INSULATION FOR VENTILATION DUCT PASSING THROUGH OPENING IN WALL OR CEILING Russian patent published in 2012 - IPC F24F13/02 F24F7/00 F16L5/04 

FIELD: ventilation.

SUBSTANCE: device for isolation of the pipeline (2), especially the pipeline for air conditioning or ventilation pipe passing through a hole in the wall (1) or the ceiling or that sort of thing, where the gap between the pipeline (2) and the hole is filled with packing material (12), and an insulating material (3) is placed outside around the pipeline (2), with an insulating material (3) is at least partially in contact with a hole in its end surface, and the heat-resistant adhesive (11) is applied to the end surface of the insulating material, preferably for the whole surface in some parts, with the packing material (12) at the end facing the adhesive 11 is covered with fire-protective foam-generating agent (13), and at least a part of the surface of the insulating material (3) is glued with heat-resistant adhesive (11) to the packing material covered with foam-generating agent.

EFFECT: simplified construction and improved reliability of insulation of the pipeline in the area of holes in the wall from the temperature increase, due to providing long-term fire-resistance and tightness against gas leak.

9 cl, 4 dwg