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執行器知識當前位置:首頁執行器知識

【電動球閥】電動球閥和電磁閥的區別所在

發布日期:[2020-08-10]     點擊率:

電動球閥和電磁閥的主要區別

一、泄漏問題

電動球閥動作原理為角行程,雙面密封,密封性能好,不易泄漏。電磁閥動作原理為直行程,為膜片或先導式,密封面對介質的純凈度要求非常高,介質中有雜質就容易引起泄漏。


防爆電動球閥

二、安裝位置要求

電動球閥對安裝角度沒有要求。電磁閥為直行程動作原理,密封需要靠閥芯自身重力與電磁鐵的作用力來實現,故電磁閥只能水平安裝,其它角度安裝會引起電磁閥泄漏。


三、使用壽命

電動球閥執行器開關動作到位后即由內部微動開關斷電,且具有工位保持功能,只需要在動作時給電,到位后電機就不帶電,使用壽命較電磁閥長,且性能穩定。電磁閥的啟閉依靠線圈通電才能動作,工位保持時需要線圈一直通電(如常閉電磁閥要長時間打開),線圈長時間帶電會發熱,容易造成線圈燒斷,這種故障比較常見的故障


四、防護等級

電動球閥執行器由殼體保護,防護等級IP67(可選IP68),灰塵與濕氣基本不能侵蝕執行器內部,性能較穩定。電磁閥結構簡單,防護等級較低,容易受外界灰塵與空氣、溫度影響。


精小型電動球閥

五、成本差別

電動球閥對于1.6MPa算是常壓,球閥可以做到13MPa,且成本較1.6MPa差別不是很大,尤其高壓成本相對電磁閥有很大優勢。對于電磁閥,1.0MPa以上算是中高壓,高壓電磁閥一般價格都很貴。


六、功能差別

電動執行器上帶有手動操作裝置,可以手動操作控制閥門開/關,不需要安裝旁通備用。而一般電磁閥都沒有手動操作功能,管路上需要安裝旁通手動閥備用。

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浙江澳翔專業生產電動執行器、電動閥門、電動球閥、電動蝶閥、電動調節閥二十多年。

午夜樱桃成视频人APP观看
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