套(tao)(tao)管(guan)伸縮節由(you)能(neng)夠(gou)作軸(zhou)(zhou)向(xiang)相對運(yun)動(dong)(dong)的內外(wai)套(tao)(tao)管(guan)組(zu)成。內外(wai)套(tao)(tao)管(guan)之(zhi)間采用填料函密(mi)封。使(shi)用時保持兩端管(guan)子在(zai)一(yi)條軸(zhou)(zhou)線上移動(dong)(dong)。產品主要有(you)套(tao)(tao)筒(tong)(芯管(guan)),外(wai)殼,密(mi)封材料等組(zu)成.用于(yu)補償(chang)管(guan)道的軸(zhou)(zhou)向(xiang)伸縮及任(ren)意(yi)角(jiao)度(du)的軸(zhou)(zhou)向(xiang)轉動(dong)(dong).具有(you)體(ti)積(ji)小補償(chang)量大的特點(dian)適用于(yu)熱(re)水、蒸氣、油脂類介質(zhi)，通過滑動(dong)(dong)套(tao)(tao)筒(tong)對外(wai)套(tao)(tao)筒(tong)的滑移運(yun)動(dong)(dong)，達到熱(re)膨脹的補償(chang)。