管道DN与DE对照表

1、管管道道DNDN与与DEDE对对照照表表序号英寸公称直径DN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11/21521.3202020.002023/42026.828252525.0025312533.532323232.003241.23242.338404040.004051.5404848505050.005062506057636363.0063505072.56575.576757575.007575838088.589909090.00907594100114108110110110.001101001101051251401331401251

2、16150165159160150160128200219219200200200131025027327325014123003253253151516400426426400174504804801850053053050019600630630630根据流速确定管径循环给水总管流量110.25设计最小流速1.5 设计最大流速最小管径139.63最大管径循环吸水总管流量110.25设计最小流速1 设计最大流速最小管径180.26最大管径溢流回水总管流量65.00设计最小流速0.7 设计最大流速最小管径151.62最大管径确定管径流量37.50流速0.8管径128.76校核管径（根据管径大小

3、校核流速）管径58.20流量2.18流速0.23风管长1.43风管宽0.8风管高0.4周长增加量0.2风管面积3.7181.547.008.454.905.283.723.416.2117.572.00605.532.94.301110.4066.60.502.96.2010.90.5419.12.2110.91.4013.921.234.631.4037.71.801.921.541.170.895.281.5429.84.353.78.0027.1862.70345.858.0014.501.823.350.825.630.681.400.801.220.802.701.100.671.1

4、03.24186.19管径(公称外径) 壁厚（0.63Mpa）壁厚（1.0Mpa）402.0+0.4502.4+0.5632.0+0.43.0+0.5752.3+0.53.6+0.6902.7+0.54.2+0.71102.7+0.54.2+0.71403.5+0.65.4+0.91604.0+0.66.2+1.02004.9+0.87.7+1.22506.2+1.09.6+1.53157.7+1.212.1+1.92管径(公称外径)壁厚（0.63Mpa）壁厚（1.0Mpa）161.23402.0+0.4502.4+0.51.2632.0+0.43.0+0.5197.47752.3+0.53.6+0.6902.7+0.54.2+0.711102.7+0.54.2+0.7181.221403.5+0.65.4+0.9160