FIELD: metallurgy.
SUBSTANCE: invention relates to metal deformation process and can be used for cutting and changing of pipes sections pipelines. Device contains case, fixation unit of tension bar or rope and accessory for destruction of old pipeline. Case is implemented with front stage, adapter and back stage for location on its butt end of leading end of new pipeline. Accessory for destruction of old pipeline is implemented in the form of cutter with nibbed blade, inclined into the side of device working range and installed at front stage and case adapter.
EFFECT: reliability of works increasing at trenchless replacement of destroyed sections of metallic pipelines.
5 cl, 11 dwg
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