套(tao)(tao)管(guan)(guan)(guan)(guan)伸縮(suo)節由能夠作軸(zhou)向相(xiang)對運(yun)動(dong)的(de)(de)(de)內外套(tao)(tao)管(guan)(guan)(guan)(guan)組(zu)成。內外套(tao)(tao)管(guan)(guan)(guan)(guan)之(zhi)間采用(yong)(yong)填料函(han)密封(feng)(feng)。使用(yong)(yong)時保持兩端管(guan)(guan)(guan)(guan)子(zi)在一條(tiao)軸(zhou)線上(shang)移(yi)動(dong)。產品主(zhu)要有套(tao)(tao)筒(tong)(芯管(guan)(guan)(guan)(guan)),外殼,密封(feng)(feng)材料等組(zu)成.用(yong)(yong)于(yu)補(bu)償(chang)管(guan)(guan)(guan)(guan)道的(de)(de)(de)軸(zhou)向伸縮(suo)及任意角(jiao)度的(de)(de)(de)軸(zhou)向轉動(dong).具有體(ti)積小補(bu)償(chang)量大的(de)(de)(de)特點適(shi)用(yong)(yong)于(yu)熱水、蒸氣、油脂類介質，通過滑動(dong)套(tao)(tao)筒(tong)對外套(tao)(tao)筒(tong)的(de)(de)(de)滑移(yi)運(yun)動(dong)，達到熱膨脹的(de)(de)(de)補(bu)償(chang)。