套(tao)(tao)管(guan)(guan)伸縮(suo)節由能夠作軸向(xiang)相對(dui)運動(dong)(dong)(dong)(dong)的(de)(de)(de)(de)內外套(tao)(tao)管(guan)(guan)組成(cheng)。內外套(tao)(tao)管(guan)(guan)之(zhi)間采用(yong)(yong)填(tian)料(liao)函(han)密(mi)封。使用(yong)(yong)時(shi)保持兩端管(guan)(guan)子在(zai)一條軸線上移(yi)(yi)動(dong)(dong)(dong)(dong)。產(chan)品主要有(you)套(tao)(tao)筒(tong)(芯管(guan)(guan)),外殼,密(mi)封材(cai)料(liao)等組成(cheng).用(yong)(yong)于補償管(guan)(guan)道(dao)的(de)(de)(de)(de)軸向(xiang)伸縮(suo)及任(ren)意(yi)角度(du)的(de)(de)(de)(de)軸向(xiang)轉動(dong)(dong)(dong)(dong).具(ju)有(you)體(ti)積小(xiao)補償量大的(de)(de)(de)(de)特點適(shi)用(yong)(yong)于熱(re)水、蒸(zheng)氣、油脂類介質(zhi)，通過滑(hua)動(dong)(dong)(dong)(dong)套(tao)(tao)筒(tong)對(dui)外套(tao)(tao)筒(tong)的(de)(de)(de)(de)滑(hua)移(yi)(yi)運動(dong)(dong)(dong)(dong)，達到熱(re)膨脹的(de)(de)(de)(de)補償。