REXROTH電磁閥4WE 6 C6X/EG96N9K4/B10現(xiàn)貨

REXROTH電磁閥的原理：它是一種直動和先導(dǎo)式相結(jié)合的原理，當(dāng)入口與出口沒有壓差時(shí)，通電后，電磁力把先導(dǎo)小閥和主閥關(guān)閉件依次向上提起，閥門打開。當(dāng)入口與出口達(dá)到啟動壓差時(shí)，通電后，電磁力先導(dǎo)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(shí)，先導(dǎo)閥利用彈簧力或介質(zhì)壓力推動關(guān)閉件，向下移動，使閥門關(guān)閉。特點(diǎn)：在零壓差或真空、高壓時(shí)亦能可*動作，但功率較大，要求必須水平安裝。先導(dǎo)式電磁閥：原理：通電時(shí)，電磁力把先導(dǎo)孔打開，上腔壓力迅速下降，在關(guān)閉件周圍形成上低下高的壓差，流體壓力推動關(guān)閉件向上移動，閥門打開；斷電時(shí)，彈簧力把先導(dǎo)孔關(guān)閉，入口壓力通過旁通孔迅速腔在關(guān)閥件周圍形成下低上高的壓差，流體壓力推動關(guān)閉件向下移動，關(guān)閉閥門。 REXROTH電磁閥，力士樂電磁閥，Rexroth電磁閥
訂購REXROTH力士樂電磁閥型：
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R900700983 4WE 6 Y2-6X/EG96N2K4   力士樂兩位五通電磁閥即刻響應(yīng)增加的感應(yīng)壓力，推動斜盤使排污泵排量緩緩增加，節(jié)流環(huán)（向閥）的壓力開始上升。這種作用可以維持節(jié)流環(huán)（向閥）進(jìn)出口的壓力恒定，流量恒定，從而達(dá)到絞車速度的恒定。節(jié)流環(huán)（向閥）進(jìn)出口的壓降 delta P 維持在10-30公斤。當(dāng)向閥回到中位，負(fù)載感應(yīng)壓力釋放至油箱，排污泵負(fù)載感應(yīng)控制閥維持在相當(dāng)于或略高于設(shè)定壓降值，變量排污泵于起始待命狀態(tài)。由于變量排污泵只根據(jù)負(fù)載感應(yīng)驅(qū)動器的指令大小來輸出流量，負(fù)載感應(yīng)控制方式無節(jié)流發(fā)熱損耗，節(jié)能效應(yīng)明顯。正如上述例子所示，驅(qū)動控制效果明顯改善。負(fù)載感應(yīng)控制可以保證流量控制的恒定，而不受排污泵驅(qū)動軸速度變化的影響。
力士樂二位五通向閥體內(nèi)有一上腔和一下腔，上、下腔之間有一通道，上腔中有一由鋼球與上頂桿組成的上單向閥，下腔中有一由鋼球與彈簧組成的下單向閥，兩個(gè)單向閥之間通過一長度稍長于通道的支桿構(gòu)成一向閥，其特征在于：在該向閥的一側(cè)另有一與其結(jié)構(gòu)相同并平行的向閥；所述兩個(gè)向閥的上腔與回油通道0連通，兩個(gè)向閥的下腔與壓力油通道P連通；且其中一個(gè)向閥的通道與工作油路A連通，另一向閥的通道與工作油路B連通；R900700931 4WE 6 D46-6X/OFEG24N9DK35L/V SO407=AN
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REXROTH電磁閥4WE 6 C6X/EG96N9K4/B10現(xiàn)貨