北京中宇凡閥門有限公司
主營產品:美國沃克進口閥門,進口調節閥,進口自力式調節閥,進口減壓閥,阻火器,進口截止閥,進口蝶閥,進口高壓閥門,進口蒸汽閥門,進口燃氣閥門,進口不銹鋼閥門,進口美標閥門,進口低溫閥門,進口真空閥門,進口衛生級 ... |
北京中宇凡閥門有限公司
主營產品:美國沃克進口閥門,進口調節閥,進口自力式調節閥,進口減壓閥,阻火器,進口截止閥,進口蝶閥,進口高壓閥門,進口蒸汽閥門,進口燃氣閥門,進口不銹鋼閥門,進口美標閥門,進口低溫閥門,進口真空閥門,進口衛生級 ... |
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聯系方式:查看聯系方式
更新時間:2018-05-15 17:58:19瀏覽次數:943
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進口真空電磁閥產品概述
美國沃克(WORK)是安裝在機械式真空泵上的閥門。閥門與泵接在同一電源上,泵的開啟與停止直接控制了閥的開啟與關閉。當泵停止工作或電源突然中斷時,閥能自動將真空系統封閉,并將大氣通過泵的進氣口充入泵腔,避免泵油返流污染真空系統。真空電磁閥適用的工作介質為空氣及非腐蝕性氣體。
工作原理
常閉:當線圈通電時,先導閥芯吸合,先導孔打開,閥上腔卸壓,活塞靠下腔介質壓力推動,電磁閥打開。
當線圈斷電時,先導閥芯靠彈簧復位,先導孔關閉,閥上腔由活塞節流孔增壓和復位彈簧的推力,電磁閥關閉。
常開:當線圈通電時,先導閥芯靠彈簧復位,先導孔關閉,閥上腔由活塞節流孔增壓和復位彈簧的推力,電磁閥關閉。
當線圈斷電時,先導閥芯靠彈簧復位,先導孔打開,閥上腔卸壓,活塞靠下腔介質壓力推動,電磁閥打開
主要技術參數
詳細參數:http:///cn/products/534.htm
公稱壓力:105~10-2Pa
閥門漏率:≤6.7×10-3Pa.L/S.
適用溫度:-30~+50℃
線圍溫升:≤65℃
開閉時間:≤3S
電源電壓:220V/50Hz
閥體、閥蓋、閥板:碳鋼或鋁合金
密封圈:橡膠
公稱通徑:DN15-100mm
更多的詳細資料咨詢。北京中宇凡閥門有限公司經營進口球閥,進口蝶閥,進口電磁閥,進口調節閥以及其他各類進口閥門。產品品質優良,竭誠為您服務,咨詢訂購。
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