<p>Device with valve function which can be brought into and out of a pipeline and parked in the same. The device comprises a channel for throughflowing fluid, a valve (2) which is medium controlled and/or remote-controlled, a parking brake/packer seal unit (9) which with limited force can be brought to bear against the wall of the pipeline, a cylindrical wire anchor (1) with an external diameter which is slightly lesser than the internal diameter of the pipeline and can be brought into pressure contact with the pipeline.</p>
申请公布号
WO8800313(A1)
申请公布日期
1988.01.14
申请号
WO1987NO00054
申请日期
1987.07.08
申请人
DEN NORSKE STATS OLJESELSKAP A.S
发明人
JOHANSEN, TROND, V.;RUCH, OLA;NAESS, LUDVIG;KRISTJANSSON, K., P.;UTENGEN, S., F.