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D3DP系列PARKER液動式換向閥工作原理的詳細資料

D3DP系列PARKER液動式換向閥工作原理派克六通閥有兩組密封組件。每組密封組件（圖2）由閥瓣、密封圈、調整塊、調節螺釘、夾板和螺栓組成。閥瓣為碳鋼板焊件，設有加強筋，即增加閥瓣強度又起導向作用，保證每組閥瓣間的同軸度。閥瓣上鑲嵌聚氨脂橡膠圈，該材料具有耐油、耐磨損、性能穩定、密封良好和使用壽命長的特點。在凸輪的作用下，密封圈的球面與閥體密封面相接觸產生擠壓彈性變形，達到密封效果。調整塊和調節螺釘在兩組密封組件不能同步到位時可起調整作用，確保各通道密封性能同步到位。 密封組件
1夾板 2螺栓 3調整塊 4閥瓣 5密封圈 6調整螺釘
3）Parker派克閥桿與閥體隔板和上閥蓋間的軸向密封采用O形圈。
（4）Parker派克閥體隔板及上閥蓋軸孔部位鑲有銅套，可減小與O形圈間的摩擦力矩，密封組件開啟與關閉靈活，操作力矩小。 　（5）上閥蓋設有指示牌及限位螺釘，閥桿上安裝指針，明確指示各通道的接通狀況，易于操作。
 

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D3DP系列PARKER液動式換向閥工作原理