Inner corner 90° for Wichmann INSTAFIX ® BKI installation duct, four-sided, galvanized. The Wichmann INSTAFIX ® BKI installation duct is specially designed for installation in escape and rescue routes and is made from hot-dip galvanized sheet metal, stainless steel or optionally in various RAL colors. Thanks to the up to 95% thinner wall thickness compared to other ducts, the usable cross-section is significantly increased. This means that the Wichmann INSTAFIX ® BKI installation duct can be installed quickly and easily even in confined spaces. The Wichmann INSTAFIX ® BKI installation duct is supplied as an industrially prefabricated and functional component ready for installation. The Wichmann INSTAFIX ® BKI installation duct is classified for fire resistance classes I30 to I120 according to DIN 4102 and has a general type approval in Germany. Installation is carried out in accordance with the enclosed installation instructions or aBG Z-19.30-2524. System advantages: Protection of escape and rescue routes from the effects of cable fires. Active fire load encapsulation and prevention of fire spread thanks to innovative insulating layer former. Reduces consequential damage and costs of a cable fire to a minimum. Various designs possible: 4-, 3- and 2-sided from a size of 30 x 30 mm. Effortless and quick installation thanks to particularly slim, lightweight construction and tailor-made molded parts. Easy installation without connecting elements possible. Direct wall and ceiling mounting, installation below system floors or on support systems possible. Suspended support distance up to 2100 mm. With direct installation, distance between fastening points up to 500 mm. Precisely prefabricated duct elements are suitable even for difficult installation situations. Prefabricated molded parts available. Molded parts can also be created on site. Ideal for subsequent installation. Fully accessible thanks to removable cover. Can be 100% covered with cables and pipes. Possible cable load up to 34 kg/m with direct load on the duct floor. Thanks to dust-free installation, it is particularly suitable for sensitive installation scenarios such as hospitals, clean rooms or data centers.
| Property | Value |
| Angle: | 90 ° |
| Color: | gray |
| Surface: | strip-galvanized |
| Number of flammable sides: | 4 |
| Sheathing: | steel |
| Cover fastening: | screwing |
| Usable cross-section: | 44070 mm² |
| Partition walls possible: | yes |
| Fire resistance class I - installation duct: | 90 |
| External height: | 120 mm |
| External width: | 400 mm |
| Internal height: | 113 mm |
| Internal width: | 390 mm |
| Material of the insulation material: | other |
