套(tao)管(guan)(guan)(guan)伸(shen)縮節由能夠作軸(zhou)向相對(dui)運(yun)動(dong)的(de)內外(wai)(wai)套(tao)管(guan)(guan)(guan)組(zu)(zu)成。內外(wai)(wai)套(tao)管(guan)(guan)(guan)之(zhi)間(jian)采用(yong)填料函密(mi)封(feng)。使用(yong)時保持兩端管(guan)(guan)(guan)子(zi)在(zai)一條(tiao)軸(zhou)線上移(yi)動(dong)。產品主(zhu)要有(you)套(tao)筒(tong)(芯管(guan)(guan)(guan)),外(wai)(wai)殼(ke),密(mi)封(feng)材(cai)料等組(zu)(zu)成.用(yong)于補償(chang)管(guan)(guan)(guan)道的(de)軸(zhou)向伸(shen)縮及(ji)任意(yi)角度的(de)軸(zhou)向轉動(dong).具有(you)體(ti)積小(xiao)補償(chang)量(liang)大(da)的(de)特點適用(yong)于熱水、蒸氣、油脂類介質，通(tong)過滑(hua)(hua)動(dong)套(tao)筒(tong)對(dui)外(wai)(wai)套(tao)筒(tong)的(de)滑(hua)(hua)移(yi)運(yun)動(dong)，達到熱膨脹(zhang)的(de)補償(chang)。