20110073792 | Hemispherical Wedge Valve with Laminar Flow - A valve having a hemispherical wedge closure member and including structure for maintaining laminar fluid flow through the valve body. The laminar fluid flow structure may include a solid core member with a plurality of discrete bores therethrough or a plurality of baffles extending longitudinal through a hollow core member. The laminar flow reduces noise, structural failure, erosion, cavitation, and premature wearing of valve seals and seats. | 03-31-2011 |