Positive shutoff device for a connection point of a...

F - Mech Eng,Light,Heat,Weapons – 25 – B

Patent

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F25B 41/04 (2006.01) F16K 27/00 (2006.01)

Patent

CA 2749341

A positive shutoff device is provided for a connection point of a refrigeration system. The connection point includes a manually-actuatable valve that permits charging and testing of the system. The device includes a first fitting engagable with the connection point and having a raised actuator that actuates the manually-actuatable valve when the first fitting engages the connection point, and a shutoff valve having a first end coupled to the first fitting and a second end coupled to a second fitting, the shutoff valve is operable in a closed position to prevent flow therethrough and an open position to permit flow therethrough, so that the refrigeration system may be charged or tested by connecting equipment to the second fitting and opening the shutoff valve, and the connection point may be positively shut off to prevent leakage of refrigerant through the connection point by closing the shutoff valve. Image

La présente invention concerne un dispositif d'arrêt positif pour un point de raccordement d'un système de réfrigération. Le point de raccordement comprend une valve à commande manuelle qui permet la charge et le test du système. Le dispositif comprend un premier raccord destiné à coopérer avec le point de raccordement et présentant un organe de commande surélevé qui actionne la valve à commande manuelle lorsque le premier raccord entre en contact avec le point de raccordement, et une valve d'arrêt ayant une première extrémité couplée au premier raccord et une seconde extrémité couplée à un second raccord. Ladite valve d'arrêt peut être mise en position fermée pour empêcher toute circulation à travers celle-ci et en position ouverte pour permettre la circulation à travers celle-ci, de telle sorte que le système de réfrigération puisse être chargé ou testé en raccordant l'équipement au second raccord et en ouvrant la valve d'arrêt, et le point de raccordement peut être positivement fermé pour prévenir toute fuite de réfrigérant à travers le point de raccordement en fermant la valve d'arrêt.

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