套(tao)(tao)管(guan)(guan)伸(shen)(shen)縮(suo)(suo)節由能(neng)夠(gou)作軸(zhou)(zhou)(zhou)向(xiang)(xiang)相(xiang)對運動(dong)(dong)的(de)(de)內(nei)外(wai)(wai)套(tao)(tao)管(guan)(guan)組(zu)成。內(nei)外(wai)(wai)套(tao)(tao)管(guan)(guan)之間采(cai)用(yong)(yong)填(tian)料函密封。使用(yong)(yong)時保持兩端管(guan)(guan)子在(zai)一條軸(zhou)(zhou)(zhou)線(xian)上移(yi)動(dong)(dong)。產品(pin)主要有(you)套(tao)(tao)筒(tong)(芯管(guan)(guan)),外(wai)(wai)殼,密封材料等組(zu)成.用(yong)(yong)于補償管(guan)(guan)道的(de)(de)軸(zhou)(zhou)(zhou)向(xiang)(xiang)伸(shen)(shen)縮(suo)(suo)及任意(yi)角(jiao)度的(de)(de)軸(zhou)(zhou)(zhou)向(xiang)(xiang)轉動(dong)(dong).具有(you)體(ti)積小補償量(liang)大的(de)(de)特點(dian)適用(yong)(yong)于熱水、蒸氣、油脂類(lei)介質(zhi)，通過(guo)滑動(dong)(dong)套(tao)(tao)筒(tong)對外(wai)(wai)套(tao)(tao)筒(tong)的(de)(de)滑移(yi)運動(dong)(dong)，達到熱膨脹的(de)(de)補償。