| 摘要 |
For instance a well may comprise a joint that includes a connecting element (5) that is able to turn in relation to a fitting (4) of the well, for instance. In connection with the joint there is a first curved interior sealing surface (18) and a second curved interior sealing surface (19). The first curved interior sealing surface (18) can be arranged in the fitting (4) and the second curved interior sealing surface (19) can be arranged in connection with the connecting element (5) that is able to turn in relation to the connecting fitting (4), whereby the curved interior sealing surfaces (18, 19) are arranged in separate elements in the joint. The curved sealing surfaces (18, 19) can be flatter than a spherical surface such that a radius of curvature (R 1 , R 2 ) of the curved sealing surfaces (18, 19) is longer than the distance of each sealing surface point from its centre axis. |
