A piston valve is a type of valve that uses a cylindrical piston to control the flow of fluid or gas through a pipeline. The piston can move up and down within a cylindrical chamber, either opening or closing the passageway depending on its position. When the piston is in the open position, fluid can flow freely through the valve; when it is in the closed position, flow is blocked. Piston valves are often used in various applications due to their ability to handle high-pressure and high-temperature conditions.
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