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    ATOS電磁閥里有密閉的腔，在不同位置開有通孔，每個孔連接不同的油管，腔中間是活塞，兩面是兩塊電磁鐵，哪面的磁鐵線圈通電閥體就會被吸引到哪邊，通過控制閥體的移動來開啟或關閉不同的排油孔，而進油孔是常開的，液壓油就會進入不同的排油管，然后通過油的壓力來推動油缸的活塞，活塞又帶動活塞桿，活塞桿帶動機械裝置。這樣通過控制電磁鐵的電流通斷就控制了機械運動。

    ATOS電磁閥主要分類：

    1、ATOS電磁閥從原理上分為(wei)三(san)大類：

    1）ATOS直動式電磁(ci)閥：

    ATOS電(dian)磁(ci)閥原理：通(tong)電(dian)時，電(dian)磁(ci)線圈產生電(dian)磁(ci)力(li)把關閉件從(cong)閥座上提起，閥門(men)打(da)開；斷電(dian)時，電(dian)磁(ci)力(li)消失，彈簧把關閉件壓在(zai)閥座上，閥門(men)關閉。

    ATOS電磁閥特點：在真空、負壓、零壓時能正常(chang)工作，但通徑一般不超過25mm。

    2）分步直(zhi)動式電(dian)磁閥：

    ATOS電(dian)(dian)磁閥(fa)(fa)(fa)(fa)原理(li)：它是一種直(zhi)動和(he)先(xian)導(dao)式相結合的原理(li)，當入口與(yu)出口沒有壓(ya)(ya)差時，通(tong)電(dian)(dian)后(hou)，電(dian)(dian)磁力(li)(li)直(zhi)接把先(xian)導(dao)小閥(fa)(fa)(fa)(fa)和(he)主閥(fa)(fa)(fa)(fa)關閉(bi)件依次向上(shang)提起，閥(fa)(fa)(fa)(fa)門打開(kai)。當入口與(yu)出口達到啟(qi)動壓(ya)(ya)差時，通(tong)電(dian)(dian)后(hou)，電(dian)(dian)磁力(li)(li)先(xian)導(dao)小閥(fa)(fa)(fa)(fa)，主閥(fa)(fa)(fa)(fa)下(xia)(xia)腔壓(ya)(ya)力(li)(li)上(shang)升，上(shang)腔壓(ya)(ya)力(li)(li)下(xia)(xia)降，從而利用(yong)壓(ya)(ya)差把主閥(fa)(fa)(fa)(fa)向上(shang)推(tui)開(kai)；斷(duan)電(dian)(dian)時，先(xian)導(dao)閥(fa)(fa)(fa)(fa)利用(yong)彈簧力(li)(li)或介質壓(ya)(ya)力(li)(li)推(tui)動關閉(bi)件，向下(xia)(xia)移動，使閥(fa)(fa)(fa)(fa)門關閉(bi)。

    ATOS電(dian)磁(ci)閥(fa)特點：在零壓差或真空(kong)、高(gao)壓時亦能可*動作，但功率較大，要求(qiu)必須水平安裝。

    3）先導式(shi)電(dian)磁閥：

    ATOS電(dian)(dian)磁(ci)(ci)閥原理：通(tong)(tong)電(dian)(dian)時，電(dian)(dian)磁(ci)(ci)力(li)把(ba)先(xian)導(dao)(dao)孔(kong)(kong)打(da)開(kai)，上(shang)腔(qiang)室壓力(li)迅(xun)速下降，在(zai)關(guan)(guan) 閉(bi)件周圍形(xing)(xing)成上(shang)低(di)下高的壓差，流(liu)體(ti)壓力(li)推動關(guan)(guan)閉(bi)件向上(shang)移動，閥門打(da)開(kai)；斷(duan)電(dian)(dian)時，彈簧力(li)把(ba)先(xian)導(dao)(dao)孔(kong)(kong)關(guan)(guan)閉(bi)，入(ru)口(kou)壓力(li)通(tong)(tong)過旁通(tong)(tong)孔(kong)(kong)迅(xun)速腔(qiang)室在(zai)關(guan)(guan)閥件周圍形(xing)(xing)成下低(di)上(shang)高的壓差，流(liu)體(ti)壓力(li)推動關(guan)(guan)閉(bi)件向下移動，關(guan)(guan)閉(bi)閥門。

    ATOS電磁閥(fa)特(te)點：流(liu)體壓力范圍(wei)上(shang)限較高，可任意安(an)裝（需定制）但(dan)必(bi)須滿足流(liu)體壓差條(tiao)件。

    2、電磁閥(fa)從閥(fa)結(jie)(jie)(jie)構(gou)和材(cai)料上的(de)不同與原理上的(de)區別(bie)，分(fen)為(wei)六(liu)個分(fen)支小類：直動(dong)(dong)膜(mo)片(pian)結(jie)(jie)(jie)構(gou)、分(fen)步(bu)直動(dong)(dong)膜(mo)片(pian)結(jie)(jie)(jie)構(gou)、先導(dao)(dao)膜(mo)片(pian)結(jie)(jie)(jie)構(gou)、直動(dong)(dong)活(huo)塞(sai)結(jie)(jie)(jie)構(gou)、分(fen)步(bu)直動(dong)(dong)活(huo)塞(sai)結(jie)(jie)(jie)構(gou)、先導(dao)(dao)活(huo)塞(sai)結(jie)(jie)(jie)構(gou)。

    3、電(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)按照功能分類：水(shui)用(yong)電(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)、蒸(zheng)汽(qi)電(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)、制冷電(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)、低溫(wen)電(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)、燃氣電(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)、消防電(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)、氨用(yong)電(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)、氣體電(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)、液體電(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)、微型(xing)電(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)、脈沖電(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)、液壓電(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa) 常開電(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)、油(you)用(yong)電(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)、直流電(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)、高壓電(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)、防爆電(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)等。

意大利ATOS電磁閥型號表：

DHU-0610/A-X 24DC 20
DHU-0610/FI/NC-X 24DC 20
DHU-0610-X 24DC 20
DHU-0610-X 48DC 20
DHU-0611-X 24DC
DHU-0614/A-X 24DC 20
DHU-0614-X 24DC 20
DHU-06191-X 24DC 20
DHU-06194-X 24DC 20
DHU-0630/2/A-X 24DC
DHU-0630/2-X 24DC
DHU-0631/2/A-X 24DC
DHU-0631/2/FC-X 24DC 20
DHU-0631/2-X 24DC
DHU-0632/2/A-X 24DC 20
DHU-0632/2-X 24DC 20
DHU-0639/C-X 24DC 20
DHU-0671-X 24DC
DHU-0710/L1-X 24DC 20
DHU-0710-X 24DC
DHU-0711/WP-X 24DC 20
DHU-07119-X 24DC 20
DHU-0711-X 24DC
DHU-0713/1-X 24DC
DHU-0713/WP-X 24DC 20
DHU-0713P-X 24DC 20
DHU-0713-X 24DC
DHU-07149-X 24DC 20
DHU-0714-X 24DC
DHU-0718-X 24DC
DHU-0750/2/FI/NC-X 24DC 20
DHU-0750/2-X 24DC
DHU-0751/2-00 20 /WG
DHU-0751/2P-X 24DC 20
DHU-0751/2-X 24DC
DHU-6751/2P-X 24DC