套(tao)管(guan)伸縮節由(you)能夠(gou)作軸(zhou)向相對運(yun)動(dong)的內外套(tao)管(guan)組(zu)(zu)成(cheng)。內外套(tao)管(guan)之間采用(yong)(yong)填料(liao)函密(mi)封。使用(yong)(yong)時保(bao)持(chi)兩端(duan)管(guan)子在一(yi)條軸(zhou)線上(shang)移動(dong)。產(chan)品主要有套(tao)筒(tong)(tong)(芯管(guan)),外殼,密(mi)封材(cai)料(liao)等(deng)組(zu)(zu)成(cheng).用(yong)(yong)于補償管(guan)道的軸(zhou)向伸縮及任(ren)意(yi)角度的軸(zhou)向轉動(dong).具有體積小補償量大的特點適用(yong)(yong)于熱水、蒸氣、油脂(zhi)類介質,通過滑動(dong)套(tao)筒(tong)(tong)對外套(tao)筒(tong)(tong)的滑移運(yun)動(dong),達到熱膨脹的補償。