由于膨脹(zhang)節(jie)作(zuo)(zuo)為一種(zhong)能(neng)(neng)自由伸縮的彈性(xing)補償元件,具有(you)工(gong)(gong)作(zuo)(zuo)可(ke)靠、性(xing)能(neng)(neng)良好、結(jie)構緊湊等優點,已廣(guang)泛應用在(zai)(zai)化工(gong)(gong)、冶金、核(he)能(neng)(neng)等部門(men)。在(zai)(zai)容器上(shang)采用的膨脹(zhang)節(jie),有(you)多種(zhong)形(xing)(xing)式(shi)(shi),就波紋的形(xing)(xing)狀而言,以(yi)U形(xing)(xing)膨脹(zhang)節(jie)應用得最(zui)為廣(guang)泛,其次還(huan)有(you)Ω形(xing)(xing)和(he)C形(xing)(xing)等。而在(zai)(zai)管道上(shang)采用的膨脹(zhang)節(jie)就結(jie)構補償而言,又(you)分為萬能(neng)(neng)式(shi)(shi)、壓力平衡式(shi)(shi)、鉸(jiao)鏈式(shi)(shi)以(yi)及(ji)萬向接(jie)頭式(shi)(shi)等。