GEBA Fire Protection Ceiling Seal AVR 100 DN100 # 32100

with a clear cross-section made of galvanized steel sheet, with a metallic quick-release fastener, corrosion-free and solder-free trigger device, intumescent material, enclosed by a smooth-walled plastic inner tube with a completely clear cross-section. General building authority approval from DIBt Berlin Z-41.3-686. Fire resistance class K90 - 18017. Installation under, in, or on the solid ceiling, alternatively under, in, or on the F90 B timber beam ceiling. Fastening only 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, specifically in central ventilation systems for supply and exhaust air, and for connecting individual ventilation units, fume cupboards, or extractor hoods without their own fire protection requirements.