Invention Application
US20140090713A1 Vented Ball Valve 审中-公开
通风球阀

Vented Ball Valve
Abstract:
A ball valve is disclosed having a pipe with two openings. The ball valve selectively permits the passage of liquids or gasses through the two openings. The ball of the ball valve includes a vent hole that communicates with only one of the openings when the ball valve is in the closed position to allow gases or liquids trapped inside the ball to escape the ball rather than expand and damage the ball.
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