SHUT-OFF TRIM INCLUDING SPRING LOADED CHECK VALVE
    3.
    发明申请
    SHUT-OFF TRIM INCLUDING SPRING LOADED CHECK VALVE 审中-公开
    SHUT-OFF TRIM包括弹簧加载检查阀

    公开(公告)号:US20140174576A1

    公开(公告)日:2014-06-26

    申请号:US14157428

    申请日:2014-01-16

    Inventor: SINA ALIKHANI

    Abstract: In accordance with the present invention, there is provided a bi-directional shut-off trim for a valve which possesses the functional attributes of a pilot operated trim and a balanced trim through the integration of a spring loaded check valve into a pilot trim. In forward flow isolation, the bi-directional shut-off trim of the present invention acts as a normal pilot operated trim. In reverse flow, the check valve of the shut-off trim opens to balance the pressure on either side of the plug thereof.

    Abstract translation: 根据本发明,提供了一种用于阀的双向关闭装置,其通过将弹簧加载的止回阀整合到导向装置中而具有先导操纵装饰件和平衡装饰件的功能属性。 在正向流隔离中,本发明的双向关闭装置用作正常的先导操作装饰件。 在逆流中,关闭装置的止回阀打开以平衡其插头两侧的压力。

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