套(tao)(tao)(tao)管伸(shen)縮節由能夠作軸(zhou)(zhou)向(xiang)(xiang)相對(dui)運動(dong)(dong)的內外套(tao)(tao)(tao)管組(zu)(zu)成(cheng)。內外套(tao)(tao)(tao)管之間采用(yong)(yong)填料函密(mi)封。使用(yong)(yong)時保持兩端管子在一條軸(zhou)(zhou)線上移動(dong)(dong)。產品主要有套(tao)(tao)(tao)筒(tong)(芯管),外殼(ke),密(mi)封材(cai)料等組(zu)(zu)成(cheng).用(yong)(yong)于(yu)補(bu)償(chang)管道的軸(zhou)(zhou)向(xiang)(xiang)伸(shen)縮及任意角度的軸(zhou)(zhou)向(xiang)(xiang)轉(zhuan)動(dong)(dong).具(ju)有體積小補(bu)償(chang)量大的特點適用(yong)(yong)于(yu)熱(re)水、蒸氣、油脂類(lei)介質，通過(guo)滑動(dong)(dong)套(tao)(tao)(tao)筒(tong)對(dui)外套(tao)(tao)(tao)筒(tong)的滑移運動(dong)(dong)，達到熱(re)膨脹(zhang)的補(bu)償(chang)。