Anti-cavitation element for use with valves

A control valve includes a valve body, a valve seat, and a valve closure member displaceable a closed position and an open position. An anti-cavitation element is provided and includes a plurality ofhollow tubes including a first tube, a second tube and a third tube. Each tube includes a flow axis from an open first end to an open second end, and an inner surface defining a flow area and having across-sectional shape normal to the flow axis. A second end of the tubes is between the valve closure member and first ends of the tubes along their respective flow axes when the valve closure memberis closed. The first tube, the second tube, and the third tube are integrally formed as a single, unitary structure. 控制阀包括阀体、阀座和可在关闭位置与打开位置之间移位的阀关闭构件。提供了防空化元件，并且空化元件包括多个中空管，其包括第管、第二管和第三管。每个管包括从打开的第端到打开的第二端的流动轴线，以及限定流动面积并具有垂直于流动轴线的横截面形状的内表面。当阀关闭构件被关闭时，管的第二端位于阀关闭构件与沿着它们各自的流动轴线的管的第端之间。第管、第二管和第三管体地形成为单个整体结构。