FIELD: construction.
SUBSTANCE: invention relates to devices for protection of pipes used for manufacture of major pipelines. A plug is made for sealing of at least the pipe edge subject to the influence of corrosion. The plug comprises an inner cover with an inner shell made for a contact with an inner side of the pipe, which has a protection element provided at least for a partial closure of an inner cross section of the pipe not closed with the inner shell. The plug is equipped with a record medium made with a possibility of contactless reading and/or contactless recording. In addition, the invention relates to the pipe with the corresponding plug, as well as to the system for testing the pipes with respective plugs.
EFFECT: protection of pipes against pollution, corrosion, possibility to identify remotely the pipe among the other pipes.
25 cl, 5 dwg
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|
SU1402047A1 |
