Steel casing (steel jacket) laying technology is a waterproof, leakproof laying of new technologies, impermeability, compressive and fully enclosed, is a major breakthrough Buried technology used in areas with high groundwater levels. It is a combination of the transmission medium pipe, pipe corrosion and superfine wool coat between the pipe and the jacket padding made of steel, but also can be used graphite, calcium silicate tiles shell filled with polyurethane foam and composite. One is the transmission medium pipe, pipe corrosion and superfine wool coat between the pipe and the jacket filled with a combination of steel, also can be graphite, calcium silicate tiles shell filled with polyurethane foam and composite. Steel casing (steel jacket) laying technology is a waterproof, leakproof laying of new technologies, impermeability, compressive and fully enclosed, is a major breakthrough Buried technology used in areas with high groundwater levels. The primary issue of the protection tube is buried pipes tight waterproof reliability, in addition to have good mechanical strength, high strength steel casing due to the use of welded connections, waterproof sealing performance reliability is very high, in addition, its high temperature performance is Other outer protective tube can not be compared. In areas of high groundwater levels, to ensure groundwater does not affect the normal operation of the buried steam pipe, the outer protective layer is preferably made of sturdy, airtight steel shell. An anti-corrosion layer: outer steel to avoid corrosion protection of steel corrosion and prolong the service life of steel. 2 outer casing pipe: to protect groundwater from erosion of the insulation layer, supporting the work of the tube and can withstand external loads, pipe work guaranteed to work. Polyurethane foam layer 3: to ensure medium temperature, the outer protective tube surface to ensure constant temperature. 4 barrier, reflective layer: to ensure that organic foam material does not enter the high-temperature inorganic hard layer; reflective layer high-temperature part of the heat. Hard inorganic insulation layer 5: heat, temperature and to ensure the interface between the organic insulating layer, the foam is not guaranteed to be carbonized. 6 drag reduction layers: thermal expansion and contraction pipe work to ensure freedom of movement. 7 working pipe: to ensure the normal flow of the transmission medium. Product Structure: Buried steel jacket pipe insulation pipe work from the inside, the outer protective pipe and intermediate insulation layer. Work coated steel by sandblasting rust layers. Insulation of high temperature fiber carpets, tiles and lightweight porous calcium silicate insulation polyurethane foam composition. After sandblasting steel jacket for six wound fiberglass and resin coating. Steel jacket steam pipe insulation is a combination of a transmission medium steel, corrosion between steel and steel pipe filled with superfine wool coat steel, but also can be used graphite, calcium silicate tiles and filled with polyurethane foam shell composite and percent. Steel casing (steel jacket) laying technology is a waterproof, leakproof laying of new technologies, impermeability, compressive and fully enclosed, is a major breakthrough Buried technology used in areas with high groundwater levels.