In-line valve for insertion in a pressurized fluid flow line

F - Mech Eng,Light,Heat,Weapons – 16 – L

Patent

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Details

F16L 55/07 (2006.01) F16L 41/04 (2006.01) F16L 41/06 (2006.01) F16L 55/105 (2006.01)

Patent

CA 2167012

A valve adapted for insertion in a pressurized fluid flow line for blocking and sealing the flow of fluid through the line without disconnecting the line and to maintain the pressure in the upstream end of the line. The valve includes two body portions which may be clamped on the fluid flow line to form a valve body in which is adjustably mounted an elongated tubular outer shaft, and an elongated cylindrical inner shaft that is rotatably mounted through the tubular outer shaft and carries an annular hole cutter and a tubular seal. The inner shaft is rotatable for driving the annular hole cutter through the line and the outer shaft is rotatable for advancing the inner shaft and annular hole cutter and for positioning the tubular seal in the hole cut through the line to block and seal flow through the downstream portion of the line.

Soupape adaptée pour être introduite dans une canalisation de fluide sous pression pour isoler le débit dans la canalisation sans qu'il soit nécessaire de débrancher la canalisation et pour maintenir la pression en amont. La soupape comprend un corps en deux parties qui peut être serré sur la canalisation de fluide pour former un corps de soupape dans lequel est monté, de manière réglable, un arbre extérieur tubulaire allongé et un arbre intérieur cylindrique allongé qui est monté par rotation dans l'arbre extérieur tubulaire et porte un coupe-trou annulaire et une étanchéité tubulaire. L'arbre intérieur est tournable pour l'entraînement du coupe-trou annulaire dans la canalisation et l'arbre extérieur est tournable pour l'avance de l'arbre intérieur et du coupe-trou annulaire et pour positionner l'étanchéité tubulaire dans le trou pratiqué dans la canalisation, afin de couper et d'isoler le fluide de la partie aval de la canalisation.

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