Multi-port orifice meter fitting

G - Physics – 01 – F

Patent

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Details

G01F 1/42 (2006.01)

Patent

CA 2196740

An orifice meter comprised of two concentric flanges and a center plate assembly is described. The center plate assembly includes an orifice plate holder arranged to rotate within the orifice meter around a shaft extending from the center of the center plate assembly and protruding through one of the flanges. Rotating the shaft will align one of the orifice plates in the orifice plate holder with the inlet and outlet pipe openings in the flanges. Thus, the orifice meter herein described does not have to be disconnected to change orifice plates. Pressure transducers are included in the flanges to determine the pressure upstream and downstream of the orifice plate. An inspection plug installed in one of the flanges allows for easy inspection and changing of the orifice plates, meaning that the orifice meter herein described does not have to be disconnected to replace or service the orifice plates.

Débitmètre à diaphragme comprenant deux brides concentriques et un ensemble de plaque intermédiaire doté d'un porte-diaphragme conçu pour tourner dans le débitmètre autour d'une tige partant du centre de l'ensemble de plaque intermédiaire et dépassant une des brides. La rotation de la tige permet d'aligner un des diaphragmes dans le porte-diaphragme avec les ouvertures des tuyaux d'entrée et de sortie dans les brides. Ainsi, il n'est pas nécessaire de déconnecter le présent débitmètre pour changer les diaphragmes. Des transducteurs de pression sont placés dans les brides pour déterminer la pression en amont et en aval du diaphragme. Une des brides est équipée d'un bouchon pour faciliter l'inspection et le changement des diaphragmes, ce qui permet de changer ou d'entretenir les diaphragmes sans déconnecter le débitmètre.

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