Many people do not understand anti-corrosion insulated pipelines and are unclear about their uses and performance. First, anti-corrosion insulated pipelines can be used to supply heat and can also be used to convey hot oil. Second, anti-corrosion insulated pipelines come in many types, such as steel-in-steel composite insulated pipelines and PU Insulated Pipe pipes, etc., and different types of anti-corrosion insulated pipe also have different characteristics.

　　One question is the use of anti-corrosion insulated pipe in the industry. This has been discussed before. In general, anti-corrosion insulated pipe is suitable for conveying various media in the range of −50°C to 150°C, and is widely used in district heating, cooling, and hot-oil transmission, as well as thermal insulation and cold-insulation projects in greenhouses, cold storage, coal mines, petroleum, and chemical industries. It is also used in thermal insulation projects in aerospace, the military, central air-conditioning, and municipal pipelines.

　　The second common question concerns the classification of anti-corrosion insulated pipelines. They are divided into steel-in-steel composite insulated pipe and PU insulated pipe, and within these broad categories there are further subdivisions. Steel-in-steel composite insulated pipe includes internally sliding and externally sliding types. The internally sliding insulation structure consists of the carrier pipe, aluminum silicate, a friction-reducing layer, microporous calcium silicate, a thermal barrier, stainless-steel fastening bands, an aluminum-foil reflective layer, a PU protective layer, an outer steel jacket, and an outer anti-corrosion coating. The externally sliding insulation structure consists of the carrier pipe, a glass-wool thermal insulation layer, an aluminum-foil reflective layer, stainless-steel fastening bands, sliding guide supports, an air insulation layer, an outer steel jacket, and an outer anti-corrosion coating.