化工鋼制(zhi)承插焊(han)管件(jian)是以(yi)美國和日本管件(jian)相(xiang)關標準為依據(ju)，并結合我國化工行(xing)業實際情況制(zhi)定(ding)的一種專用(yong)管件(jian)標準，常用(yong)于小型管道。

1. 種類

  承(cheng)(cheng)(cheng)插(cha)(cha)焊(han)(han)(han)(han)管(guan)(guan)件種類包括承(cheng)(cheng)(cheng)插(cha)(cha)焊(han)(han)(han)(han)90°彎頭(tou)(tou)、承(cheng)(cheng)(cheng)插(cha)(cha)焊(han)(han)(han)(han)45°彎頭(tou)(tou)、承(cheng)(cheng)(cheng)插(cha)(cha)焊(han)(han)(han)(han)三通、承(cheng)(cheng)(cheng)插(cha)(cha)焊(han)(han)(han)(han)異(yi)徑三通、承(cheng)(cheng)(cheng)插(cha)(cha)焊(han)(han)(han)(han)管(guan)(guan)接(jie)(jie)頭(tou)(tou)、承(cheng)(cheng)(cheng)插(cha)(cha)焊(han)(han)(han)(han)異(yi)徑管(guan)(guan)接(jie)(jie)頭(tou)(tou)、承(cheng)(cheng)(cheng)插(cha)(cha)焊(han)(han)(han)(han)半管(guan)(guan)接(jie)(jie)頭(tou)(tou)、承(cheng)(cheng)(cheng)插(cha)(cha)焊(han)(han)(han)(han)管(guan)(guan)帽(mao)及承(cheng)(cheng)(cheng)插(cha)(cha)焊(han)(han)(han)(han)活接(jie)(jie)頭(tou)(tou)等9種。

2. 規格

   管(guan)(guan)件規(gui)格以公(gong)(gong)稱直(zhi)徑(jing)表(biao)示。管(guan)(guan)件的公(gong)(gong)稱直(zhi)徑(jing)為(wei)1/2、3/4、1、11/4、11/2in，與它連(lian)接的管(guan)(guan)子(zi)(zi)為(wei)英制(zhi)管(guan)(guan)子(zi)(zi)。但(dan)是(shi)，管(guan)(guan)件的承口孔和流通孔直(zhi)徑(jing)按公(gong)(gong)制(zhi)管(guan)(guan)尺(chi)寸加(jia)工(gong)后，可用于(yu)DN15、DN20、DN25、DN32及·DN40的公(gong)(gong)制(zhi)管(guan)(guan)子(zi)(zi)。

3. 管件書寫(xie)名稱

   管件(jian)書寫名稱(cheng)采用(yong)英語(yu)縮寫詞組合。管件(jian)書寫名稱(cheng)見表17-1。