Patent ID: 7347408

Claim:
A high differential pressure, low torque precision temperature control valve comprising; a fluid chamber; a fluid acceptance passageway and a fluid discharge passageway each having interior and exterior edges; a valve body, having upper and lower stanchions, where said interior edge of said fluid acceptance and said interior edge of said fluid discharge passageways are axially disposed and appurtenant to opposite ends of said fluid chamber; an attachment means connected onto said exterior edge of said fluid acceptance and said fluid discharge passageways; a plug centrally interposed therein said fluid chamber, spherically shaped, possessing an upper boss and a lower borehole centrally disposed on the parameter of said plug along the vertical axis of said plug, and a set of orifices diametrically opposed, juxtapositionally opposite, along the parameter of said plug along the horizontal axis of said plug, where said horizontal axis of said plug is coincident with the horizontal axis of said fluid acceptance and said fluid discharge passageways, said upper boss is adapted to receive rotational transpositional means for said plug, said lower borehole adapted to forcibly receive a plate, said plate has externally mounted thereonto a lower stem receiving post; a two sided raceway circumferentially described onto and near said interior edge of said fluid acceptance and said interior edge of said fluid discharge passageways, said raceway having a depth and a height component; a circumferential groove circumscribed within said raceway; a set of non-metallic sealing members, elliptical in profile, disposed within said circumferential grooves; a set of polymer based seals, polygonal in profile, in sustained contact with said plug, having a radiused face, a lower frontal area, an upper frontal area, a flat bottom less in length than said depth component of said raceway, and an exterior side adapted to receive a portion of said sealing member; an upper stem, superimposed internally to said upper stanchion having an anterior and a dorsal end, where said anterior end is adapted to frictionally interface with said upper boss of said plug, said upper stem providing rotational transpositional means to change position of said plug along said vertical axis of said plug, said dorsal end of said upper stem is adapted to receive an actuator interface; and a lower stem, superimposed internally, to said lower stanchion, stationaryily mounted to exterior end of said lower stanchion and bearingly mounted into said lower stem receiving post.