| 摘要 |
An apparatus for hydrostatically testing the pipe threads on the end of a length of pipe onto which a coupling is adapted comprising a cylindrical body member that is inserted inside the end of the pipe and having attached thereto a hydraulically activated pressure resistant first seal that contacts a plurality of second seals arranged annularly of the cylindrical body member between its flange and the cylindrical body whereby the second annular seals are forced outwardly and into contact with the inner surface of the pipe being tested in order to seal off the interior of the pipe so as to isolate test fluid introduced under pressure to the area surrounding the connection between the pipe and the cylindrical body member, a cylindrical nipple like pressure resistant third seal arranged at the opposite end of the cylindrical body member that is screwed into the exposed interior threads of the coupling, a fluid passageway that is arranged in the cylindrical body member for introducing a testing fluid under pressure into the annulus between the hydraulically activated first seal and the cylindrical nipple like plug.
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