GEBA Fire Protection Ceiling Seal AVR 140 DN140 # 32140

with a free cross-section made of galvanized steel, with a metallic quick-release fastener, corrosion- and solder-free release mechanism, intumescent material, enclosed by a smooth-walled plastic inner tube with a completely free cross-section. General building permit from DIBt Berlin Z-41.3-686. Fire resistance class K90 - 18017. Installation below, in, or on the solid ceiling, alternatively below, in, or on the F90 B timber beam ceiling. Fastening exclusively by mortar grouting without screws, dowels, or mortar anchors. No insulation required. Installation in classified shafts F30/L30 - F90/L90, minimum thickness 35 mm with any occupancy. For installation in ventilation systems according to DIN 18017-3 in steel ducts, e.g., spiral-seam ducts, specifically in central ventilation systems for supply and exhaust air, as well as for connecting individual ventilation units, fume hoods, or extractor hoods without their own fire protection requirements.