Flexible seals for process control valves

Details Flexible seals for process control valves Flexible seals for process control valves

F - Mech Eng,Light,Heat,Weapons

16

K

F16K 1/226 (2006.01)

Patent

CA 2634680

Flexible seals for process control valves are disclosed. An example disclosed seal includes a substantially flexible ring-shaped carrier (210) configured to be fixed within the butterfly valve and to surround a flow control aperture therein. The seal also includes a substantially rigid seal ring that has an outer circumferential surface (212) fixed to. the substantially flexible carrier and an inner circumferential surface (212) configured to sϵalingly engage a control member that operatively interacts with the flow control aperture.

L'invention concerne des joints flexibles pour soupapes de commande de processus. Un joint décrit comme exemple comprend un support en forme d'anneau sensiblement flexible, configuré pour être fixé à l'intérieur de la vanne papillon et y entourer une ouverture de régulation du débit. Le joint comprend aussi une bague d'étanchéité sensiblement rigide qui comporte une surface circonférentielle extérieure fixée au support sensiblement flexible et une surface circonférentielle intérieure configurée pour venir de façon hermétique au contact d'un élément de commande qui fonctionne par interaction avec l'ouverture de régulation du débit.

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