FIELD: performance of repair and restoration jobs. SUBSTANCE: sealing unit is made in form of sleeve manufactured from porous material and spirally wound on the outer surface of the coil. After the device has been placed in the section of the pipe line to be blanked off, sleeve is filled with expanding and hardening composition. EFFECT: enhanced reliability. 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| COUPLING UNIT FOR SUBMERSIBLE VEHICLE | 2000 |
|
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| DEVICE FOR CLOSING PIPELINE FILLED WITH OIL PRODUCT | 2004 |
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|
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| PLUG PACKER DRILLABLE | 2022 |
|
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| LENGTHWISE REINFORCED HARDENED ON-SITE LINING AND REINFORCED COATING | 2006 |
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| SEALING ELEMENT TO HYDRAULIC INFLATABLE PACKER AND METHOD OF ITS MANUFACTURING | 2018 |
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| DEVICE FOR TIGHT CLOSING OF INNER CAVITY OF PIPELINE | 2013 |
|
RU2545114C1 |
