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紐曼蒂克電磁閥 NUMATICS電磁閥 L01SA4592000030 Numatics
美國紐曼蒂克NUMATICS電磁閥的產品特點:它是一種直動和先導式相結合的原理,當入口與出口沒有壓差時,通電后,電磁力直接把先導小閥和主閥關閉件依次向上提起,閥門打開。當入口與出口達到啟動壓差時,通電后,電磁力先導小閥,主閥下腔壓力上升,上腔壓力下降,從而利用壓差把主閥向上推開;斷電時,先導閥利用彈簧力或介質壓力推動關閉件,向下移動,使關閉。
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美國紐曼蒂克 numatics中國 美國NUMATICS上海 紐曼蒂克上海價格