Plastic-coated composite steel pipes, also known as plastic-coated pipes, steel-plastic composite pipes, and plastic-coated steel pipes, are based on steel pipes. A layer of plastic anti-corrosion layer or plastic anti-corrosion layer is fused to the inner surface of the steel pipe (bottom pipe) through spraying, rolling, dipping, and suction processes. A steel-plastic composite steel pipe with a plastic anti-corrosion layer fused to the inner and outer surfaces.
It has excellent corrosion resistance and relatively small friction resistance. Epoxy resin-coated steel pipes are suitable for the transportation of water supply and drainage, seawater, warm water, oil, gas and other media. Polyvinyl chloride plastic-coated steel pipes are suitable for the transportation of drainage, seawater, oil, gas and other media.
Plastic-coated composite pipes are made by melting a layer of polyethylene (PE) resin, ethylene-acrylic acid copolymer (EAA), epoxy (EP) powder, non-toxic polypropylene (PP) or Steel-plastic composite pipes composed of non-toxic polyvinyl chloride (PVC) and other organic substances not only have the advantages of high strength, easy connection, and resistance to water flow impact of steel pipes, but also overcome the problem that steel pipes are prone to corrosion, pollution, scaling and corrosion when exposed to water. Plastic pipes have shortcomings such as low strength and poor fire protection performance, and their design life can reach 50 years. The main specifications are Φ15-Φ300.
