Cartridge seated plug valve
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United States of America Patent
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Sep 13, 2016
Grant Date -
May 19, 2016
app pub date -
Nov 18, 2014
filing date -
Nov 18, 2014
priority date (Note) -
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Abstract
A cartridge seated plug valve includes a hollow body with an inlet, an outlet, and a cylindrical valve chamber. A C-shaped rotor with an elastomeric coating is rotatably held in the valve chamber by a valve cover and a base. A valve facing with an elastomeric gasket is held adjacent to the inlet, with a central aperture of the valve facing aligned with the inlet, and the elastomeric gasket held in compression about an inlet seal surface at a perimeter of the inlet, by facing channels in the cover and base. In a closed position, the rotor is oriented with the elastomeric coating of the plug segment sealing the central aperture. The valve is opened by rotating the main stem, changing an orientation of the rotary plug, and moving the plug segment away from the inlet.
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