Manufacturer supplied anti-corrosion steel pipe 3pe anti-corrosion steel pipe reinforced grade 3pe anti-corrosion steel pipe

Description :

　　The 3PE anti-corrosion steel pipe structure three-layer polyethylene anti-corrosion coating (3PE) combines the excellent properties of fusion bonded epoxy powder coating and extruded polyethylene anti-corrosion coating. It combines the interface characteristics and chemical resistance of fusion bonded epoxy powder coating with the mechanical protection characteristics of extruded polyethylene anti-corrosion coating, thereby significantly improving their respective performance. Therefore, as an external protective layer for buried pipelines, it is very superior. According to relevant information, three-layer PE can extend the service life of buried pipelines to 50 years, and is currently considered an advanced external anti-corrosion technology for pipelines internationally. In China, three-layer PE has been first applied in the oil and gas system. The Shaanxi Beijing natural gas pipeline and the Kushan oil pipeline that have been built in China, as well as the nearly 4000 kilometers of key projects such as the West East Gas Pipeline, have all adopted a three-layer PE external anti-corrosion coating. In Tianjin, the 67 kilometer high-pressure pipeline from Shaanxi to Tianjin, the 30 kilometer high-pressure natural gas pipeline on the outer ring road, and the 122 kilometer underground gas storage pipeline on the Shaanxi Beijing line also use three-layer PE.

　　The reason for low water absorption per ton price of anti-corrosion steel pipe coated with plastic inside and outside 3PE is that the closed cell rate of 3PE foam is up to 92%. Low thermal conductivity and low water absorption, combined with high-density polyethylene or fiberglass shell with good anti-corrosion layer and surface waterproofing function, have greatly improved the overall heat dissipation of the heating pipeline by rotating the environment of the rigid trench laying heating pipeline "wet cotton jacket". The heat loss of the heating network is 2%, which is less than the overseas standard of 10%. 3. Anti corrosion, good insulation function, and long holding life. Because 3PE hard foam anti-corrosive coating is tightly bonded to the outer skin of the steel pipe, it can cut off the atmosphere and water penetration, and can play a low-grade anti-corrosion infection. At the same time, its foam pores are all closed, and its water absorption is very low. The high-density polyethylene shell and fiberglass shell both have poor anti-corrosion, insulation, and coagulation functions. Therefore, the outer layer of the task steel pipe is well influenced by the external atmosphere and water. As long as the water quality inside the pipeline is treated well, the control life can reach more than 50 years, which is 3-4 times longer than the rigid trench laying and overhead laying. 4. Pipeline anti-corrosion. Less land occupation, faster construction, and unfavorable environmental protection. The anti-corrosion of directly buried heating pipelines does not require the construction of large trenches. As long as the anti-corrosion pipes are buried in the dark, it greatly increases the land occupation of the project, increases the excavation volume by about 50%, and increases the construction and concrete volume by 90%. At the same time, the processing of anti-corrosion pipes and the excavation of trenches on site can shorten the construction period by more than 50% as long as the site is explored.

　　External 3PE anti-corrosion and internal epoxy powder anti-corrosion steel pipes (named after the straight line formed by the welding of the steel pipes), anti-corrosion insulation bent pipes, and polyurethane material insulation pipes still have a lot of room for development in China. External 3PE anti-corrosion and internal epoxy powder anti-corrosion steel pipes have not completely melted into one, and the powder generates an air ionosphere through high voltage static electricity at the nozzle. The anti-corrosion coatings for epoxy powder anti-corrosion steel pipes can be divided into the following types. This is precisely why polyurethane insulated buried pipes are used in heating projects in China. Buried heating pipes should be laid as far away from the roadway as possible, while adapting to low-temperature environments during construction. The linear expansion coefficient of large-diameter insulated steel pipes is very small, and the problem of anti-corrosion leakage is a prominent issue in engineering construction. The base materials for Group B are active monomers and catalysts. And add a guide bracket at each end of the compensator, fire protection: for the applicability of water supply pipelines for anti sprinkler and sprinkler systems, epoxy coal tar anti-corrosion straight seam steel pipes. This requires regulatory authorities to add more important aspects of energy conservation and environmental protection to the regulatory system. Below are the processing types of anti-corrosion and insulation steel pipes for external 3PE anti-corrosion and internal epoxy powder anti-corrosion. Greatly improving the service life of fire protection pipelines, anti-corrosion is divided into reinforced and ordinary levels, with high anti-corrosion performance. External 3PE anti-corrosion and internal epoxy powder anti-corrosion steel pipes are still among the low-cost steel pipes. They are processed by bonding steel and plastic layers with hot melt adhesive to ensure smooth heating for thousands of households. The concept refers to the use of standard single-layer fusion bonded epoxy powder as the base coating, internal and external coating of plastic pipes, epoxy resin, and metal surfaces with appropriate roughness. It can be used on a large scale, which is beneficial for environmental protection. Directly buried heating pipelines do not require the construction of large trenches. The external 3PE anti-corrosion and internal epoxy powder anti-corrosion steel pipes generate a metal soap coating, which improves the shielding effect on the environment due to high costs. The thickness of the graded structural membrane (mm) is used for waterproofing, prefabricated buried insulation pipes, and has been awarded the honorary title of building materials products by industry departments. It directly affects the structure of the project and the service life of building anti-corrosion. It can avoid cathodic shielding issues and be judged based on the results of anti-corrosion coating testing and evaluation.

　　The main function of the fusion bonded epoxy powder coating in the three-layer structure of the 3pe anti-corrosion steel pipe structure for circulating water is to form a continuous coating film, which is directly bonded to the surface of the steel pipe and has good chemical corrosion resistance and cathodic stripping resistance; Reacts with the active groups of the intermediate layer adhesive to form a chemical bond, ensuring that the overall anti-corrosion layer has good adhesion at higher temperatures. The intermediate layer is usually a copolymer adhesive, which is mainly composed of polyolefin. Currently, ethylene based copolymer adhesives are widely used. The polar functional groups of the copolymer adhesive can react with the epoxy groups of the fusion bonded epoxy powder coating to form hydrogen bonds or chemical bonds, forming a good bond between the intermediate layer and the bottom layer; The non-polar ethylene portion has a good affinity with the surface layer polyethylene, so the intermediate layer also has good bonding performance with the surface layer. Polyethylene three-layer structure protective layer, also known as three-layer PE (3PE), is an advanced anti-corrosion technology introduced from abroad in recent years.

AfterSalesService :

• 3PE anti-corrosion steel pipe