Isolation valve seal

Details Isolation valve seal Isolation valve seal

G - Physics

01

F

G01F 1/42 (2006.01)

Patent

CA 2645555

Methods and apparatus for sealing an aperture that provides fluid communication between a second and first chamber of a dual chamber orifice fitting. A sealing assembly comprises a closure member that is rotatably moveable between an open and closed position relative to the aperture. A secondary seal is disposed within a recessed portion on a sealing face of the closure member. The recessed portion has a perimeter defined by a shoulder. A primary seal is disposed within a groove formed between the shoulder and the secondary seal.

L'invention concerne des procédés et un appareil pour obturer une ouverture qui permet la communication fluidique d'une première chambre et d'une deuxième chambre d'un accessoire de diaphragme à double chambre. L'assemblage du joint comprend un élément de fermeture qui peut se déplacer en tournant d'une position ouverte à une position fermée par rapport à l'ouverture. Un joint secondaire est placé dans une partie en retrait d'une face d'obturation de l'élément de fermeture. La partie en retrait comporte un périmètre défini par un épaulement. Un joint primaire est placé dans une rainure formée entre l'épaulement et le joint secondaire.

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