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本系列充液閥包含CF型、TCF型、TRCF型等，主要用于液壓傳動中各類液壓設備活塞腔的大流量充液或排液，以提高其空程速度。其中CF型連接尺寸符合德國力士樂公司標準，故可代替進口產品。本系列充液閥為常閉式，其工作原理與液控單向閥相似，流向A→B可自由流動，而流向B→A是可控的，當X口有控制壓力時，單向閥打開，B到A通，當X口泄壓時，單向閥關閉，B到A不通。特點：開啟壓力低，自吸性能好；流道設計通暢，流阻小；控制壓力低，復位可靠；具有多種變形和安裝連接尺寸，使用方便；結構緊湊，外形安裝較小。

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STF系列充液閥屬于截止類閥，主要用于各類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。它可通過高壓法蘭疊加安裝于管路中，故安裝維修都非常方便，可代替進口產品。本系列充液閥為常閉式，其工作原理與液控單向閥相似，流向A→B可自由流動，而流向B→A是可控的，當X口有控制壓力時，單向閥打開，B到A通，當X口泄壓時，單向閥關閉，B到A不通。特點：開啟壓力低，自吸性能好；流道設計通暢，流阻小；控制壓力低，復位可靠；具有多種變形和安裝連接尺寸，使用方便；結構緊湊，外形安裝較小。可根據客戶實際需要和要求選型,設計圖紙,加工,生產；也可來圖加工。