Plates for dual plate check valves

Details Plates for dual plate check valves Plates for dual plate check valves

F - Mech Eng,Light,Heat,Weapons

16

K

F16K 15/03 (2006.01)

Patent

CA 2177684

A metal plate (20) for a dual plate check valve. A central portio n (36) of a D-shaped plate (20) is reinforced such as by means of a raised area (36) on either or both sides of the plate to resist deformation when subjected to reverse pressure in the valve closed position, while the ends (35) of the plate are not reinforced. This enables the valve plate to deform in a controlled manner to maintain or improve sealing engagement with a valve seat when the valve is subjected to reverse pressure in the valve closed position.

Plaque métallique (20) pour soupape de non-retrour à deux plaques. Une partie centrale (36) d'une plaque en D (20) est renforcée notamment par une zone surélevée (36) ménagée sur l'un ou l'autre côté de la plaque, ou des deux côtés de celle-ci, afin de résister à la déformation lorsque la soupape est en position fermée, tandis que les extrémtiés de la plaque ne sont pas renforcées. La plaque subit ainsi une déformation régulée afin de maintenir ou d'améliorer le contact étanche de ladite plaque avec un siège de soupape, lorsque la soupape est soumise à une contre-pression en position fermée.

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