| 摘要 |
<p>The air feed and outlet duct for ventilation installations is assembled from individual channel pipe sections with plastis sides. On the end areas of the pipe sections, is a sleeve (10) of sheet metal and which is releasably connected to the sleeve (10) of the adjacent channel section via flange parts (11). The flange part (11) are pushed on to the walls of the sleeve (10), and are assembled from the individual parts by means of corner pieces (12). These corner pieces can be releasably connected to the adjoining sleeve (10). The sleeves (10) are fixed on the channel pipe sections, and both sleeves (10) of a channel pipe section are supported against each other by stiffening rails (5, 6, 7).</p> |
