Seat insert in a ball valve for cryogenic applications

    公开(公告)号:US11326700B2

    公开(公告)日:2022-05-10

    申请号:US17111849

    申请日:2020-12-04

    Abstract: Systems and methods are disclosed that include providing a valve suitable for maintaining a seal and preventing fluid flow through the valve at cryogenic temperatures. The valve includes a valve body having a longitudinal axis along a flow path through the valve, a ball selectively rotatable within the valve body to selectively allow fluid flow through the valve, a seat formed within the valve body and comprising a cavity having an angled wall, and a seat insert at least partially disposed within the cavity and having a first sealing surface that forms a first sealing interface with the ball to prevent leakage through a first leakage path and a second sealing surface that forms a second sealing interface with the angled wall to prevent leakage through a second leakage path when the ball valve is selectively rotated to prevent fluid flow through the valve.

    SEALS
    2.
    发明申请
    SEALS 审中-公开

    公开(公告)号:US20200300367A1

    公开(公告)日:2020-09-24

    申请号:US16821073

    申请日:2020-03-17

    Abstract: An annular seal comprising a first energized jacket defining a first axial end of the annular seal; a plurality of seal rings defining a second axial end of the annular seal; a second energized jacket disposed between the first energized jacket and the plurality of seal rings; and a spacer disposed between the first and second energized jackets.

    SEALS
    3.
    发明申请
    SEALS 审中-公开
    密封

    公开(公告)号:US20160319936A1

    公开(公告)日:2016-11-03

    申请号:US15142719

    申请日:2016-04-29

    Inventor: Herman M. Dubois

    CPC classification number: F16J15/32 F16J15/3212 F16J15/3236

    Abstract: A seal comprising an annular jacket comprising a body defining an annular recess; a helical spring disposed within the annular recess; and a support member disposed within the helical spring to provide a biasing force against the helical spring in the operational state.

    Abstract translation: 一种包括环形护套的密封件,包括限定环形凹部的主体; 设置在所述环形凹部内的螺旋弹簧; 以及设置在螺旋弹簧内的支撑构件,以在操作状态下提供抵抗螺旋弹簧的偏置力。

    VALVE AND CHOKE STEM PACKING ASSEMBLIES
    5.
    发明申请
    VALVE AND CHOKE STEM PACKING ASSEMBLIES 审中-公开
    阀门和阀门包装组件

    公开(公告)号:US20150102247A1

    公开(公告)日:2015-04-16

    申请号:US14502892

    申请日:2014-09-30

    Abstract: A stem packing assembly including a first annular member defining a central axis, a second annular member defining a central axis coaxial with the central axis of the first annular member, and an annular energizing member defining a central axis coaxial with the central axis of the first annular member. In an embodiment, the stem packing assembly can have a leakage rate according to ISO 15848-1 of less than 1×10−4 mgs−1m−1 for at least 500 cycles at 160° C., and less than 1×10−4 mgs−1m−1 for at least 500 cycles at −46° C. In another embodiment, the first annular member can include a PAEK, the second annular member can include a PTFE, and the annular energizing member at least partially includes a PTFE.

    Abstract translation: 杆包装组件,包括限定中心轴线的第一环形构件,限定与第一环形构件的中心轴线同轴的中心轴线的第二环形构件,以及限定与第一环形构件的中心轴线同轴的中心轴线的环形施力构件 环形构件。 在一个实施方案中,茎包装组件可以具有根据ISO 15848-1的小于1×10-4mgs-1m-1的泄漏速率在160℃下至少500个循环,并且小于1×10- 4mgs-1m-1在-46℃下至少500个循环。在另一个实施方案中,第一环形构件可以包括PAEK,第二环形构件可以包括PTFE,并且环形激励构件至少部分地包括PTFE 。

    Anti-thermal shrinkage support ring for a dynamic radial seal

    公开(公告)号:US12173797B2

    公开(公告)日:2024-12-24

    申请号:US17443132

    申请日:2021-07-21

    Abstract: Systems and methods include providing a seal for an assembly. The seal includes a jacket having a base, an inner sealing leg, and an outer sealing leg, and further includes a spring disposed within the jacket between and in contact with the inner sealing leg and the outer sealing leg. The spring includes an annular support ring disposed within the spring. The support ring biases an outer diameter (OD) of the spring towards the outer sealing leg of the jacket to maintain contact pressure between the inner sealing leg of the jacket and the shaft of the assembly. The support ring controls thermal shrinkage of the spring and the outer sealing leg to maintain a seal between a housing and a shaft of the assembly when the assembly is operated at cryogenic temperatures.

    Seals
    10.
    发明授权
    Seals 有权

    公开(公告)号:US11428321B2

    公开(公告)日:2022-08-30

    申请号:US15142719

    申请日:2016-04-29

    Inventor: Herman M. Dubois

    Abstract: A seal comprising an annular jacket comprising a body defining an annular recess; a helical spring disposed within the annular recess; and a support member disposed within the helical spring to provide a biasing force against the helical spring in the operational state.

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