Patent ID: 8028573

Claim:
A tool set to set-up, in a fluid piping (K), a flow monitoring device comprising a hollow body provided with an upstream end and a downstream end, a valve integrated to the hollow body and designed to close in response to a fluid flow rate in the piping (K) exceeding a maximal boundary flow rate, a cup-type seal member arranged at the downstream end of hollow body, and a plurality of elastic legs connected to the hollow body between the upstream and downstream ends of this hollow body and designed to elastically distend at their free ends turned towards the downstream end of the hollow body, once the device is installed in the piping, this tool set comprising a sheath in which the device is initially inserted from the downstream end of hollow body in a preparatory configuration in which the seal and legs are radially folded and elastically stressed into the sheath, this tool set being characterized in that it further comprises a hollow semi-flexible hose, a pump connected to a first end of the hose and adapted to monitor the pressure prevailing inside the hose, a manometer subjected to the pressure prevailing inside the hose, a jack installed at a second end of the hose and comprising a cylinder subjected to the pressure prevailing inside the hose and a piston, the sheath being screwed on the cylinder of this jack on the downstream end side of said device, a support member a first end of which bears a metric counter slidingly crossed by the hose and a second end of which is also slidingly crossed by the hose, and an introduction airlock comprising at least one pipe crossed by the end of hose bearing the jack and exhibiting at least one rectilinear and rigid terminal guiding section, a first end of the pipe being carried by the support member and comprising a retaining ring such as a stuffing box slidingly crossed by the hose, and a second end of the pipe comprising the terminal guiding section and being adapted to be sealingly screwed on an accessible portion (Ko) of piping (K) arranged in the extension of this terminal guiding section, the hose exhibiting, between the two ends of the support member, a longitudinal section accessible and able to be pushed or pulled to introduce said jack into said piping (K) or retrieve it therefrom, and the piston of said jack adopting in the cylinder of said jack a position which depends on the pressure inside the hose and being adapted to selectively eject the device out of the sheath.