Societe Anonyme: Societe Generale Pour Les Techniques Nouvelles-sgn

Jacques Dollfus

A flowmeter for dangerous fluids, using the deformation of a flexible metic diaphragm under the effect of a pressure variation caused by the liquid flow, the flowmeter being placed under a protective plate and comprising a body of general cylindrical shape placed inside a bowl equipped with a lower inlet connection piece for introducing liquid into the bowl and an upper outlet connection piece for receiving liquid leaving the bowl, the body having a calibrated inlet orifice on its lower face, an outlet orifice in its upper lateral part, the metallic diaphragm being situated in said body at the upper interior part of the body above said upper connection piece, and a metallic segment for sealing the joinder between the body and the bowl, at a level situated between the inlet and outlet connection pieces and a hollow pin, joined to said diaphragm and having a lower end extending into the calibrated orifice, the pin having an outlet orifice situated above the metallic diaphragm, the upper end of said pin extending into a sensing device for providing a measurement of the displacement of the pin relative to the device, and hence the deformation of the metallic diaphragm.

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Les Essarts le Roi, France

Jacques Dollfus