原理：它是一種直動和先導(dǎo)式相結(jié)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(dǎo)小閥和主閥關(guān)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(dǎo)小閥，

10通經(jīng)G03

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DWH-G03-C2-ADWH-G03-C4-ADWH-G03-C6-ADWH-G03-C60-A240-20

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DWH-G03-C2-ADWH-G03-C4-A110-20 DWH-G03-C6-ADWH-G03-C60-A110-20

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DWH-G03-B2-D24-20,DWH-G03-D2-D24-20,DWH-G03-C3-D24-20,DWH-G03-B3-D24-20,

DWH-G03-B2-ADWH-G03-D2-ADWH-G03-C3-ADWH-G03-B3-A

DWH-G03-B2-ADWH-G03-D2-ADWH-G03-C3-ADWH-G03-B3-A

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