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¹Ü¾¶/Á÷ËÙ/Á÷Á¿¶ÔÕÕ±í ¹Ü¾¶(DN) 20 25 32 40 50 65 80 100 125 150 200 250 300 350 400 450 500 600 Á÷Á¿ m0.4m/s 0.5 0.7 1.2 1.8 2.8 4.8 7.2 11.3 17.7 25.4 45.2 70.7 101.8 138.5 181.0 229.0 282.7 407.1 3/h 0.6m/s 0.7 1.1 1.7 2.7 4.2 7.2 10.9 17.0 26.5 38.2 67.9 106.0 152.7 207.8 271.4 343.5 424.1 610.7 0.8m/s 0.9 1.4 2.3 3.6 5.7 9.6 14.5 22.6 35.3 50.9 90.5 141.4 203.6 277.1 361.9 458.0 565.5 814.3 1.0m/s 1.1 1.8 2.9 4.5 7.1 11.9 18.1 28.3 44.2 63.6 113.1 176.7 254.5 346.4 452.4 572.6 706.9 1017.9 1.2m/s 1.4 2.1 3.5 5.4 8.5 14.3 21.7 33.9 53.0 76.3 135.7 212.1 305.4 415.6 542.9 687.1 848.2 1221.4 1.4m/s 1.6 2.5 4.1 6.3 9.9 16.7 25.3 39.6 61.9 89.1 158.3 247.4 356.3 484.9 633.3 801.6 989.6 1425.0 1.6m/s 1.8 2.8 4.6 7.2 11.3 19.1 29.0 45.2 70.7 101.8 181.0 282.7 407.1 554.2 723.8 916.1 1131.0 1628.6 1.8m/s 2.0 3.2 5.2 8.1 12.7 21.5 32.6 50.9 79.5 114.5 203.6 318.1 458.0 623.4 814.3 1030.6 1272.3 1832.2 2.0m/s 2.3 3.5 5.8 9.0 14.1 23.9 36.2 56.5 88.4 127.2 226.2 353.4 508.9 692.7 904.8 1145.1 1413.7 2035.7 2.2m/s 2.5 3.9 6.4 10.0 15.6 26.3 39.8 62.2 97.2 140.0 248.8 388.8 559.8 762.0 995.3 1259.6 1555.1 2239.3 2.4m/s 2.7 4.2 6.9 10.9 17.0 28.7 43.4 67.9 106.0 152.7 271.4 424.1 610.7 831.3 1085.7 1374.1 1696.5 2442.9 2.6m/s 2.9 4.6 7.5 11.8 18.4 31.1 47.0 73.5 114.9 165.4 294.1 459.5 661.6 900.5 1176.2 1488.6 1837.8 2646.5 2.8m/s 3.2 4.9 8.1 12.7 19.8 33.4 50.7 79.2 123.7 178.1 316.7 494.8 712.5 969.8 1266.7 1603.2 1979.2 2850.0 3.0m/s 3.4 5.3 8.7 13.6 21.2 35.8 54.3 84.8 132.5 190.9 339.3 530.1 763.4 1039.1 1357.2 1717.7 2120.6 3053.6 ¹Ü¾¶Á÷ËÙÍƼöÖµm/s: (DN) 20 25 0.6-0.7 0.5-0.6 32 0.7-0.9 0.6-0.8 40 0.8-1 0.7-0.9 50 0.9-1.2 0.8-1.0 65 1.1-1.4 0.9-1.2 80 1.2-1.6 1.1-1.4 100 1.3-1.8 1.2-1.6 125 1.5-2.0 1.4-1.8 150 200 250 1.8-2.6 1.7-2.4 300 1.9-2.9 1.7-2.4 350 1.6-2.5 1.6-2.1 400 1.8-2.6 1.8-2.3 ±Õʽ 0.5-0.6 ¿ªÊ½ 0.4-0.5 1.6-2.2 1.8-2.5 1.5-2.0 1.6-2.3