| 摘要 |
<p>An annular sealing device, especially for valves and taps, of the type comprising at least two seal structures, and a rigid annular collar arranged between the said seal structures, is fitted into an annular housing, the bottom of which is shaped in order to receive the first seal structure, the collar being clamped radially on the second seal structure. The first seal structure is shaped in such a way as to have an elastically deformable cross-section, and the collar (2) is mounted concentrically with the first seal structure (1) by deforming the cross-section of the latter elastically over its entire periphery, in order to effect, under the influence of the elastic deformation, a self-centering (4) during the closing, and sealing between the said collar (2) and the first seal structure (1). The invention finds application, in particular, for valves, in particular of the butterfly type, and taps. <IMAGE></p> |
