| 4V300 Series | 4V | 3 | 10 - | 10 - | A - | □ |
| 规格型号 | 系列代号 | 电控方式 | 接管口径 | 标准电压 | 接电方式 |
| Specification code | Series code | Electronic control mode | Caliber size | Standard voltage | Power supply mode |
| 4V:五口二位、五口三位电 |
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| 磁阀 | 3:300 Series | 10:双位置单电控 |
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| 4V:Five ports and two |
| 20:双位置双电控 | 08:G1/4 | A:AC220V | 空白：DIN插座式 |
| positions,five ports and | 30C:三位置双电控中位封闭型 | 10:G3/8 | B:DC24V | I:出线式 |
| three positions solenoid | 30E:三位置双电控中位排气型 |
| C:AC110V | Blank:DIN Socket type |
| valve |
| 30P:三位置双电控中位压力型 |
| E:AC24V | I:wirt-outlet type |
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| 10：Daul positions |
| F:DC12V |
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| single electric control |
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| 20:Daul positions double electric control |
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| 30C:Three positions double |
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| electric control with closed middle position |
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| 30E:Three positions double electric control |
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| with middle position venting type |
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| 30P:Three positions double electric control |
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| with middle positions |
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| pressure type |
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