OBO Bettermann
32 | EN
Direct mounting on the ceiling, wall or floor
5 6 2
Mounting an external corner
Do not mount ducts at a 90° angle, as shown in Fig. 32, so that they
overlap. The overlapping of the external corner (BSKM-AE 0407, BSKM-
AW 0711 or BSKM-AE 1025) ensures the necessary tightness.
• Attach the external corner and fix it, e.g. with four fire protection bolt
ties (see “4.1 Fastening material” on page 17).
BSKM-AE 0407
BSKM-AE 0711
BSKM-AE 1025
Fig 32:
Mounting an external corner
5 6 3
Mounting an internal corner
Do not mount ducts at a 90° angle, as shown in Fig. 33, so that they
overlap. The overlapping of the internal corner (BSKM-IE 0407, BSKM-IE
0711 or BSKM-IE 1025) ensures the necessary tightness.
• Attach the internal corner and fix it, e.g. with four fire protection bolt
ties (see “4.1 Fastening material” on page 17).
BSKM-IE 0407
BSKM-IE 0711
BSKM-IE 1025
Fig 33:
Mounting an internal corner
