FIELD: construction.
SUBSTANCE: outer surface of the pipe ends is provided with ring grooves spaced by ring projections. The ends of the coupling are provided with ring grooves. The ring grooves in the pipes receive sealing rings. The pipe ends house inserts which seal the faces of pipes from the space of pipeline. The ring grooves, projections of pipes, and ring grooves in the coupling provide a locking joint.
EFFECT: enhanced strength of coupling.
2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF ONE-PIECE COUPLING JOINING OF METAL PIPES | 2014 |
|
RU2557153C1 |
| METHOD OF PERMANENT COUPLING CONNECTION OF PIPES | 2011 |
|
RU2469237C2 |
| METHOD OF CONNECTING INTERNALLY COATED PIPES | 2006 |
|
RU2305218C1 |
| METHOD OF CONNECTION OF PIPES WITH PROTECTIVE COATING | 2006 |
|
RU2308634C1 |
| PIPE MANUFACTURED FROM HIGH-STRENGTH CAST IRON WITH GLOBULAR GRAPHITE WITH STEEL END BRANCH PIPES | 2002 |
|
RU2230968C1 |
| PROCEDURE FOR FABRICATION OF ELECTRO-INSULATING INSERTION FOR PIPELINE | 2009 |
|
RU2406911C1 |
| METHOD FOR MANUFACTURING OF CURRENT-INSULATING INSERT FOR PIPELINE | 2009 |
|
RU2406007C1 |
| METHOD OF NON-DETACHABLE SLEEVE-TYPE CONNECTION OF PIPES MADE FROM HIGH-STRENGTH CAST IRON WITH SPHERICAL GRAPHITE | 2002 |
|
RU2216673C2 |
| METHOD OF PERMANENT SLEEVE JOINTING OF PIPES PROVIDED WITH INTERNAL THERMOPLASTIC COATING | 2000 |
|
RU2168101C1 |
| PROCEDURE FOR FABRICATION OF CURRENT INSULATING INSERTION FOR PIPELINE | 2009 |
|
RU2406910C1 |
