composite steel pipe
Steel pipe polypropylene 3PP anticorrosion
2PP/3PP anticorrosive steel pipe
Material: Q235B, Q345B, 10# steel, 20# steel, X42-X80 grade
Standard: SY/T7041-2016, DIN30678
Performance advantages of anti-corrosion layer
The three-layer structure polyethylene anticorrosion layer combines the excellent properties of epoxy coating and extruded polyethylene anticorrosion layer, combining the interface characteristics and chemical resistance of epoxy coating with the mechanical protection characteristics of extruded polyethylene anticorrosion layer Combining other advantages, thus significantly improving their performance. Therefore, it is very superior as the outer protective layer of buried pipelines. According to relevant information, three-layer PE can make the life of buried pipelines reach 50 years. At present, it is regarded as the most advanced external anti-corrosion technology for pipelines in the world. In 3PE anticorrosion equipment, three-layer PE has been applied first in oil and gas systems. The Shaanxi-Beijing Natural Gas Pipeline and Kushan Oil Pipeline that have been built in my country, and the nearly 4,000-kilometer West-East Gas Pipeline of the project have adopted three-layer PE outer anti-corrosion coating. In the 3PE anti-corrosion equipment, the 67 kilometers high-pressure pipeline of Shaanxi Gas into Tianjin, the 30 kilometers high-pressure natural gas pipeline of the outer ring line, and the 122 kilometers of underground gas storage pipeline of the Shaanxi-Beijing line are also three-layer PE. It has become the direction of 3PE anti-corrosion equipment for the future development of pipeline outer anti-corrosion layer.
Products are widely used in oil pipelines, natural gas pipelines, heating pipelines, and water supply pipelines.
my country has not yet formulated a 3PP coating industry standard, and the processed 3PP anticorrosive pipeline generally adopts the German DIN30678 "Steel Pipe Polypropylene Coating" standard. 3PP coating is mainly used for anti-corrosion pipelines for transporting higher temperature media and as anti-corrosion layer for pipelines in desert areas with high surface temperature and long sunshine time. Therefore, areas with high surface temperature and long sunshine time are buried in water, It has been widely used in gas and oil pipelines.
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