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填(tian)料改集式(shi)密(mi)封(feng)是一種(zhong)傳統的接觸(chu)式(shi)密(mi)封(feng),應用(yong)(yong)較廣,結構(gou)簡單,更換方便,成本低廉。可用(yong)(yong)于旋(xuan)轉、往復、螺(luo)旋(xuan)運(yun)動的密(mi)封(feng),對旋(xuan)轉運(yun)動的軸允許(xu)有軸向竄(cuan)動,用(yong)(yong)于輸送一般(ban)介質,...