PARKER直動式比例換向閥,D4LB4C2N60X674
派克直動式比例換向閥2針狀錐面的針閥的調節旋鈕的前3圈為1，可以對流量進行靈敏地調節。后3圈為2，其具有普通的節流特性。為了減小粘度的影響，結構尺寸為400和600的閥可以采用帶矩形切口的圓柱式針閥。流量與壓力和粘度有關
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PARKER直動式比例換向閥,D4LB4C2N60X674
