摘要 |
The invention relates to a sealing device constituted by a round seal (12), that is to say a seal having a non-planar outer surface, and by a flat seal (3) which are contiguous, characterised in that, on either side of the round seal (12) and in the area of the flat seal (3), projects a planar lug (5a, 10a ; 5b, 10b) moulded in a single piece with the seat body (12), each of the said two lugs (5a, 10a ; 5b, 10b) fitting into a cut out portion of a matching shape provided in the flat seal (3), so as to locate the interface between the round seal (12) and the flat seal (3) entirely in the plane of the latter.
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