REXROTH電磁閥德國力士樂電磁閥

REXROTH電磁閥德國力士樂電磁閥 3WE6A6X/E...N9K4 R900561180 R900905662
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REXROTH電磁閥德國力士樂電磁閥
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4WE10M3X/C...N9K4 R9005009321.REXROTH電磁閥從原理上分為三大類：  REXROTH電磁閥1）直動式REXROTH電磁閥：
原理：通電時，電磁線圈產(chǎn)生電磁力把關閉件從閥座上提起，閥門打開；斷電時，電磁力消失，彈簧把關閉件壓在閥座上，閥門關閉。
特點：在真空、負壓、零壓時能正常工作，但通徑一般不超過25mm。
2）分步直動式REXROTH電磁閥：
原理： 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，使閥門關閉。
特點： 在零壓差或真空、高壓時亦能可*動作，但功率較大，要求必須水平安裝。