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1. (WO2015177258) RACCORD POUR RACCORDEMENT À UN TUYAU
Note: Texte fondé sur des processus automatiques de reconnaissance optique de caractères. Seule la version PDF a une valeur juridique

CLAIMS

1. A fitting (1) for coupling to at least one pipe (2 ) , comprising:

- a sleeve end (3, 10) for receiving the pipe (2);

- at least one sealing member (4, 9) to provide a seal to the pipe (2) received in said sleeve end (3, 10);

- a pressure member (5) for applying a pressure to the sleeve end (3, 10) and to the pipe (2);

- gripper teeth (6) provided on the pressure member (5) and arranged to act on the pipe (2); and

- actuation means (7, 12) that are tuneable from outside the sleeve end {3, 10 ) for arranging that a pressure is applied to the pressure member (5) ;

characterized in that

in use the pressure member (5) is subj ect to a prevailing pressure at the inside of the pipe (2) .

2. A fitting according to claim 1, characterized in that the sleeve end (3, 10) is provided with an aperture (8) providing a fluid and/or gas connection from the inside of the pipe (2 ) towards a radially outward circumferential sur-face (5' ) of the pressure member (5) .

3. A fitting (1) according to claim 1 or 2, charac- ized in that the at least one sealing member (4) is positioned, between at least the pressure member (5) and the pipe (2) .

4. A fitting (1) according to any one of claims 1 - 3, characterized in that the at least one sealing member (4) is further positioned between the pressure member (5) and the sleeve end (3, 10) .

5. A fitting (1) according to any one of claims 1 -4, characterized in that it comprises a second sealing member

(9) between a sleeve (10) and a pressurizing organ ( 3 ) forming part of said sleeve end (3, 10 ) .

6. Ά fitting (1) according to any one of claims 1 - 4, characterized in that the at least one sealing member (4) is connected to and/or follows at least part of an inner pe- riphery of the sleeve end (3, 10) .

7. A fitting (1) according to any one of claims 1 -6, characterized in that there are separate sealing members positioned between the pressure member (5) and the sleeve end ( 3 , 10), respectively between the pressure member (5) and the pipe (2) .

8. A fitting (1) according to any one of the previous claims 1 - 7, wherein the sleeve end (3, 10) and the pressure member (5) have adjoining slanting contacting sur-faces (11' , 11'') to arrange that a force applied to the pressure member (5) with the actuation means (7, 12) in parallel with a longitudinal body axis of the sleeve end (3, 10), acts on the pressure member (5) with a component perpendicular to said longitudinal body axis on the pipe (2) re-ceived in said sleeve end (3, 10).

9. A fitting (1) according to any one of claims 1 -8, characterized in that the actuation means (7, 12) are hy-draulically, pneumatically and/or mechanically tuneable.

10. A fitting (1) according to claim 9, character-ized in that the actuation means are pneumatically tuneable by arranging that a bellow (12) is arranged to press towards the pressure member (5), and valve means (13) are applied at a circumferentially outwards position of the sieeve end (3, 10) for pressurizing said bellow (12).

11. A fitting (1) according to claim. 9, characterised in that the actuation means are mechanically tuneable? by tuning means embodied with a bolt and nut (7), a screw connection (fig. 2.1 2.6), a rack and pinion or a spindle drive .