德國BURKERT寶德電磁閥上?？?/STRONG>

斷電時線圈磁場消失,動閥芯利用反力彈簧,使動靜閥心閉和,內流物質被阻斷.

一般動作電壓有220V,  36V,  24V ,  12V,  6.3V

配合定時器使用,可實現光照和CO2的自動開斷主閥閥杯上的流體經副閥流走，減少了作用在主閥閥杯上的壓力，當主閥閥杯上的壓力減少到一定值時，銜鐵帶動主閥閥杯，并利用壓差而使主閥閥杯開啟，介質流通。線圈斷電后，電磁力消失，銜鐵因自重下落復位。（電磁閥的作用）
同時依靠介質壓力，主副閥得以緊密關閉。常開電磁閥，線圈通電后由于吸力作用，動鐵芯下移，把副閥閥塞壓下，副閥關閉，主閥閥杯內壓力上升，當壓力升到一定值時，
寶德電磁閥主閥閥杯的上下壓差一樣，由于電磁力作用，動鐵芯推動主閥閥杯下，壓緊主閥閥座，閥門關閉。線圈斷電時，電磁吸力為零，副閥閥塞和動鐵芯由于彈簧作用向上提起，
副閥打開，主閥閥杯上的流體經副閥流走，減少了作用在主閥閥杯上的壓力，當主閥閥杯上的壓力減少到一定值時，利用壓差把主閥閥杯推起.
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138256C 0780-T-02,0-FF-MS-FB02-110/UC-CD 138257D 0780-T-02,0-FF-MS-FB02-230/UC-CD 
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