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公开(公告)号:US4863098A
公开(公告)日:1989-09-05
申请号:US188839
申请日:1988-05-02
IPC分类号: G05D7/06
CPC分类号: G05D23/1393 , G05D7/005 , Y10T137/2499
摘要: A pilot operated flow modulating control valve assembly with a pilot valve to initiate opening and closing of a main control valve, and a secondary valve for separately controlling pressure across the control valve to achieve its modulated positions.
摘要翻译: 具有先导阀的先导操作的流量调节控制阀组件,用于启动主控制阀的打开和关闭,以及用于分别控制控制阀两端的压力以实现其调节位置的次级阀。
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公开(公告)号:US4790346A
公开(公告)日:1988-12-13
申请号:US95429
申请日:1987-09-11
CPC分类号: F16K31/0655 , F16K29/00 , Y10T137/6253
摘要: A fluid flow control valve with a rotatable valve member offset from its outlet seat so it engages in a different position at each closure and requires less opening force.
摘要翻译: 一种流体流量控制阀,其具有从其出口座偏移的可旋转阀构件,使得其在每个闭合件处接合在不同的位置,并且需要较少的开启力。
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