Patent ID: 6932321
Filing Date: 2005-08-23
Classification: F16J,F16K

Abstract:
1. 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: a 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, the annular seal cross-section being substantially Y-shaped such that the Y-shape forms a substantially V-shaped elastic region positioned upon a base forming the compression surface such that a first lip and a second lip on the V-shaped elastic region form the 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.