化工鋼制承插焊管(guan)(guan)件(jian)(jian)(jian)是以美國和日本管(guan)(guan)件(jian)(jian)(jian)相關標(biao)準為依據，并結合(he)我國化工行業(ye)實(shi)際情況制定的一(yi)種專用管(guan)(guan)件(jian)(jian)(jian)標(biao)準，常(chang)用于(yu)小型管(guan)(guan)道。

1. 種類

  承(cheng)(cheng)插(cha)焊(han)(han)(han)管(guan)(guan)件(jian)種類(lei)包括承(cheng)(cheng)插(cha)焊(han)(han)(han)90°彎頭、承(cheng)(cheng)插(cha)焊(han)(han)(han)45°彎頭、承(cheng)(cheng)插(cha)焊(han)(han)(han)三通(tong)、承(cheng)(cheng)插(cha)焊(han)(han)(han)異徑三通(tong)、承(cheng)(cheng)插(cha)焊(han)(han)(han)管(guan)(guan)接頭、承(cheng)(cheng)插(cha)焊(han)(han)(han)異徑管(guan)(guan)接頭、承(cheng)(cheng)插(cha)焊(han)(han)(han)半管(guan)(guan)接頭、承(cheng)(cheng)插(cha)焊(han)(han)(han)管(guan)(guan)帽(mao)及承(cheng)(cheng)插(cha)焊(han)(han)(han)活接頭等9種。

2. 規格

   管(guan)件(jian)規格以公(gong)(gong)(gong)稱直徑(jing)表(biao)示。管(guan)件(jian)的公(gong)(gong)(gong)稱直徑(jing)為(wei)1/2、3/4、1、11/4、11/2in，與它連接的管(guan)子(zi)為(wei)英制(zhi)管(guan)子(zi)。但是，管(guan)件(jian)的承(cheng)口孔(kong)和流通(tong)孔(kong)直徑(jing)按公(gong)(gong)(gong)制(zhi)管(guan)尺寸加工后(hou)，可用于DN15、DN20、DN25、DN32及·DN40的公(gong)(gong)(gong)制(zhi)管(guan)子(zi)。

3. 管件(jian)書(shu)寫名稱

   管件(jian)書(shu)寫(xie)名稱(cheng)采用英語(yu)縮寫(xie)詞組合。管件(jian)書(shu)寫(xie)名稱(cheng)見(jian)表17-1。