不銹鋼管件（pipe fitting）在管系中起著改變走向、改變標高或改變直徑、封閉管端以及由主管上引出支管的作用。在石油化工裝置中管道品種多，管系復雜，形狀各異，簡繁不等，所用的不(bu)銹鋼管件品種、材質、數量也就很多，選用時需要考慮的因素也復雜。管件的基本概念如圖4.6.1所示。不銹鋼管件的種類很多，這里根據用途、連接、材料、加工方式分類。

 ①. 按用途分類，見(jian)表(biao)4.6.1。

 ②. 按連接形式分(fen)類：

     根(gen)據不銹鋼管(guan)(guan)件(jian)(jian)(jian)端部連(lian)(lian)(lian)(lian)(lian)接(jie)(jie)形式(shi)可將管(guan)(guan)件(jian)(jian)(jian)分為對(dui)焊(han)連(lian)(lian)(lian)(lian)(lian)接(jie)(jie)管(guan)(guan)件(jian)(jian)(jian)（簡(jian)稱對(dui)焊(han)管(guan)(guan)件(jian)(jian)(jian)）、承(cheng)插(cha)焊(han)連(lian)(lian)(lian)(lian)(lian)接(jie)(jie)管(guan)(guan)件(jian)(jian)(jian)（簡(jian)稱承(cheng)插(cha)焊(han)管(guan)(guan)件(jian)(jian)(jian)）、螺(luo)紋(wen)(wen)連(lian)(lian)(lian)(lian)(lian)接(jie)(jie)管(guan)(guan)件(jian)(jian)(jian)（簡(jian)稱螺(luo)紋(wen)(wen)管(guan)(guan)件(jian)(jian)(jian)）、法(fa)蘭連(lian)(lian)(lian)(lian)(lian)接(jie)(jie)管(guan)(guan)件(jian)(jian)(jian)、卡(ka)套連(lian)(lian)(lian)(lian)(lian)接(jie)(jie)管(guan)(guan)件(jian)(jian)(jian)、卡(ka)箍連(lian)(lian)(lian)(lian)(lian)接(jie)(jie)管(guan)(guan)件(jian)(jian)(jian)、粘接(jie)(jie)連(lian)(lian)(lian)(lian)(lian)接(jie)(jie)管(guan)(guan)件(jian)(jian)(jian)、熱熔連(lian)(lian)(lian)(lian)(lian)接(jie)(jie)管(guan)(guan)件(jian)(jian)(jian)以及(ji)其他管(guan)(guan)件(jian)(jian)(jian)。在石油化(hua)工(gong)裝(zhuang)置(zhi)的配管(guan)(guan)設計(ji)中，常用(yong)對(dui)焊(han)管(guan)(guan)件(jian)(jian)(jian)、支(zhi)管(guan)(guan)臺、承(cheng)插(cha)焊(han)及(ji)螺(luo)紋(wen)(wen)連(lian)(lian)(lian)(lian)(lian)接(jie)(jie)管(guan)(guan)件(jian)(jian)(jian)的形式(shi)。法(fa)蘭管(guan)(guan)件(jian)(jian)(jian)多(duo)用(yong)于特殊(shu)配管(guan)(guan)場合，使(shi)用(yong)范圍(wei)及(ji)數量(liang)相對(dui)比較少。可根(gen)據GB/T 17185《鋼制(zhi)法(fa)蘭管(guan)(guan)件(jian)(jian)(jian)》的規定選(xuan)用(yong)。

③. 按材料分類：

    a. 碳(tan)素鋼(gang)管(guan)件；b. 合(he)金鋼(gang)管(guan)件；c. 不銹(xiu)鋼(gang)管(guan)件；d. 塑料(liao)管(guan)件；e. 橡(xiang)膠(jiao)管(guan)件；f. 鑄(zhu)鐵管(guan)件；g. 鍛(duan)鋼(gang)管(guan)件等。

④. 按(an)加工方式分：

    無縫、焊接、鍛制、鑄造。

不銹(xiu)鋼管(guan)件的生產工藝(yi)

  管(guan)(guan)件(jian)的(de)分類和(he)規格非常多，生(sheng)產工藝(yi)可能不(bu)同，了解管(guan)(guan)件(jian)的(de)基本(ben)生(sheng)產工藝(yi)，對管(guan)(guan)件(jian)選用(yong)和(he)配管(guan)(guan)設計有一定的(de)用(yong)處。典型金屬管(guan)(guan)件(jian)的(de)生(sheng)產工藝(yi)見圖4.6.2。