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    Liquid check valve with controlled gas vent
    1.
    发明授权
    Liquid check valve with controlled gas vent 失效
    液体检查阀与控制气体通风

    公开(公告)号：US3610268A

    公开(公告)日：1971-10-05

    申请号：US3610268D

    申请日：1970-01-07

    申请人： REDA PUMP CO

    发明人： ARUTUNOFF ARMAIS

    IPC分类号： F16K24/04 ,  F16K45/00

    CPC分类号： F16K24/04 ,  Y10T137/2695 ,  Y10T137/7846 ,  Y10T137/86292 ,  Y10T137/86919 ,  Y10T137/88038

    摘要： A gas venting check valve assembly for connection between the discharge end of a submergible, centrifugal pump in an oil well and the inlet end of a delivery tubing, having a valve member which normally opens under the influence of the oil being pumped and seats under the weight of the column of pumped oil above the pump when the pump is stopped or when the gaseous content of the fluid being pumped is sufficient to prevent the maintenance of the necessary pressure to support the column of pumped oil. The valve housing is provided with a gas vent passageway below the valve seat which is closed by the valve proper when the latter is in open position and is opened to permit the venting of gas when the valve proper is seated.