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    • 1. 发明申请
    • BALL VALVE IMPEDANCE SEAT
    • 球阀阻抗座
    • WO2009076228A3
    • 2009-09-11
    • PCT/US2008085722
    • 2008-12-05
    • MOGAS IND INCCHRISTENSON CYNTHIAJACKSON KEVIN
    • CHRISTENSON CYNTHIAJACKSON KEVIN
    • F16K5/06F16K5/08F16K25/00
    • F16K47/08F16K5/0605Y10T137/0318
    • An impedance seat (10) having an impedance element (19) that can be mounted in conjunction with a seat in a ball valve (52). The impedance seat has a concave surface (16) matching the curvature of the ball (76) and a plurality of flow paths (18) formed through it. An impedance assembly can have a plurality of stacked plates (34) that define the flow paths. The impedance seat can have a full flow window (104) having a radius that matches the profile of a flow bore (86) of the ball valve in an intermediate position. The impedance seat can be easily fabricated to provide improved impedance characteristics, and can be used in an original ball valve, or in a retrofit for an existing valve.
    • 一个具有阻抗元件(19)的阻抗座(10),阻抗元件(19)可以与球阀(52)中的座位一起安装。 阻抗座具有与球体(76)的曲率相匹配的凹面(16)和通过其形成的多个流动路径(18)。 阻抗组件可以具有限定流动路径的多个堆叠板(34)。 阻抗座可以具有完全流动窗口(104),其具有与处于中间位置的球阀的流动孔(86)的轮廓匹配的半径。 阻抗座可以容易地制造以提供改进的阻抗特性,并且可以用于原始球阀或用于现有阀的改进。