压力管道标准 规格
DN-公称直径 Ф－外径 大外径系列DN15-ф22mmDN20-ф27mmDN25-ф34mmDN32-ф42mmDN40-ф48mmDN50-ф60mmDN65-ф76(73)mmDN80-фmmDN100-ф114mmDN125-ф140mmDN150-ф168mmDN200-ф219mmDN250-ф273mmDN300-ф324mmDN350-ф360mmDN400-ф406mmDN450-ф457mmDN500-ф508mmDN600-ф610mm
小外径系列
DN15-ф18mmDN20-ф25mmDN25-ф32mmDN32-ф38mmDN40-ф45mmDN50-ф57mmDN65-ф73mmDN80-фmmDN100-ф108mmDN125-ф133mmDN150-ф159mmDN200-ф219mmDN250-ф273mmDN300-ф325mmDN350-ф377mmDN400-ф426mmDN450-ф480mmDN500-ф530mmDN600-ф630mm
