1、管径/流速/流量对照表管径(DN) 流量 m3/h0.4m/s 0.6m/s 0.8m/s 1.0m/s 1.2m/s 1.4m/s 1.6m/s 1.8m/s20 0.5 0.7 0.9 1.1 1.4 1.6 1.8 225 0.7 1.1 1.4 1.8 2.1 2.5 2.8 3.232 1.2 1.7 2.3 2.9 3.5 4.1 4.6 5.240 1.8 2.7 3.6 4.5 5.4 6.3 7.2 8.150 2.8 4.2 5.7 7.1 8.5 9.9 11.3 12.765 4.8 7.2 9.6 11.9 14.3 16.7 19.1 21.580 7.2 10.9
2、 14.5 18.1 21.7 25.3 29 32.6100 11.3 17 22.6 28.3 33.9 39.6 45.2 50.9125 17.7 26.5 35.3 44.2 53 61.9 70.7 79.5150 25.4 38.2 50.9 63.6 76.3 89.1 101.8 114.5200 45.2 67.9 90.5 113.1 135.7 158.3 181 203.6250 70.7 106 141.4 176.7 212.1 247.4 282.7 318.1300 101.8 152.7 203.6 254.5 305.4 356.3 407.1 45835
3、0 138.5 207.8 277.1 346.4 415.6 484.9 554.2 623.4400 181 271.4 361.9 452.4 542.9 633.3 723.8 814.3450 229 343.5 458 572.6 687.1 801.6 916.1 1030.6500 282.7 424.1 565.5 706.9 848.2 989.6 1131 1272.3600 407.1 610.7 814.3 1017.9 1221.4 1425 1628.6 1832.2管径(DN) 流速推荐值m/s:20 25 32 40 50 65 80 100闭式系统 0.5-
4、0.6 0.6-0.7 0.7-0.9 0.8-1 0.9-1.2 1.1-1.4 1.2-1.6 1.3-1.8开式系统 0.4-0.5 0.5-0.6 0.6-0.8 0.7-0.9 0.8-1.0 0.9-1.2 1.1-1.4 1.2-1.62.0m/s 2.2m/s 2.4m/s 2.6m/s 2.8m/s 3.0m/s2.3 2.5 2.7 2.9 3.2 3.43.5 3.9 4.2 4.6 4.9 5.35.8 6.4 6.9 7.5 8.1 8.79 10 10.9 11.8 12.7 13.614.1 15.6 17 18.4 19.8 21.223.9 26.3 28.7
5、 31.1 33.4 35.836.2 39.8 43.4 47 50.7 54.356.5 62.2 67.9 73.5 79.2 84.888.4 97.2 106 114.9 123.7 132.5127.2 140 152.7 165.4 178.1 190.9226.2 248.8 271.4 294.1 316.7 339.3353.4 388.8 424.1 459.5 494.8 530.1508.9 559.8 610.7 661.6 712.5 763.4692.7 762 831.3 900.5 969.8 1039.1904.8 995.3 1085.7 1176.2 1266.7 1357.21145.1 1259.6 1374.1 1488.6 1603.2 1717.71413.7 1555.1 1696.5 1837.8 1979.2 2120.62035.7 2239.3 2442.9 2646.5 2850 3053.6125 150 200 250 300 350 4001.5-2.0 1.6-2.2 1.8-2.5 1.8-2.6 1.9-2.9 1.6-2.5 1.8-2.61.4-1.8 1.5-2.0 1.6-2.3 1.7-2.4 1.7-2.4 1.6-2.1 1.8-2.3
