Seal around pipe passing through concrete wall in ground water areas

摘要

A seal around pipes or cable ducts passing through concrete walls in ground water areas comprises a one-piece profiled seal of thermoplastic or elastomer forming a hydrodynamic sealing collar (14) around the pipe (13), an expanding part (16) near the passage outlet (12) and a clamping flange (17) at right angles to the pipe axis (X) forming a water-tight joint with a sealing strip (20) against the outer wall face.