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"Shantui polyurethane insulation steel pipe DN450/478 rigid polyurethane foam insulation pipe" parameter description
| In stock: | No | Authentication: | ISO9001-2000 |
| Product Category: | Insulation Pipe | Material: | Polyurethane |
| Pattern: | Microporous | Shape: | Surface Convex |
| Scope of application: | Residential district heating | Thermal conductivity (room temperature): | 0.03W/（m·k） |
| Brand: | Xinlong Risheng | Use temperature: | Below 200 degrees Celsius |
| Core: | Seamless Steel Pipe | Compressive Strength: | 262 |
| Bending Strength: | 190 | Elongation at break: | 19 |
| Low temperature bending: | 350 | Grade: | GB |
| Model: | Dn150/165 | Specifications: | GB/t29047-2012 |
| Trademark: | Xinjinlong | Packaging: | none |
| Patent Classification: | none | Patent Number: | none |
| Density: | 60 | Thermal conductivity: | 0.0333 |
| Stretch: | 19 | Yield: | 268568 |
Detailed introduction of "Shantui polyurethane insulation steel pipe DN450/478 rigid polyurethane foam insulation pipe"
Shanwei Polyurethane Insulation Steel Pipe DN450/478 Rigid Polyurethane Foam Insulation Pipe 0.013-0.03kcal/m·h·oC, which is much lower than other commonly used pipe insulation materials in the past, and the insulation effect is increased by 4~9 times . Furthermore, its water absorption rate is very low, about 0.2kg/m2. The reason for the low water absorption is because the closed cell rate of polyurethane foam is as high as about 92%. Low thermal conductivity and low water absorption rate, coupled with thermal insulation layer and high-density poly or FRP protective shell with good waterproof performance outside, has changed the situation of "wearing wet cotton jacket" in traditional trench laying heating pipes, and greatly reduced the overall size of heating pipes. Heat loss, the heat loss of the heat network is 2%, which is less than the standard requirement of 10%. 3. Anti-corrosion, good edge performance and long service life. The high temperature prefabricated direct buried insulation pipe can play a good anti-corrosion effect because the polyurethane rigid foam insulation layer is tightly bonded to the outer skin of the steel pipe, which prevents the infiltration of air and water. At the same time, its foam cells are closed, and the water absorption is very small. High-density poly shell and glass fiber reinforced plastic shell have good anti-corrosion, edge and mechanical properties. Therefore, the outer skin of the working steel pipe is difficult to be eroded by the outside air and water. As long as the internal water quality of the pipeline is well treated, according to foreign information, the service life of high temperature prefabricated direct buried insulation pipes can reach more than 50 years, which is 3 to 4 times longer than that of traditional trench laying and overhead laying. 4. Less land occupation and faster construction, which is beneficial to environmental protection and reduces construction disturbance. Directly buried heating pipes do not need to build huge trenches, only need to bury the insulation pipes underground, thus greatly reducing the land occupation of the project, reducing the amount of earthwork excavation by more than 50%, and reducing the amount of civil masonry and concrete by 90%. At the same time, the processing of the insulation pipe and the on-site trenching are carried out in parallel, and only on-site joints are required, which can greatly shorten the construction period. Since the transportation of bricks, cement, sand and gravel, residual soil, etc. is reduced, the amount of vehicle tail discharge, dust and noise emissions during the construction process is reduced, thereby protecting the environment.
