| 摘要 |
PCT No. PCT/NO96/00251 Sec. 371 Date Apr. 27, 1998 Sec. 102(e) Date Apr. 27, 1998 PCT Filed Oct. 24, 1996 PCT Pub. No. WO97/15814 PCT Pub. Date May 1, 1997A device serves to enable detection of leakages in flange joints in pipelines. Between end faces (22, 24) adjacent, opposing flange pipe ends, a packer (30') has been disposed, the packer being adapted to bear sealingly against seat faces which said end faces (22, 24) exhibit. At each of the opposite side faces of the packer (30'), an annular groove (26', 28') has been formed, said annular grooves being closed and thereafter forming annular cavities when the joint has been established. Between at least one cavity (28') and the surroundings outside the pipeline (14, 16), a fluid connection (38') is established. The packer (30') is formed with a through-going hole (32') establishing fluid-communication between the two annular cavities (26', 28').
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