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本系列充液阀包含CF型、TCF型、TRCF型等，主要用于液压传动中各类液压设备活塞腔的大流量充液或排液，以提高其空程速度。其中CF型连接尺寸符合德国力士乐公司标准，故可代替进口产品。本系列充液阀为常闭式，其工作原理与液控单向阀相似，流向A→B可自由流动，而流向B→A是可控的，当X口有控制压力时，单向阀打开，B到A通，当X口泄压时，单向阀关闭，B到A不通。特点：开启压力低，自吸性能好；流道设计通畅，流阻小；控制压力低，复位可靠；具有多种变形和安装连接尺寸，使用方便；结构紧凑，外形安装较小。
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STF系列充液阀属于截止类阀，主要用于各类油缸塞腔的大流量充液或排液，以提高其空程速度和回程速度。它可通过高压法兰叠加安装于管路中，故安装维修都非常方便，可代替进口产品。本系列充液阀为常闭式，其工作原理与液控单向阀相似，流向A→B可自由流动，而流向B→A是可控的，当X口有控制压力时，单向阀打开，B到A通，当X口泄压时，单向阀关闭，B到A不通。特点：开启压力低，自吸性能好；流道设计通畅，流阻小；控制压力低，复位可靠；具有多种变形和安装连接尺寸，使用方便；结构紧凑，外形安装较小。可根据客户实际需要和要求选型,设计图纸,加工,生产；也可来图加工。
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