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德國(guó)費(fèi)斯托電磁閥MFH-3-3/4-S：先導(dǎo)式電磁閥：原理：通電時(shí)，電磁力把先導(dǎo)孔打開，上腔室壓力迅速下降，在關(guān)閉件周圍形成上低下高的壓差，流體壓力推動(dòng)關(guān)閉件向上移動(dòng)，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室在關(guān)閥件周圍形成下低上高的壓差，流體壓力推動(dòng)關(guān)閉件向下移動(dòng)，關(guān)閉閥門。特點(diǎn)：流體壓力范圍上限較高，可任意安裝（需定制）但必須滿足流體壓差條件。

費(fèi)斯托直動(dòng)式電磁閥：原理：通電時(shí)，電磁線圈產(chǎn)生電磁力把關(guān)閉件從閥座上提起，閥門打開；斷電時(shí)，電磁力消失，彈簧把關(guān)閉件壓在閥座上，閥門關(guān)閉。特點(diǎn)：在真空、負(fù)壓、零壓時(shí)能正常工作，但通徑一般不超過25mm。

分步直動(dòng)式電磁閥：原理：它是一種直動(dòng)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，電磁力直接把先導(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(dòng)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(dòng)關(guān)閉件，向下移動(dòng)，使閥門關(guān)閉。特點(diǎn)：在零壓差或真空、高壓時(shí)亦能可*動(dòng)作，但功率較大，要求必須水平安裝。

MFH-5-1/4-S
MFH-3-1/8-SEU
MFH-5-PK-3-L
MFH-3-3/4
MFH-3-3/4-S
MFH-5-3/8-L-B
MFH-5/2-D-1-C
MFH-5/3G-D-1-C
MFH-5/3E-D-1-C
MFH-5/3B-D-1-C
MFH-5/2-D-1-FR-C
MFH-5/2-D-2-S-C
MFH-5/3G-D-2-S-C
MFH-5/3E-D-2-S-C
MFH-5/3B-D-2-S-C
MFH-5/2-D-3-S-C
MFH-5/3G-D-3-S-C
MFH-5/3E-D-3-S-C
MFH-5/3B-D-3-S-C
MFH-5/2-D-2-FR-C
MFH-5/2-D-3-FR-C
MFH-5/2-D-2-C
MFH-5/3G-D-2-C
MFH-5/3E-D-2-C
MFH-5/3B-D-2-C
MFH-5/2-D-3-C
MFH-5/3G-D-3-C
MFH-5/3E-D-3-C
MFH-5/3B-D-3-C
MFH-5/2-D-1-S-C
MFH-5/3G-D-1-S-C
MFH-5/3E-D-1-S-C
MFH-5/3B-D-1-S-C
MFH-5-1/4-B
MFH-5-1/4-S-B
MFH-5/2K-FR-NA
MFH-5/2-D-1-FR-S-C
MFH-5-3/8-B
MFH-5-3/8-S-B
MFH-5/3G-3/8-B
MFH-5/3E-3/8-B
MFH-5/3B-3/8-B
MFH-5-1/8-B
MFH-5-1/8-S-B
MFH-5/3E-1/4-B
MFH-5/3G-1/4-B
MFH-5/3B-1/4-B
MFH-5/3E-1/8-B
MFH-5/3G-1/8-B
MFH-5/3B-1/8-B
MFH-5-1/8-L-B
MFH-5-1/8-L-S-B
MFH-5/3G-1/8-S-B
MFH-5/3E-1/8-S-B
MFH-5/3B-1/8-S-B
MFH-5/3G-1/4-S-B
MFH-5/3E-1/4-S-B
MFH-5/3B-1/4-S-B
MFH-5-1/4-L-B
MFH-5/3G-3/8-S-B
MFH-5/3E-3/8-S-B
MFH-5/3B-3/8-S-B
MFH-5-3/8-L-S-B
MFH-5-1/4-L-S-B
MFH-5-1/2-S
MFH-5-PK-3
MFH-3-M5
MFH-2-M5
MFH-3-1/8-EX
MFH-3-1/4-EX
MFH-3-1/2-EX
MFH-3-1/8-S-EX
MFH-3-1/4-S-EX
MFH-3-1/2-S-EX
MFH-5-1/8-EX
MFH-5-1/4-EX
MFH-5-1/2-EX
MFH-5-1/8-S-EX
MFH-5-1/4-S-EX
MFH-5-1/2-S-EX
MFH-5-1/8-B-EX
MFH-5-1/4-B-EX
MFH-5-3/8-B-EX
MFH-5-1/8-L-B-EX
MFH-5-1/4-L-B-EX
MFH-5-3/8-L-B-EX
MFH-5-1/8-S-B-EX
MFH-5-1/4-S-B-EX
MFH-5-3/8-S-B-EX
MFH-5-1/8-L-S-B-EX
MFH-5-1/4-L-S-B-EX
MFH-5-3/8-L-S-B-EX
MFH-5/3G-1/8-B-EX
MFH-5/3G-1/4-B-EX
MFH-5/3G-3/8-B-EX
MFH-5/3G-1/8-S-B-EX
MFH-5/3G-1/4-S-B-EX
MFH-5/3G-3/8-S-B-EX
MFH-5/3E-1/8-B-EX
MFH-5/3E-1/4-B-EX
MFH-5/3E-3/8-B-EX
MFH-5/3E-1/8-S-B-EX
MFH-5/3E-1/4-S-B-EX
MFH-5/3E-3/8-S-B-EX
MFH-5/3B-1/8-B-EX
MFH-5/3B-1/4-B-EX
MFH-5/3B-3/8-B-EX
MFH-5/3B-1/8-S-B-EX
MFH-5/3B-1/4-S-B-EX
MFH-5/3B-3/8-S-B-EX
MFH-5/2-D-1-C-EX
MFH-5/2-D-2-C-EX
MFH-5/2-D-3-C-EX
MFH-5/2-D-1-S-C-EX
MFH-5/2-D-2-S-C-EX
MFH-5/2-D-3-S-C-EX
MFH-5/2-D-1-FR-C-EX
MFH-5/2-D-2-FR-C-EX
MFH-5/2-D-3-FR-C-EX
MFH-5/3G-D-1-C-EX
MFH-5/3G-D-2-C-EX
MFH-5/3G-D-3-C-EX
MFH-5/3G-D-1-S-C-EX
MFH-5/3G-D-2-S-C-EX
MFH-5/3G-D-3-S-C-EX
MFH-5/3E-D-1-C-EX
 

費(fèi)斯托德國(guó)原裝    **  假一罰十