各种管材公称直径与外径对照

1、各种管材公称直径与外径对照表序号公称直径DN外径De焊接钢管无缝钢管螺旋管UPVC管PP-R管PB管铝塑管铸铁排水管高密度聚乙烯管11521.320202022026.82825252532533.53232323243242.3384040405404848505050650605750636363505076575.5767575757588088.58975909090759100114108110110110110100110101251401331251115016515916015016012200219219200200200132502732731430032532515350

2、37737716400426426174504804801850053053019600630630室外埋地给排水管材管径标注、与公称直径对照关系表 第 1 页 共 2 页序号公称直径焊接钢管球墨铸铁管玻璃钢夹砂管(RPM管)埋地PVC-U给水管埋地聚乙烯给水管用于给水排水钢塑复合管埋地排水PVC-U双壁波纹管埋地聚乙烯排水管钢筋混凝土排水管预应力钢筒混凝土管(PCCP)PCCPLPCCPEDNDxDNDNDNDNDNDNDNDDD12025202253232253324040324404050504055057x3.5506363506656575756578089x480909080810

3、0108x41001101101001109125133x412514014012514010150159x4.515016016015016015011200219x620020020020020020020012250273x825025025025025025025013300325x830030031531530031530030014350377x935035535035515400426x9400400400400400400400400400室外埋地给排水管材管径标注、与公称直径对照关系表 第 2 页 共 2 页序号公称直径焊接钢管球墨铸铁管玻璃钢夹砂管(RPM管)埋地PVC-U

4、给水管埋地聚乙烯给水管用于给水排水钢塑复合管埋地排水PVC-U双壁波纹管埋地聚乙烯排水管钢筋混凝土排水管预应力钢筒混凝土管(PCCP)PCCPLPCCPEDNDxDNDNDNDNDNDNDNDDD16450480x945045045045045017500530x950050050050050050050050050018600630x960060063063060063060060060019700720x970070071070071070070070020800820x980080080080080080080080021900920x99009009009009009009009002210001020x910001000100010001000100010001000231100110011001100110011002412001220x1012001200120012001200120012002514001420x1114001400140014001350140014002615001500150015002716001620x121600160016001600165016002818001820x1418001800180018001800180029200020