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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。
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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。
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