| 摘要 |
<p>A cap (10) comprising a female threading (11) matched with that (2) of a first element is made up onto the first male threaded element (1) of a component to be tested so as to compress a sealing ring (16) between metal surfaces (7, 15) of the first element and the cap, and a test pressure is established inside said component, the male element (1) having an annular lip (3) which is capable of deforming radially outwardly under the effect of said test pressure. Between the radially outward surface (6) of the lip (3) and the facing surface (19) of the cap, at the end of makeup there exists a clearance having a value (j) which has been selected sufficiently small so that, under the effect of the test pressure, the lip bears on said facing surface without undergoing plastic deformation. Application to tubular string accessories for hydrocarbon wells.</p> |
