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Structure | Steel pipe-- insulation layer--steel jacket pipe |
Pre-insulated pipe standard | 1. CJ/T200-2004 2. CJ/T246-2007 3. CJ/T104-2014 |
Steel pipe standard and material | 1. GB 20#, Q235B 2. ASTM A53 GrB 3. API Spec 5L 16Mn, X42-X80 |
Steel pipe process | 1. Seamless, 2. Spiral steel pipe( SAW) 3. Straight steel pipe(ERW) |
Insulation layer of external sliding type | Fiberglass wool or rock wool |
Insulation layer of internal sliding type | 1. Calcium silicate insulation material 2. Polyurethane insulation material |
Application | 1. Steam 2. Hot oil 3. Hot material |
Laying mode | Mainly used for direct buried, and can be used in trenches. |
Specification | DN57-1020mm(1 inch-64 inch) |
Medium temperature | 150-350℃ |
Medium pressure | Less than 2.5MPa |
Advantages | 1. The heat-insulating material has the advantages of light, durability, excellent heat preservation performance, low heat consumption and maximum utilization of heat energy. 2. Vacuum extraction technology can be used to effectively prevent the corrosion of internal and external steel pipes. 3. Special material heat insulation is adopted between the sliding bracket and the steel pipe to effectively solve the heat bridge problem in the pipe network, and the heat loss of the pipeline is reduced |
Related products | 1. Joint materials(steel sleeve, insulation material) 2. Fittings(tee, elbow, reducer,adapter) |
Main Technical Parameter of High Temperature Resistant Glass wool | ||||
Item | Unit | Index | ||
Density | kg/m3 | ≥48 | ||
Average diameter of fiber | mm | ≤8 | ||
Shot content | % | ≥ 0.3 | ||
Water content | % | <1 | ||
Moisture rate | % | ≤2 | ||
Thermal conductivity | W/M.k | ≥ 0.043 | ||
Max working temperature | ℃ | 454 | ||


















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