套(tao)(tao)管(guan)(guan)(guan)伸縮節(jie)由能夠作軸向相(xiang)對運(yun)動(dong)(dong)(dong)的(de)(de)(de)內外套(tao)(tao)管(guan)(guan)(guan)組成(cheng)。內外套(tao)(tao)管(guan)(guan)(guan)之間(jian)采用填料(liao)函密(mi)(mi)封。使用時保持兩端管(guan)(guan)(guan)子(zi)在一條軸線(xian)上移動(dong)(dong)(dong)。產品(pin)主要有套(tao)(tao)筒(tong)(芯管(guan)(guan)(guan)),外殼,密(mi)(mi)封材(cai)料(liao)等組成(cheng).用于補償管(guan)(guan)(guan)道的(de)(de)(de)軸向伸縮及任意角度的(de)(de)(de)軸向轉動(dong)(dong)(dong).具有體(ti)積(ji)小補償量大的(de)(de)(de)特(te)點(dian)適用于熱水、蒸氣(qi)、油脂類介(jie)質，通過滑(hua)動(dong)(dong)(dong)套(tao)(tao)筒(tong)對外套(tao)(tao)筒(tong)的(de)(de)(de)滑(hua)移運(yun)動(dong)(dong)(dong)，達到熱膨脹的(de)(de)(de)補償。