FIELD: machine building.
SUBSTANCE: method involves arrangement at connection point with overlap of end sections of pipe coating of inner protective sleeve and weld joint of pipes. Sleeve has corrosion resistant design and ends of its external surface are provided with O-rings located in annular grooves and made from elastic material, for example hydrophilic rubber, expanding during contact with water. Rings made from porous elastic material, which are saturated with water, are arranged tightly to O-rings on one side or both sides. Rings from porous elastic material can be located between two O-rings.
EFFECT: reducing material costs and labour intensity for implementation of the method.
3 cl, 3 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PIPELINE PROTECTION AGAINST CORROSION | 2002 |
|
RU2229653C2 |
| METHOD OF CONNECTION OF STEEL PIPES PROVIDED WITH INTERNAL PLASTIC LINING | 2002 |
|
RU2225562C1 |
| METHOD OF CONNECTING STEEL PIPES PROVIDED WITH INTERNAL COAT | 2002 |
|
RU2225561C2 |
| METHOD BY PROTASOV V.N. FOR ANTI-CORROSION PROTECTION OF BELL AND BELL | 2015 |
|
RU2584016C1 |
| METHOD OF CONNECTING PIPES HAVING INNER COAT | 2002 |
|
RU2226637C2 |
| METHOD OF PROTASOV VN FOR BUSH INTERNAL ANTICORROSIVE PROTECTION OF WELDED JOINTS OF KNEE-PIPE PARTS WITH INTERNAL ANTICORROSIVE COATING | 2009 |
|
RU2388961C1 |
| METHOD OF CORROSION PROTECTION OF INTERNAL SURFACES OF WELDED JOINTS OF PIPES | 1997 |
|
RU2122150C1 |
| METHOD OF CORROSION PROTECTION OF INTERNAL ZONE OF WELDED JOINTS WITH INTERNAL COATING | 2014 |
|
RU2557827C1 |
| METHOD AND DEVICE FOR INNER CORROSION PROTECTION OF WELDED JOINT ZONE OF PIPES | 2001 |
|
RU2190149C1 |
| METHOD OF INTERNAL CORROSION PROTECTION OF WELDED JOINTS OF PIPES PROVIDED WITH INTERNAL PROTECTIVE COAT | 1997 |
|
RU2121621C1 |
