Gaz De France

Gdf Suez

Gdz Suez

Amine Dalibey

Didier Mangon

David Leme

Luc Mesnier

The invention particularly relates to a tool set making it possible to introduce in a sheath () a flow-monitoring device () comprising a hollow body (), a valve (), a cup-type seal member (), and a plurality of retention elastic legs (). This tool set comprises three tools (), whereof the first tool is formed of a contention bushing () and an ejecting pusher (), whereof the third tool () receives the sheath () and comprises a cylinder () wherein a centering piston () slides in the sheath, and whereof the second tool () shaped like a funnel, is inserted between the first tool () and the third tool (), and makes it possible to radially compress the seal () and the legs () of the device () while inserting them into the sheath () while this device is pushed out of the first tool.

Tool set for the introduction in a sheath of a flow-monitoring device for a fluid piping, and an implementation method therefore

The disclosure relates to a safety device to be inserted in a pipe through which a fluid flows from an upstream side to a downstream side, this device comprising a tube offering the fluid a central flow path controlled by a central valve which closes in the event of excessive flow of this fluid, an elastically deformable annular shutter mounted on the external periphery of the tube, and retention clamps. According to the disclosure, each of the clamps has a tied end fastened to the periphery of the tube upstream of the annular shutter and can adopt, under the effect of a radial compression, a folded configuration in which its free end is turned towards this annular shutter.

Automatically tripped compact safety device for controlling the flow of a fluid

The invention relates to a flow control device which is insertable into a fluid pipeline (K) and comprising a valve (), an obturator with membrane (), and anchoring flaps () that can deploy like umbrella spokes under the action of an elastic stress until it presses against the wall (P) of the pipeline (K). According to the invention, the membrane () and the flaps () are mutually attached to and disposed on a same side of the valve body (), so that as the flaps () deploy the membrane () deploys at the same time until the membrane presses against the internal wall of the pipeline (K) and the fluid exerts on the deployed membrane a pressure which increases the pressure of the flaps () against this wall (P).

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Villejuif, France

Amine Dalibey