由于膨脹節作為(wei)一種能(neng)自由伸縮的彈性(xing)補償元件(jian)，具有(you)工(gong)作可靠(kao)、性(xing)能(neng)良(liang)好、結構(gou)緊湊等優點，已廣泛(fan)應用(yong)(yong)在(zai)化工(gong)、冶金、核能(neng)等部門(men)。在(zai)容(rong)器(qi)上采(cai)用(yong)(yong)的膨脹節，有(you)多種形(xing)(xing)(xing)式(shi)(shi)，就波紋的形(xing)(xing)(xing)狀而言(yan)，以U形(xing)(xing)(xing)膨脹節應用(yong)(yong)得(de)最為(wei)廣泛(fan)，其次還有(you)Ω形(xing)(xing)(xing)和(he)C形(xing)(xing)(xing)等。而在(zai)管道上采(cai)用(yong)(yong)的膨脹節就結構(gou)補償而言(yan)，又分為(wei)萬能(neng)式(shi)(shi)、壓力(li)平衡(heng)式(shi)(shi)、鉸鏈式(shi)(shi)以及萬向接頭(tou)式(shi)(shi)等。