GEBA Fire Protection Ceiling Seal AVR 160 DN160 # 32160

with a free cross-section of galvanized steel, with a metallic quick-release fastener, corrosion- 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 F90 B timber beam ceiling. Fastening only by mortar grout 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 ducts, 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.