管(guan)(guan)(guan)(guan)(guan)(guan)(guan)件(jian)是將管(guan)(guan)(guan)(guan)(guan)(guan)(guan)子連(lian)(lian)接成管(guan)(guan)(guan)(guan)(guan)(guan)(guan)路的(de)(de)零件(jian)。根據連(lian)(lian)接方(fang)法(fa)可分為承插式管(guan)(guan)(guan)(guan)(guan)(guan)(guan)件(jian)、螺紋管(guan)(guan)(guan)(guan)(guan)(guan)(guan)件(jian)、法(fa)蘭管(guan)(guan)(guan)(guan)(guan)(guan)(guan)件(jian)和(he)焊接管(guan)(guan)(guan)(guan)(guan)(guan)(guan)件(jian)四類(lei)。多用(yong)(yong)(yong)與管(guan)(guan)(guan)(guan)(guan)(guan)(guan)子相(xiang)同的(de)(de)材料制成。有彎頭(tou)（肘管(guan)(guan)(guan)(guan)(guan)(guan)(guan)）、法(fa)蘭、三(san)通(tong)(tong)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)、四通(tong)(tong)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)（十(shi)字(zi)頭(tou)）和(he)異(yi)徑(jing)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)（大小頭(tou)）等。彎頭(tou)用(yong)(yong)(yong)于管(guan)(guan)(guan)(guan)(guan)(guan)(guan)道轉彎的(de)(de)地(di)(di)方(fang)；法(fa)蘭用(yong)(yong)(yong)于使(shi)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)子與管(guan)(guan)(guan)(guan)(guan)(guan)(guan)子相(xiang)互連(lian)(lian)接的(de)(de)零件(jian)，連(lian)(lian)接于管(guan)(guan)(guan)(guan)(guan)(guan)(guan)端，三(san)通(tong)(tong)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)用(yong)(yong)(yong)于三(san)根管(guan)(guan)(guan)(guan)(guan)(guan)(guan)子匯集的(de)(de)地(di)(di)方(fang)；四通(tong)(tong)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)用(yong)(yong)(yong)于四根管(guan)(guan)(guan)(guan)(guan)(guan)(guan)子匯集的(de)(de)地(di)(di)方(fang)；異(yi)徑(jing)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)用(yong)(yong)(yong)于不同管(guan)(guan)(guan)(guan)(guan)(guan)(guan)徑(jing)的(de)(de)兩根管(guan)(guan)(guan)(guan)(guan)(guan)(guan)子相(xiang)連(lian)(lian)接的(de)(de)地(di)(di)方(fang)。