Thermal insulation tube
The utility model relates to a new heat preservation pipe used for transporting the liquid. The heat preservation pipe has an inorganic rockwool layer between the alumina silicate felt layer and the aluminum foil paper layer connected on the outside of the transportation inner pipe. A polyurethane f...
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | The utility model relates to a new heat preservation pipe used for transporting the liquid. The heat preservation pipe has an inorganic rockwool layer between the alumina silicate felt layer and the aluminum foil paper layer connected on the outside of the transportation inner pipe. A polyurethane foam layer is arranged between the aluminum foil paper layer and the protecting layer, and the protecting layer is a waterproof layer made by the hard material, and the waterproof layer is the glass steel or plastic pipe. |
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