Insertable piggable plug system

F - Mech Eng,Light,Heat,Weapons – 16 – L

Patent

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Details

F16L 55/163 (2006.01) F16L 55/179 (2006.01)

Patent

CA 2555474

The present invention is a plug system having a plug for insertion into a pipeline, wherein the plug system is insertable via a fitting attached to the pipeline. A pre-drilled aperture of the pipeline positioned normal to the cylindrically-shaped pipeline may interfere with a pig traveling through the pipeline. In one embodiment, the plug includes two coaxial cylindrical portions. A first cylindrical portion has a diameter greater than the aperture diameter, while the second cylindrical portion has a diameter less than the aperture diameter. Additionally the plug defines a hole that is oriented perpendicular to an axis of the cylindrical portions, wherein the diameter of the hole is approximately the size of inside diameter of the pipe. The plug has a retaining member to stabilize the plug system. When the plug is installed in the pipe it permit a pig to flow freely, thereby eliminating pigging hazards.

La présente invention porte sur un bouchon comprenant un bouchon à insérer dans une pipeline. Une ouverture préforée de la pipeline dans une position normale à la pipeline de forme cylindrique peut nuire à un racleur traversant la pipeline. Dans une réalisation, le bouchon est doté de deux parties cylindriques dans le même axe. Une première partie cylindrique comprend un diamètre plus élevé que le diamètre de l'ouverture, alors que la deuxième partie cylindrique comprend un diamètre moins élevé que le diamètre de l'ouverture. De plus, le bouchon définit un trou orienté perpendiculairement à un axe des parties cylindriques, où le diamètre du trou est environ de la taille de l'intérieur du diamètre du tuyau. Le bouchon comprend un élément de retenue afin de stabiliser le système de bouchon. Si le bouchon est installé dans le tuyau, il permet à un racleur de s'écouler librement, permettant d'éliminer les risques du raclage.

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