Damming system for damming door, wall and window openings as result of catastrophe or fire comprises U-bend having U-shaped side enclosed by plastic tubing surrounding two parallel bend-resistant plates

摘要

A damming system comprises a U-bend (2) having a U-shaped side (2a) enclosed by a plastic tubing (4) surrounding two parallel bend-resistant plates (3). The whole U-bend is enclosed by a further plastic tubing (5). Preferred System: The plates can be folded across their longitudinal extension. The outer tubing is bonded to its lower end (7). A central outlet opening (9) for an explosive receiving tube (8) is provided in the lower closure region.