| 摘要 |
1. Thermally insulated fitted modular element for fluid line, to form a conduit, namely for fume exhaust, designed to be placed along a support (32) on which it is fixed, the said modular element being constituted of a steel sheet external ferrule (2) and a steel sheet internal ferrule (3) between which an insulating material (4) is placed, characterized by the fact that the section of the sheet constituting said ferrules (2&3), cross-section according to a plane in the axis of the ferrules, is identical for both ferrules (2&3), said section comprising an external bead (5 or 9) at one end and a fitting necking (7 or 10) at the other end, the said section constituting the external ferrule (2) being reversed according a normal plane to the line axis with regard to said profile constituting the internal ferrule (3). |
