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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 |
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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