套(tao)(tao)管伸縮節由(you)能夠作軸向相對運動(dong)的(de)(de)內外(wai)套(tao)(tao)管組(zu)成。內外(wai)套(tao)(tao)管之(zhi)間(jian)采用(yong)(yong)填料函密封。使用(yong)(yong)時保持(chi)兩端管子在一條軸線(xian)上移動(dong)。產品主(zhu)要有(you)(you)套(tao)(tao)筒(tong)(tong)(芯管),外(wai)殼,密封材料等組(zu)成.用(yong)(yong)于補償管道(dao)的(de)(de)軸向伸縮及任意(yi)角(jiao)度(du)的(de)(de)軸向轉動(dong).具(ju)有(you)(you)體積小(xiao)補償量大的(de)(de)特點(dian)適用(yong)(yong)于熱(re)水(shui)、蒸氣(qi)、油脂(zhi)類介質，通過滑動(dong)套(tao)(tao)筒(tong)(tong)對外(wai)套(tao)(tao)筒(tong)(tong)的(de)(de)滑移運動(dong)，達到熱(re)膨脹的(de)(de)補償。