| 摘要 |
1. A pipe joint, in particular for oil pipes, of the type comprising a male element (4) and a female element (5) with corresponding threads (6a, 7a), the sealing being achieved at the end of the male element within the interior of the female element, characterized by the fact that in the vicinity of its end the female element comprises a concave frusto-conical surface (10b), in that the male element comprises a convex frusto-conical surface (10a) facing and situated at a given distance from said concave frusto-conical surface (10b) of the female element, and in that an annular blocking element (12) is interposed between the two assembled tubes in the vicinity of the end of the female element for protecting the interior of the joint from the effects of erosion and/or corrosion. |
