Pipe coupling

Details Pipe coupling Pipe coupling

F - Mech Eng,Light,Heat,Weapons

16

L

F16L 17/10 (2006.01) F16L 13/10 (2006.01)

Patent

CA 2358120

A coupling comprising a tubular inner member (9) defining a socket dimensioned to receive a pipe to be connected to the coupling. The inner member (9) is positioned within a tubular body (1) to define a closed annular chamber, and an inlet (2) is provided through the body so as to communicate with the chamber. In use, pressurised fluid such as a setting resin is introduced through the inlet (2) into the chamber. The pressure of the introduced fluid is sufficient to cause the radially inwards deformation of the tubular inner member (9) so as to grip the pipe (13, 14) which is received within the socket. Pressure may be applied up to a predetermined limit, or until seal failure.

L'invention porte sur un accouplement fait d'un élément tubulaire intérieur (9) formant un manchon dimensionné pour recevoir un tube se raccordant à l'accouplement. L'élément intérieur (9) est placé à l'intérieur dans un corps tubulaire (1) formant une chambre annulaire fermée, et percée d'un orifice (2) communiquant avec la chambre. Pour réaliser l'accouplement, on introduit dans l'orifice (2) un fluide sous pression tel qu'une résine en cours de durcissement dont la pression est suffisante pour produire une déformation radiale vers l'intérieur de l'élément tubulaire intérieur (9) suffisante pour qu'il enserre le tube (13, 14) introduit dans le manchon. La pression peut être appliquée jusqu'à une certaine limite, ou jusqu'à la rupture d'un joint.

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