Introduction of 3LPE Coated Line Pipe
Introduction
The base materials of 3LPE Coated Line Pipe include seamless steel pipes, spiral welded steel pipes, and straight seam welded steel pipes. Three-layer polyethylene (3LPE) anti-corrosion coatings are widely used in the oil pipeline industry for their good corrosion resistance, water vapor permeability resistance, and mechanical properties. 3LPE anti-corrosion coatings are crucial to the service life of buried pipelines. Some pipelines of the same material are buried underground for decades without corrosion, while others leak in a few years. The reason is that they use different coatings.
Structure of 3LPE Coated Line Pipe
3PE anti-corrosion coatings generally consist of three layers: the first layer is epoxy powder (FBE) >100um, the second layer is adhesive (AD) 170~250um, and the third layer is high-density polyethylene (HDPE) 1.8-3.7mm. In actual operation, the three materials are mixed and fused, and processed to make them firmly bonded to the steel pipe to form an excellent anti-corrosion coating. The processing methods are generally divided into two types: winding type and ring die sleeve type.
3LPE anti-corrosion steel pipe coating (three-layer polyethylene anti-corrosion coating) is a new type of anti-corrosion steel pipe coating that cleverly combines the European 2PE anti-corrosion coating with the FBE coating widely used in North America. It has been recognized and used internationally for more than ten years.
The first layer of 3LPE anti-corrosion steel pipe is epoxy powder anti-corrosion coating, the middle layer is copolymer adhesive with branched functional groups, and the surface layer is high-density polyethylene anti-corrosion coating.
3LPE anti-corrosion coating combines the high impermeability and mechanical properties of epoxy resin and polyethylene. So far, it has been recognized as the best anti-corrosion coating with the best performance in the world and has been used in many projects.
Advantages of 3LPE Coated Line Pipe
Ordinary steel pipes will suffer severe corrosion in harsh use environments, thereby reducing the service life of steel pipes. The service life of anti-corrosion and thermal insulation steel pipes is also relatively long, generally about 30-50 years and correct installation and use can also reduce the maintenance cost of the pipeline network. Anti-corrosion and thermal insulation steel pipes can also be equipped with an alarm system to automatically detect pipeline network leakage faults, accurately grasp the fault location, and automatically alarm.
3LPE anti-corrosion and heat-insulating steel pipes have good heat preservation performance, and the heat loss is only 25% of that of traditional pipes. Long-term operation can save a lot of resources and significantly reduce energy costs. At the same time, it still has strong waterproof and corrosion resistance. It can be directly buried underground or in water without setting up a separate trench, and the construction is also simple, quick, and comprehensive. The cost is also relatively low, and it has good corrosion resistance and impact resistance under low-temperature conditions, and can also be directly buried in frozen soil.
Application of 3LPE Coated Line Pipe
For 3PE anti-corrosion steel pipes, many people only know one thing but not the other. Its role is really wide-ranging, suitable for underground water supply and drainage, underground spraying, positive and negative pressure ventilation, gas extraction, fire sprinkler,s, and other pipe networks. Waste slag and return water transportation pipelines for process water in thermal power plants. It has excellent applicability for water supply pipelines of anti-spraying and water spraying systems. Cable protection casings for power, communications, roads, etc. It is suitable for high-rise building water supply, thermal power pipe networks, water plants, gas transmission, buried water transmission, and other pipelines. Oil pipelines, chemical and pharmaceutical industries, printing and dyeing industries, sewage treatment discharge pipes, sewage pipes, and biological pool anti-corrosion projects. It can be said that 3LPE anti-corrosion steel pipes are indispensable in the current application and construction of agricultural irrigation pipes, deep well pipes, drainage pipes, and other pipe networks. I believe that through the extension of technology, more brilliant achievements will be made in the future.
If you need any kind of anticorrosion coating coated steel pipes such as 3LPE /FBE /3LPP/LE/International Brand Paints (AkzoNobel/Hempel/3M/Jotun) coated steel pipes, etc., please feel free to reach out to [email protected].
