| 摘要 |
A system for sealing a space between an inner wall of a tubular opening and at least one tube or duct at least partly received in the opening, wherein the system comprises at least two segmental longitudinal parts (1) for forming a sealing plug which can be received in the said space, wherein the longitudinal parts are each provided with an outside (2) provided with a number of outer ribs (3) for realizing, in use, contact surfaces closed upon themselves between the sealing plug and the inner wall of the opening, and wherein, further, each of the longitudinal parts (1) is provided with an outer collar (9) intended to be placed against an outer edge of the opening in use, and wherein, further, the outer ribs (3) each substantially have the shape of a sawtooth with rising surface and falling surface (24), the falling surface is provided with two parts (25,26), wherein a meeting (27) of the two parts comprises an inwardly directed bend. |
