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Product Specification Table
Steel pipe dia.:500-1520mm,
Foaming thickness(mm):30-100mm,
HDPE Jacket thickness:3-10mm
The "polyurethane sprayed polyethylene wrapped prefabricated buried insulation pipe" consists of a working steel pipe, a sprayed polyurethane insulation layer, and an extruded polyethylene outer protective layer. The thickness of the insulation layer and the outer protective layer can be adjusted within a certain range as needed during production. Quantitative production can be carried out based on the parameters of the medium used in centralized heating and cooling, as well as the required insulation layer thickness for actual heat dissipation losses, to meet the needs of different projects.
Advantages of spray coating and winding process polyurethane insulation pipe products
1. Improved the mechanical properties of the outer protective tube.
2. Reduced the wall thickness of the outer protective tube.
3. Reduced the water absorption rate of the insulation layer.
4. Improved the closed cell rate of the insulation layer.
5. Reduced the eccentricity of the insulation pipe axis.
6. Improved the uniformity of the overall insulation layer density of the pipeline.
7. Improved the compressive strength of the insulation layer.
8. Reduce the thermal conductivity of the insulation layer and minimize energy loss.
Production process flow chart
Steel pipe External shot blasting ----> PU foam spraying----> PE film wrapping----> water cooling---->cutting down pipeline---->trim end of pipe---->printing mark&loading down finished pipe---->sealing end of pipe
Main equipment
External shot blasting and rust removal operation line
Chuck type spraying operation line
PU Thermal insulation layer winding production line
Delivery
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