Patent ID: 9052050
Filing Date: 2015-06-09
Classification: F16L,Y10T

Abstract:
1. A valve device for assembly in in-service pipelines, said valve device is prepared to be assembled on a pipeline, while continuous fluid circulation is maintained through the pipeline, in order to perforate said pipeline and assemble said valve device to act as a flow control of said fluid circulation between a position of maximum circulation and a shut-off position, said valve device comprises: a mounting assembly able to form an operative air-tight housing on a portion of a pipeline prepared to be cut by perforation, said mounting assembly including an operative subset and a deposit subset, said operative subset including a cutting means and a valve means, wherein said cutting means and said valve means are aligned on a drive means positioned transversely to said portion of said pipeline, said deposit subset including a passage for said cutting means, the deposit subset being adapted to lodge a cut pipeline bite, a plurality of lateral sets which, when assembled on said portion of said pipeline, comprise subsets of a valve seat on both sides of the location where said pipeline is to be cut; and each subset of the valve seat includes a valve seat displaceable in order to bring said valve seat into in contact with said valve means, a tightness joint (