Valve filter

Details Valve filter Valve filter

F - Mech Eng,Light,Heat,Weapons

16

K

F16K 51/00 (2006.01) B01D 35/02 (2006.01) B01D 35/04 (2006.01) F16K 17/02 (2006.01) F16K 39/02 (2006.01)

Patent

CA 2230335

A valve filter is provided particularly for a balanced pressure valve and provides a means of preventing particles passing through the balance holes of the valve plug. The valve comprises a valve housing and a valve plug movable in the housing to open and close the valve, the valve plug containing at least one balance hole, the balance hole defining a fluid communication channel through the valve plug, the fluid communication channel being provided with a filter, the filter comprising a body member and a plurality of elements, each element having a first end and a second end and being fixed at its first end to the body member and being free at its second end, whereby the elements can deflect under pressure.

Filtre pour vanne, en particulier pour vanne à pression équilibrée. Ce filtre sert à empêcher des particules de passer par les orifices d'équilibrage du clapet de vanne. La vanne comprend un boîtier et un clapet mobile dans le boîtier qui sert à ouvrir la vanne et à la fermer; le clapet conprend au moins un orifice d'équilibrage définissant une voie de communication du fluide. Celle-ci est dotée d'un filtre constitué d'un corps et d'une pluralité d'éléments. Chaque élément, qui comprend une première et une deuxième extrémités, est fixé au corps du filtre par sa première extrémité tandis que sa deuxième extrémité est libre. Les éléments peuvent fléchir sous la pression.

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