Drain, for floors and roofs, has a unit inserted into the drain hole for connection to the drainpipe with a horizontal closure plate with slits to cover the gap between the unit and the wall of the opening

摘要

The drainage unit, for insertion into a floor (2) or roof opening, carries water into a lower drainpipe through a lower pipe connection (4) and with a holder (3) to take an inserted drainage pot. A closure plate (11), with a polygon contour, is inserted with the unit into the opening, to extend horizontally from its support surface (5) and cover the gap between the unit and the wall of the opening to prevent water seeping through. The plate has slits at the outer zone so that its contour can be pressed together for insertion The under side of the unit is coated with a fire prevention mass (6).