GEBA Fire Protection Ceiling Seal AVR 200 DN200 # 32200

with a free cross-section, made of galvanized sheet steel, 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 free cross-section. General building authority approval 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 timber beam ceiling F90 B. 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 type of covering. 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, and for connecting individual ventilation units, steam extractors, or cooker hoods without their own fire protection requirements.