管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)件(jian)(jian)是(shi)將管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)子(zi)連(lian)接(jie)(jie)成管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)路的(de)零(ling)件(jian)(jian)。根(gen)據連(lian)接(jie)(jie)方法可分為承插式管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)件(jian)(jian)、螺紋管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)件(jian)(jian)、法蘭(lan)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)件(jian)(jian)和焊接(jie)(jie)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)件(jian)(jian)四(si)類(lei)。多(duo)用與(yu)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)子(zi)相(xiang)同的(de)材料制成。有彎頭(tou)（肘管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)）、法蘭(lan)、三(san)(san)通(tong)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)、四(si)通(tong)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)（十字頭(tou)）和異(yi)徑管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)（大(da)小頭(tou)）等。彎頭(tou)用于管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)道(dao)轉彎的(de)地(di)方；法蘭(lan)用于使(shi)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)子(zi)與(yu)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)子(zi)相(xiang)互連(lian)接(jie)(jie)的(de)零(ling)件(jian)(jian)，連(lian)接(jie)(jie)于管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)端(duan)，三(san)(san)通(tong)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)用于三(san)(san)根(gen)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)子(zi)匯集(ji)(ji)的(de)地(di)方；四(si)通(tong)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)用于四(si)根(gen)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)子(zi)匯集(ji)(ji)的(de)地(di)方；異(yi)徑管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)用于不同管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)徑的(de)兩根(gen)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)子(zi)相(xiang)連(lian)接(jie)(jie)的(de)地(di)方。