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(guan)件(jian)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4.6.1。

 ②. 按連接形式分類：

     根據(ju)不銹鋼管(guan)(guan)(guan)(guan)(guan)(guan)件(jian)(jian)(jian)(jian)(jian)端(duan)部(bu)連(lian)(lian)接(jie)(jie)形式可(ke)(ke)將管(guan)(guan)(guan)(guan)(guan)(guan)件(jian)(jian)(jian)(jian)(jian)分為(wei)對(dui)焊(han)連(lian)(lian)接(jie)(jie)管(guan)(guan)(guan)(guan)(guan)(guan)件(jian)(jian)(jian)(jian)(jian)（簡稱(cheng)對(dui)焊(han)管(guan)(guan)(guan)(guan)(guan)(guan)件(jian)(jian)(jian)(jian)(jian)）、承(cheng)插焊(han)連(lian)(lian)接(jie)(jie)管(guan)(guan)(guan)(guan)(guan)(guan)件(jian)(jian)(jian)(jian)(jian)（簡稱(cheng)承(cheng)插焊(han)管(guan)(guan)(guan)(guan)(guan)(guan)件(jian)(jian)(jian)(jian)(jian)）、螺紋連(lian)(lian)接(jie)(jie)管(guan)(guan)(guan)(guan)(guan)(guan)件(jian)(jian)(jian)(jian)(jian)（簡稱(cheng)螺紋管(guan)(guan)(guan)(guan)(guan)(guan)件(jian)(jian)(jian)(jian)(jian)）、法蘭連(lian)(lian)接(jie)(jie)管(guan)(guan)(guan)(guan)(guan)(guan)件(jian)(jian)(jian)(jian)(jian)、卡套連(lian)(lian)接(jie)(jie)管(guan)(guan)(guan)(guan)(guan)(guan)件(jian)(jian)(jian)(jian)(jian)、卡箍(gu)連(lian)(lian)接(jie)(jie)管(guan)(guan)(guan)(guan)(guan)(guan)件(jian)(jian)(jian)(jian)(jian)、粘接(jie)(jie)連(lian)(lian)接(jie)(jie)管(guan)(guan)(guan)(guan)(guan)(guan)件(jian)(jian)(jian)(jian)(jian)、熱(re)熔連(lian)(lian)接(jie)(jie)管(guan)(guan)(guan)(guan)(guan)(guan)件(jian)(jian)(jian)(jian)(jian)以(yi)及其(qi)他管(guan)(guan)(guan)(guan)(guan)(guan)件(jian)(jian)(jian)(jian)(jian)。在石油化工裝置的(de)配管(guan)(guan)(guan)(guan)(guan)(guan)設計(ji)中，常用對(dui)焊(han)管(guan)(guan)(guan)(guan)(guan)(guan)件(jian)(jian)(jian)(jian)(jian)、支管(guan)(guan)(guan)(guan)(guan)(guan)臺、承(cheng)插焊(han)及螺紋連(lian)(lian)接(jie)(jie)管(guan)(guan)(guan)(guan)(guan)(guan)件(jian)(jian)(jian)(jian)(jian)的(de)形式。法蘭管(guan)(guan)(guan)(guan)(guan)(guan)件(jian)(jian)(jian)(jian)(jian)多用于特殊配管(guan)(guan)(guan)(guan)(guan)(guan)場合，使用范圍及數量相對(dui)比較少。可(ke)(ke)根據(ju)GB/T 17185《鋼制法蘭管(guan)(guan)(guan)(guan)(guan)(guan)件(jian)(jian)(jian)(jian)(jian)》的(de)規定選用。

③. 按材料分類(lei)：

    a. 碳素鋼管(guan)件(jian)(jian)；b. 合(he)金鋼管(guan)件(jian)(jian)；c. 不銹鋼管(guan)件(jian)(jian)；d. 塑料管(guan)件(jian)(jian)；e. 橡(xiang)膠管(guan)件(jian)(jian)；f. 鑄(zhu)鐵管(guan)件(jian)(jian)；g. 鍛鋼管(guan)件(jian)(jian)等。

④. 按(an)加工方式分(fen)：

    無(wu)縫、焊接(jie)、鍛制、鑄造。

不銹鋼管件的生產工藝

  管件(jian)的(de)分(fen)類和規(gui)格非常多，生產工(gong)(gong)藝(yi)(yi)可能不同，了解(jie)管件(jian)的(de)基本生產工(gong)(gong)藝(yi)(yi)，對管件(jian)選用(yong)和配管設計(ji)有一定的(de)用(yong)處。典型金屬管件(jian)的(de)生產工(gong)(gong)藝(yi)(yi)見圖4.6.2。