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1. 发明授权

US4216793A Shutoff valve 失效
标题翻译：关闭阀
公开(公告)号：US4216793A
公开(公告)日：1980-08-12
申请号：US964811
申请日：1978-11-30
申请人： Frank R. Volgstadt , Albert H. Reschke , David P. Passerell , Raymond A. Day
发明人： Frank R. Volgstadt , Albert H. Reschke , David P. Passerell , Raymond A. Day
IPC分类号： F16L41/04 , F16L47/34 , F16K51/00
CPC分类号： F16L47/34 , F16L41/04 , Y10T137/6123
摘要： A shutoff valve particularly suited for use with fluid pipelines such as natural gas mains or the like constructed from plastic which allows the valve to be selectively opened and closed from a remote location. The valve has a valve body which includes a mounting surface for mounting the valve to the pipeline. A first passageway extends through the valve body into communication with the mounting surface and a second passageway communicates with the first passageway intermediate the ends thereof. Fluid passing outwardly of the valve through the second passageway may be conveyed to the area of useful application. A punch arrangement is included in the first passageway which is conveniently used after valve installation to punch a hole in the side wall of the pipeline to provide fluid communication between the pipeline and valve. In one embodiment, a piston assembly is slidably received in the first passageway and selectively movable between a first normal position blocking such flow and a second open position allowing such flow. The piston assembly is moved from the first to the second position by fluid pressure introduced thereagainst from a remote source and is moved from the second back to the first position under the influence of a spring member. In another embodiment, the valve body includes a third passageway communicating with the first and second passageways. A piston assembly received in the third passageway is selectively movable between first open and second closed positions by external means to allow or prevent fluid flow through the valve as may be desired.
摘要翻译：特别适用于由塑料制成的诸如天然气管道等的流体管道的截流阀，其允许阀门从远程位置选择性地打开和关闭。阀具有阀体，该阀体包括用于将阀安装到管道的安装表面。第一通道延伸穿过阀体与安装表面连通，第二通道与其端部之间的第一通道连通。通过第二通道向阀外通过的流体可被传送到有用应用的区域。在第一通道中包括冲头装置，其在阀安装之后方便地使用以在管道的侧壁中冲孔以在管道和阀之间提供流体连通。在一个实施例中，活塞组件可滑动地容纳在第一通道中并且可选择性地在阻挡这种流动的第一正常位置和允许这种流动的第二打开位置之间移动。活塞组件通过从远程源引入的活塞组件从第一位置移动到第二位置，并在弹簧构件的影响下从第二位置移动到第一位置。在另一个实施例中，阀体包括与第一和第二通道连通的第三通道。容纳在第三通道中的活塞组件可以通过外部装置在第一开放和第二关闭位置之间选择性地移动，以允许或阻止流体流过阀门，如可能需要的。

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