Patent ID: 7083160

Claim:
A seal assembly for a control valve wherein the valve comprises a valve body, a valve bonnet, and a valve cage, the seal assembly comprising: an annular seal placed between the valve cage and the valve bonnet, the annular seal having in combination an elastic region, a compression surface, and at least one sealing surface wherein the valve cage has a channel adjacent to the valve bonnet for receiving the annular seal; and the valve bonnet having a shoulder to engage the compression surface of the seal to deform the elastic region of the seal to place the sealing surface of the seal in contact with at least one of the valve bonnet or the valve cage to form a fluid seal, wherein the cross-section of the annular seal is substantially X-shaped such that the X-shape forms a substantially V-shaped elastic region positioned in mirrored opposition to a substantially V-shaped compression surface wherein a first flexible lip and a second flexible lip of the V-shape elastic region form a first sealing surface.