Patent ID: 8308132
Filing Date: 2012-11-13
Classification: F16K

Abstract:
1. A valve comprising: a housing having a fluid inlet and a fluid outlet; a flow path connecting the fluid inlet to the fluid outlet; a rotatable hemi-wedge valve closure member mounted within the housing; a valve body core defining of a portion of a flow path; a downstream portion of the valve body core having a first sealing surface; an upstream portion of the outlet including a valve seat member; and the hemi-wedge rotatable between an open position allowing for unobstructed flow of fluid through the valve and a closed position in which an upstream surface of the hemi-wedge engages the first sealing surface and a downstream surface of the hemi-wedge engages the valve seat member, wherein the valve body core includes a first valve core member and a second valve core member and a resilient seal between the first and second core members which allows the first and second valve core members to move longitudinally with respect to each other.