FIELD: pipelines.
SUBSTANCE: invention relates to corrosion tests, namely to a method for installing corrosion witness-samples in a pipeline to determine the corrosiveness of media under study. Objective is achieved by a method for installing corrosion witness-samples in a pipeline, comprising stopping the pipeline operation, bleeding pressure in the pipeline, installing cylindrical corrosion witness-samples in the cavity of the pipeline, according to the invention, the cylindrical corrosion witness-samples are first mounted in the interflange unit, which is then mounted between existing flanges on the pipeline, and before mounting the interflange unit, the flange joint fastening is loosened and the flanges are moved apart, then the paronite gaskets are installed between the interflange unit and the flanges and the flanges are tighten to each other using studs and nuts.
EFFECT: increased safety of installing of corrosion witness-samples in the pipeline by eliminating welding operations, as well as reduced metal capacity of the equipment necessary to install corrosion witness-samples and shorter installation time.
1 cl, 2 dwg
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