Sealing system
    1.
    发明授权
    Sealing system 失效
    密封系统

    公开(公告)号:US5772216A

    公开(公告)日:1998-06-30

    申请号:US731071

    申请日:1996-10-09

    IPC分类号: F16J15/40 F16K41/00 F16J15/48

    摘要: The sealing system seals a moving element in a valve. The sealing system includes an internal seal between the valve body and moving element proximate the lading and an external seal between the valve body and moving element proximate the free end of the moving element. A space for sealant is formed around the moving element between the internal and external seals. A load member is provided for pressurizing the sealant within the space to a pressure greater than the fluid pressure of the lading in the valve body cavity and the ambient pressure around the exterior of the valve. An indicator member is provided for detecting any leakage of the sealant past either the internal or external seals.

    摘要翻译: 密封系统密封阀中的移动元件。 密封系统包括在阀体和靠近提升的移动元件之间的内部密封件以及靠近移动元件的自由端的阀体和移动元件之间的外部密封。 在内部和外部密封件之间的移动元件周围形成用于密封剂的空间。 提供了一种负载构件,用于将空间内的密封剂加压到大于阀体腔中的提升的流体压力的压力以及围绕阀的外部的环境压力。 提供指示器构件用于检测密封剂通过内部或外部密封件的任何泄漏。

    Sealing system for a valve having biassed sealant under pressure
    2.
    发明授权
    Sealing system for a valve having biassed sealant under pressure 失效
    一种在压力下具有偏压密封剂的阀门密封系统

    公开(公告)号:US5607165A

    公开(公告)日:1997-03-04

    申请号:US486358

    申请日:1995-06-07

    IPC分类号: F16J15/40 F16K41/00 F16J15/20

    摘要: The sealing system seals a moving element in a valve. The sealing system includes an internal seal between the valve body and moving element proximate the lading and an external seal between the valve body and moving element proximate the free end of the moving element. A space for sealant is formed around the moving element between the internal and external seals. A load member is provided for pressurizing the sealant within the space to a pressure greater than the fluid pressure of the lading in the valve body cavity and the ambient pressure around the exterior of the valve. An indicator member is provided for detecting any leakage of the sealant past either the internal or external seals.

    摘要翻译: 密封系统密封阀中的移动元件。 密封系统包括在阀体和靠近提升的移动元件之间的内部密封件以及靠近移动元件的自由端的阀体和移动元件之间的外部密封。 在内部和外部密封件之间的移动元件周围形成用于密封剂的空间。 提供了一种负载构件,用于将空间内的密封剂加压到大于阀体腔中的提升的流体压力的压力以及围绕阀的外部的环境压力。 提供指示器构件用于检测密封剂通过内部或外部密封件的任何泄漏。