Differential pressure switch
    1.
    发明申请
    Differential pressure switch 失效
    差压开关

    公开(公告)号:US20090129940A1

    公开(公告)日:2009-05-21

    申请号:US11985883

    申请日:2007-11-19

    IPC分类号: F04B49/00

    CPC分类号: F04D15/0218

    摘要: The invention relates to a field adjustable pressure switch that incorporates a manually adjustable differential to set the pressure level for the trip point for the pressure switch used in conjunction with a submersible sump pump system requiring trip levels corresponding to the desired water level in the sump well for operation of the pump motor.

    摘要翻译: 本发明涉及一种现场可调压力开关,其包括可手动调节的差速器,以设置压力开关的跳闸点的压力水平,该压力开关与潜水泵泵系统一起使用,该潜水泵泵系统需要对应于油底壳井中所需水位的跳闸水平 用于泵电机的运行。

    Differential pressure switch
    2.
    发明授权
    Differential pressure switch 失效
    差压开关

    公开(公告)号:US07855345B2

    公开(公告)日:2010-12-21

    申请号:US11985883

    申请日:2007-11-19

    IPC分类号: H01H35/26

    CPC分类号: F04D15/0218

    摘要: The invention relates to a field adjustable pressure switch that incorporates a manually adjustable differential to set the pressure level for the trip point for the pressure switch used in conjunction with a submersible sump pump system requiring trip levels corresponding to the desired water level in the sump well for operation of the pump motor.

    摘要翻译: 本发明涉及一种现场可调压力开关,其包括可手动调节的差速器,以设置压力开关的跳闸点的压力水平,该压力开关与潜水泵泵系统一起使用,该潜水泵泵系统需要对应于油底壳井中所需水位的跳闸水平 用于泵电机的运行。