水管管径-流速-流量对照表

管径/流速/流量对照表
管径(DN)	流量 m3/h
	0.4m/s	0.6m/s	0.8m/s	1.0m/s	1.2m/s	1.4m/s	1.6m/s	1.8m/s	2.0m/s	2.2m/s	2.4m/s	2.6m/s	2.8m/s	3.0m/s
20	0.5	0.7	0.9	1.1	1.4	1.6	1.8	2.0	2.3	2.5	2.7	2.9	3.2	3.4
25	0.7	1.1	1.4	1.8	2.1	2.5	2.8	3.2	3.5	3.9	4.2	4.6	4.9	5.3
32	1.2	1.7	2.3	2.9	3.5	4.1	4.6	5.2	5.8	6.4	6.9	7.5	8.1	8.7
40	1.8	2.7	3.6	4.5	5.4	6.3	7.2	8.1	9.0	10.0	10.9	11.8	12.7	13.6
50	2.8	4.2	5.7	7.1	8.5	9.9	11.3	12.7	14.1	15.6	17.0	18.4	19.8	21.2
65	4.8	7.2	9.6	11.9	14.3	16.7	19.1	21.5	23.9	26.3	28.7	31.1	33.4	35.8
80	7.2	10.9	14.5	18.1	21.7	25.3	29.0	32.6	36.2	39.8	43.4	47.0	50.7	54.3
100	11.3	17.0	22.6	28.3	33.9	39.6	45.2	50.9	56.5	62.2	67.9	73.5	79.2	84.8
125	17.7	26.5	35.3	44.2	53.0	61.9	70.7	79.5	88.4	97.2	106.0	114.9	123.7	132.5
150	25.4	38.2	50.9	63.6	76.3	89.1	101.8	114.5	127.2	140.0	152.7	165.4	178.1	190.9
200	45.2	67.9	90.5	113.1	135.7	158.3	181.0	203.6	226.2	248.8	271.4	294.1	316.7	339.3
250	70.7	106.0	141.4	176.7	212.1	247.4	282.7	318.1	353.4	388.8	424.1	459.5	494.8	530.1
300	101.8	152.7	203.6	254.5	305.4	356.3	407.1	458.0	508.9	559.8	610.7	661.6	712.5	763.4
350	138.5	207.8	277.1	346.4	415.6	484.9	554.2	623.4	692.7	762.0	831.3	900.5	969.8	1039.1
400	181.0	271.4	361.9	452.4	542.9	633.3	723.8	814.3	904.8	995.3	1085.7	1176.2	1266.7	1357.2
450	229.0	343.5	458.0	572.6	687.1	801.6	916.1	1030.6	1145.1	1259.6	1374.1	1488.6	1603.2	1717.7
500	282.7	424.1	565.5	706.9	848.2	989.6	1131.0	1272.3	1413.7	1555.1	1696.5	1837.8	1979.2	2120.6
600	407.1	610.7	814.3	1017.9	1221.4	1425.0	1628.6	1832.2	2035.7	2239.3	2442.9	2646.5	2850.0	3053.6
管径(DN)	流速推荐值m/s:
	20	25	32	40	50	65	80	100	125	150	200	250	300	350	400
闭式系统	0.5-0.6	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	1.5-2.0	1.6-2.2	1.8-2.5	1.8-2.6	1.9-2.9	1.6-2.5	1.8-2.6
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	1.2-1.6	1.4-1.8	1.5-2.0	1.6-2.3	1.7-2.4	1.7-2.4	1.6-2.1	1.8-2.3