FIELD: oil and gas industry.
SUBSTANCE: claimed device comprises the tee 1 with flange 4 to support the body of appliance 13 for cutting the pipeline wall by the cutter 12. Said body is equipped with the flange to be coupled with the tee flange via seal gasket 16. The cutter is fed at revolution of the cutter shaft 7. At simultaneous revolution of shaft 7 and screw 23 of feed unit 10 pipeline is bored. At the displacement of thrust washer 11, determined is the distance made by the cutter to termination of the process.
EFFECT: higher reliability and safety of connection to operating pipe without pressure drop.
3 cl, 7 dwg
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| FITTING | 2023 |
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