德國BURKERT寶德直動式電磁閥原理：通電時，電磁線圈產(chǎn)生電磁力把關閉件從閥座上提起，閥門打開；斷電時，電磁力消失，彈簧把關閉件壓在閥座上，閥門關閉。特點：在真空、負壓、零壓時能正常工作，但通徑一般不超過25mm。電磁閥作為自動化儀表的一種執(zhí)行器，近年來用量急劇上升。本文分析了電磁閥的主要特點，并側(cè)重應用的角度對國內(nèi)成熟技術的發(fā)展動態(tài)作簡要綜述分別在精簡化、智能化、通用化、化方向作了考察并略對影響電磁閥技術發(fā)展的社會因素作點探討。

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BURKERT 123772S BURKERT 001412661閥體 BURKERT 密封圈
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