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套(tao)筒(tong)(tong)(tong)式(shi)補償器的(de)內套(tao)筒(tong)(tong)(tong)與(yu)管(guan)道連(lian)接,采用(yong)高性(xing)能自壓(ya)式(shi)動密(mi)(mi)封(feng)的(de)原理與(yu)結(jie)構,它可(ke)以隨著管(guan)道的(de)伸縮(suo)在外(wai)殼(ke)內進行自由滑動,能適(shi)應任何管(guan)道的(de)密(mi)(mi)封(feng)要求(qiu).外(wai)殼(ke)與(yu)內套(tao)筒(tong)(tong)(tong)之間采用(yong)新型合成(cheng)材料密(mi)(mi)封(feng),能耐高溫,防(fang)腐蝕抗老化,適(shi)用(yong)溫度(du)-40至(zhi)150,特殊情況下可(ke)達350.既能保證軸向滑動,又(you)能保證管(guan)內介質不泄漏。