Integrated post-guided seat ring assembly

F - Mech Eng,Light,Heat,Weapons – 16 – K

Patent

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Details

F16K 1/42 (2006.01)

Patent

CA 2552721

A control valve (20) having a seat ring assembly (30) constructed from a unitary piece of material is disclosed. The seat ring assembly may include a base (44) which serves as a valve seat for the valve plug (36) of the valve, and which includes a plurality of exterior threads (46) adapted to rotatably attach to a plurality of interior threads (47) provided within the valve body (22). The seat ring assembly may also include a post-guided bearing surface (52) to maintain alignment of the valve plug to the valve seat. The seat ring assembly can be secured to the valve body simply by threadably attaching the elements. Moreover, by providing the valve seat (67) and the guide surface as integral parts of the seat ring assembly, manufacturing costs and maintenance requirements are reduced and subsequent seal leak performance is increased.

L'invention concerne une valve (20) de commande présentant un ensemble bague de siège (30) formé d'une seule pièce de matériau. L'ensemble bague de siège peut comprendre une base (44) servant de siège de valve pour le disque (36) de la valve, et comprenant une pluralité de fils extérieurs (46) adaptés pour être rattachés à une pluralité de fils intérieurs (47) situés dans le corps (22) de la valve. L'ensemble bague de siège peut également comprendre une surface (52) de support post-guidée destinée à maintenir l'alignement du disque de valve et du siège de valve. L'ensemble bague de siège peut être fixé au corps de valve simplement par fixation des éléments à l'aide des fils. De plus, le siège (67) de valve et la surface de guidage étant intégrés dans l'ensemble bague de siège, les coûts de fabrication et les exigences d'entretien sont réduits et l'efficacité de prévention des fuites est améliorée.

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