MOUNTING METHOD OF FIRE-PREVENTION AND SMOKE DAMPER IN THE WALL, AND FIRE-PREVENTION AND SMOKE DAMPER

摘要

1. Fire and smoke damper (10), characterized in that it contains! a) the form (11)! b) pivoting the closing flap (13) around which the casing or tube (12) and the casing or tube (12) is inserted into the through hole (E) in the lower portion (11a1) the casting mold (11). ! 2. The damper according to claim 1, characterized in that the casting mold (11) comprises a bottom (11a1) and side walls (11a2, 11a3, 11a4 and 11a5), defining an inner space (A) for a heat-insulating mass (m1), and the that the fastening screws (14a1, 14a2, 14a3, ...) comprises a wall through the bottom (11a5) the casting mold (11), attaching the casting form to the firewall (S), and in that the mass (m1) is insulating or stopping flame weight that when casting a liquid state and hardens after the casting. ! 3. The damper according to claim 1 or 2, characterized in that the surrounding section (12a) of the casing (12) is arranged intumescent seal (20) located in the through hole (D1), made in the firewall (S), and filling the space between the casing ( 12) and the inner surface (D1 ') of the through hole (D1) at swelling in case of fire. ! 4. The damper according to claim 2, characterized in that the flap in the bottom (11a1), the casting mold comprises a hole (e1, e2, e3 ...), through which the weight (m1) can be brought into contact with the surface (S ') to the wall sealing the gap between the mold (11) and the wall (S) via the mass (m1). ! 5. The damper according to claim 2, characterized in that the thickness of the walls of the mold (11) is in the preferred range of 1 mm or less and a maximum height or width of the mold is 20 to 250 mm above the size of the duct, and in that the form ( 11) has a rectangular or square cross-section shape and depth of preferably less than 100 mm. ! 6. damper