Diaphragm-sealed valve having intermediate communication ports

Details Diaphragm-sealed valve having intermediate communication ports Diaphragm-sealed valve having intermediate communication ports

F - Mech Eng,Light,Heat,Weapons

16

K

F16K 11/22 (2006.01) B01D 15/14 (2006.01) F16K 7/16 (2006.01) G01N 30/20 (2006.01)

Patent

CA 2690617

A diaphragm-sealed valve having communication mechanisms operatively connecting neighbouring pairs of grooves is provided. Each communication mechanism has a communication port opening in an interface of a valve cap, between the neighbouring grooves. The communication mechanism also has a communication conduit extending within the valve cap and connecting the communication port and one of the neighbouring grooves. It also has a recess within a valve body aligned with the communication port and with the other one of the neighbouring grooves, a flexible sealing surface of the diaphragm being seated within the recess and resiliently biased away from the interface of the valve cap. A plunger assembly is also provided, including plungers movable to push flexible sealing surface towards the communication port.

L'invention concerne un robinet à membrane possédant des mécanismes de communication reliant de façon opérationnelle des paires de rainures voisines. Chaque mécanisme de communication comporte un orifice de communication s'ouvrant dans une interface d'une capsule de robinet, entre les rainures voisines. Le mécanisme de communication comporte également un conduit de communication qui s'étend dans la capsule de robinet et reliant l'orifice de communication et l'une des rainures voisines. Il comporte également un évidement dans un corps de vanne aligné avec l'orifice de communication et avec l'autre des rainures voisines, une surface d'étanchéité flexible du diaphragme siégeant dans l'évidement et étant sollicitée hors de l'interface de la capsule de robinet. L'invention concerne également un assemblage piston qui inclut des pistons mobiles permettant de pousser la surface d'étanchéité flexible en direction de l'orifice de communication.

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