科恩科KNKE電磁真空帶充氣閥,Electromagnetic vacuum charging valve,是安裝在機械式真空泵上的專(zhuan) 用閥門。閥門與(yu) 泵接在同一電源上,泵的開啟與(yu) 停止直接控製了閥的開啟與(yu) 關(guan) 閉。當泵停止工作或電源突然中斷時,閥能自動將真空係統封閉,並將大氣通過泵的進氣口充入泵腔,避免泵油返流汙染真空係統。
適用的工作介質為(wei) 空氣及非腐蝕性氣體(ti) 。
electro-vacuum charging valve is a safety valve for vacuum, pump. It is mounted at the intake nozzle of vacuum pump, synchronously opened and closed with the vacuum pump. In case that vacuum pump stops working or power supply is suddenly broken off, valve will be cosed automatically to keep the vacuum system vacuum and the air charged into the cavity of vacuum pump, thus to prevent pump oil from reverse flow that can pollute the vacuum system. Applicable medium can be pure air and noncorrosive gases.