Valve assembly and system

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

Patent

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F16K 1/12 (2006.01)

Patent

CA 2666726

A valve assembly and system designed to enable an operator to withdraw a sample of a liquid from a source, typically for collection in a collection vessel. The valve assembly includes a valve housing, a sleeve secured to the valve housing and having an inner surface being at least partially threaded for mating with a threaded section disposed on the valve stem body. The valve stem has an internal longitudinal bore, a sealing boot, circumferential seals, and openings to the bore, and is movable between an open position (wherein the fluid flows from the source through the valve assembly) and a closed position (wherein the valve stem prevents the fluid from flowing from the source into the valve assembly).

La présente invention concerne un ensemble de soupape et un système conçus pour permettre à un opérateur de retirer un échantillon d'un liquide d'une source, typiquement pour la collecte dans un récipient collecteur. L'ensemble de soupape comprend un logement de soupape, une douille fixée au logement de soupape et présentant une surface interne qui est au moins partiellement filetée pour correspondre avec une section filetée disposée sur le corps de tige de soupape. La tige de soupape présente un alésage longitudinal interne, un orifice d'étanchéité, des joints d'étanchéité circonférentiels et des ouvertures vers l'alésage, et elle est mobile entre une position ouverte (dans laquelle le fluide s'écoule depuis la source à travers l'ensemble de soupape) et une position fermée (dans laquelle la tige de soupape empêche l'écoulement du fluide de la source vers l'ensemble de soupape).

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