套(tao)(tao)管(guan)(guan)伸縮節由能夠作軸(zhou)(zhou)向(xiang)相對(dui)運動的(de)內外套(tao)(tao)管(guan)(guan)組成。內外套(tao)(tao)管(guan)(guan)之間采用(yong)(yong)(yong)填料(liao)(liao)函(han)密(mi)封(feng)。使用(yong)(yong)(yong)時保持兩(liang)端管(guan)(guan)子在一條軸(zhou)(zhou)線上移動。產(chan)品主要有套(tao)(tao)筒(tong)(芯管(guan)(guan)),外殼,密(mi)封(feng)材料(liao)(liao)等(deng)組成.用(yong)(yong)(yong)于補(bu)償(chang)(chang)管(guan)(guan)道的(de)軸(zhou)(zhou)向(xiang)伸縮及任意(yi)角度的(de)軸(zhou)(zhou)向(xiang)轉動.具(ju)有體積小(xiao)補(bu)償(chang)(chang)量大的(de)特(te)點適用(yong)(yong)(yong)于熱水、蒸氣、油脂類介質(zhi),通(tong)過滑動套(tao)(tao)筒(tong)對(dui)外套(tao)(tao)筒(tong)的(de)滑移運動,達到熱膨脹的(de)補(bu)償(chang)(chang)。