精品文档---下载后可任意编辑各种管材公称直径与外径对比表序号公称直径 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115 202020 22028 252525 32532 323232 43238 404040 5404848 505050 6506057 50636363505076576 757575 7588089 7590909075 9100114108 11011011011010011010125140133 125 11150165159 160 15016012200 219219200 20020013250 273273 14300 325325 15350 377377 16400 426426 17450 480480 精品文档---下载后可任意编辑18500 530530 19600 630630 室外埋地给排水管材管径标注、与公称直径对比关系表 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)PCCPLPCCPEDNDxδDNDNDNDNDNDNDNDDD120252022532322533240403244040505040550506363506656575756578089x4809090808100108x41001101101001109125133x41251401401251401015015016016015016015011200219x6200200200200200200200精品文档---下载后可任意编辑12250273x825025025025025025025013300325x830030031531530031530030014350377x935035535035515400426x9400400400400400400400400400室外埋地给排水管材管径标注、与公称直径对比关系表 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)PCCPLPCCPEDNDxδDNDNDNDNDNDNDNDDD16450480x945045045045045017500530x950050050050050050050050050018600630x960060063063060063060060060019700720x970070071070071070070070020800820x9800800800800800800800800精品文档---下载后可任意编辑21900920x99009009009009009009009002210001020x910001000100010001000100010001000231100110011001100110011002412001220x1012001200120012001200120012002514001420x1114001400140014001350140014002615001500150015002716001620x121600160016001600165016002818001820x141800180018001800180018002920002024x1420002000200020002000200030＞ .20002200~26002200~25002200~30002200~24002200~4000
