Flow control valve for fluidized material

Details Flow control valve for fluidized material Flow control valve for fluidized material

F - Mech Eng,Light,Heat,Weapons

16

K

F16K 5/20 (2006.01)

Patent

CA 2635080

A flow control valve (10) for fluidized material comprises a valve housing (12) having a valve chamber (18) with a valve seat (30) and a valve plug (20) having a flow passage (22,24), the valve plug (20) being arranged inside the valve chamber (18) in front of the valve seat (30) so as to be rotatable about an axis of rotation (A) for controlling a flow through the flow control valve (10). It further comprises spring means biasing the valve plug (20) against the valve seat (30) perpendicularly to the axis of rotation (A), for achieving a sealing contact between the valve seat (30) and the valve plug (20). According to an important aspect of the invention, the spring means comprises at least one cantilever spring (40) arranged in a clearance space (42) opposite to the valve seat (30) so as to bias the valve plug (20) against the valve seat (30).

Vanne (10) régulatrice de débit pour matériau fluidisé, comportant un carter (12) de vanne présentant un compartiment (18) de vanne doté d'un siège (30) de vanne et d'un bouchon (20) de vanne comportant un passage (22,24) d'écoulement, le bouchon (20) de vanne étant disposé à l'intérieur du compartiment (18) de vanne devant le siège (30) de vanne de façon à pouvoir être tourné autour d'un axe de rotation (A) afin de réguler un écoulement à travers la vanne (10) régulatrice de débit. Celle-ci comporte en outre un moyen de ressort sollicitant le bouchon (20) de vanne contre le siège (30) de vanne perpendiculairement à l'axe de rotation (A), afin de réaliser un contact étanche entre le siège (30) de vanne et le bouchon (20) de vanne. Selon un important aspect de l'invention, le moyen de ressort comporte au moins un ressort (40) en porte-à-faux disposé dans un jeu (42) en face du siège (30) de vanne de façon à solliciter le bouchon (20) de vanne contre le siège (30) de vanne.

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