Abrégé

A pipe coupling has a housing has a receiving recess for a pipe, the housing having a through hole extending from a first aperture in an external surface of the housing through to a second aperture in the inner wall of the receiving recess. A fixing element is arranged to slidingly mate with the through hole in the housing to give a mated configuration, and when in the mated configuration, an engagement part of the fixing element is adapted to project through the second aperture to lockingly engage with the outer surface of the pipe. The through note is also provided with a locking means adapted to be configured in an open configuration, in which the fixing element can be slidingly mated with or removed from the through hole through the first aperture, and a locked configuration, in which the locking means holds the fixing element in the mated configuration in the through hole. The pipe coupling provides a fluid-tight connection using relatively low-tolerance, easily manufactured parts and suitable for rapid deployment in hazardous environments.

Classes IPC  ?

• F16L 25/08 - Structure ou détails de raccords de tuyaux non prévus dans les groupes ou présentant in intérêt autre que celui visé par ces groupes comprenant des moyens de verrouillage radiaux sous forme d'écrous, de clous ou analogues
• F16L 41/08 - Raccordements des tuyaux aux parois ou à d'autres tuyaux, dans lesquels l'axe du tuyau est perpendiculaire au plan de la paroi ou à l'axe de l'autre tuyau
• F16B 7/00 - Assemblages de barres ou assemblages de tubes, p. ex. de section non circulaire, y compris les assemblages élastiques

Abrégé

A coupling (1) for connection to a tubular conduit (4) has a hollow expandable seal arrangement (12) moveable from an unexpanded position in which a tubular conduit (4) can be pushed past the seal to an expanded position in which the seal arrangement (12) generates a seal between the coupling end (2) and the tubular conduit (4) on the introduction of a fluid (36) into the seal. The hollow expandable seal arrangement (12), when in the expanded position, is adapted to form a set seal between the coupling end (2) and said tubular conduit (4), for instance by using a setting fluid for its expansion, or by means of a second adhesive toroidal seal (40) positioned between the expandable seal (12) and the tubular conduit (4), the second seal (40) being forced into an adhered set seal with the tubular conduit (4) when the expandable seal (12) is in the expanded position.

Classes IPC  ?

• F16L 17/10 - Raccords avec garnitures adaptées à une étanchéité par pression de fluide la garniture étant rendue étanche par la pression d'un fluide autre que celui circulant dans le tuyau ou entourant le tuyau
• F16L 25/08 - Structure ou détails de raccords de tuyaux non prévus dans les groupes ou présentant in intérêt autre que celui visé par ces groupes comprenant des moyens de verrouillage radiaux sous forme d'écrous, de clous ou analogues