Price List of 3pe Anti corrosion Steel Pipe

Description :

　　3PE pipeline has many applications for anti-corrosion, including underground water supply and drainage, underground spraying, positive and negative pressure ventilation, underground gas drainage, fire sprinkler and other pipe networks in coal mines. Liaoning has abundant coal resources, and ensuring safe production is of paramount importance. The safety production of Dandong coal mine in Liaoning Province, 3PE anti-corrosion of gas drainage pipeline is the key! 3PE anti-corrosion is currently an extremely high-performance gas drainage pipeline, playing a crucial role in ensuring coal mine safety! 3PE is also applicable to the transportation pipelines for process water waste and return water in thermal power plants. The applicability of water supply pipelines for anti spray and sprinkler systems. Cable protection sleeves for power, communication, highways, etc. Suitable for high-rise building water supply, heating network, water supply engineering, gas transmission, buried water transmission and other pipelines. Pipelines used for transporting corrosive media in industries such as petroleum transportation, chemical manufacturing, and printing and dyeing. Anti corrosion engineering for sewage treatment discharge pipes, sewage pipes, and biological tanks. Agricultural irrigation pipes, deep well pipes, drainage pipes, and other networks are used for various purposes.

　　The current development status of the 3PE anti-corrosion steel pipe industry in China is quite good. The 3PE anti-corrosion steel pipe, which we are familiar with in the anti-corrosion industry, also plays a significant role in the industry. Today, we will analyze and introduce the relevant knowledge of 3PE anti-corrosion steel pipe, hoping to be helpful for those who are not yet familiar with its functions in the industry. The base materials of 3PE anti-corrosion steel pipe include seamless steel pipe, spiral steel pipe, and straight seam steel pipe. The three-layer polyethylene (3PE) anti-corrosion coating has been widely used in the petroleum pipeline industry due to its excellent corrosion resistance, water vapor permeability resistance, and mechanical properties. The anti-corrosion coating of 3PE anti-corrosion steel pipes is crucial for the service life of buried pipelines. For pipelines of the same material, some may not corrode after being buried underground for decades, while others may leak within a few years. It's because they use different external anti-corrosion coatings. 3PE anti-corrosion steel pipes have convenient connection and various methods during the construction process. The pipeline itself has the characteristics of light body, easy transfer, easy welding, and few welding joints. When the pipeline is long, PE pipe trenches can be laid using coiled pipes, and when construction conditions are limited, electric fusion welding can also be used. The PE pipe itself uses fusion splicing to connect and package the interface materials, completing the integration of the joint and the pipe with good sealing performance. Compared with the pipe body, its interface has higher tensile strength and explosive strength, which can effectively resist the circumferential stress and axial stress caused by internal pressure. Therefore, there is no risk of leakage caused by joint distortion in PE pipes, and the sealing function is appropriately excellent. 3PE anti-corrosion steel pipe products have good quality, reasonable prices, and a wide range of applications.

　　3PE anti-corrosion welded pipes are used in different working environments. In order to slow down or prevent the corrosion and deterioration of the pipeline under the chemical and electrochemical action of the external medium or the metabolic activity of microorganisms, 2 or 3 layers of polyethylene (3PE) are coated on its outer wall to achieve pipeline anti-corrosion. The service life of 3PE anti-corrosion pipes is extended by 3-5 times. The bottom layer is fusion bonded epoxy (≥ 80 μ m); The middle layer is adhesive (170-250 μ m); The surface layer is extruded polyethylene (about 2mm). The total thickness of the protective layer is about 1.8-3.7mm. In the three-layer structure, the main function of the fusion bonded epoxy powder coating 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. The main function of polyethylene surface layer is to provide mechanical protection and anti-corrosion, which is the same as the traditional two-layer structure polyethylene anti-corrosion layer.

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