Velocity Flows Chart - Schedule 40 PVC Pipe Irrigation Direct

Table Velocity Flows same for all
Schedule 40 thermoplastic pipe
												VELOCITY FLOWS

											SCHEDULE 40 PVC PIPE

	Nominal Pipe Size
Velocity	1/2 in	3/4 in	1 in	1-1/4 in	1-1/2 in	2 in	2-1/2 in	3 in	4 in	6 in	8 in	10 in	12 in	Velocity
ft/s	Flow: gpm*													ft/s
1	0.9	1.6	2.6	4.5	6.2	10.3	14.6	22.7	39.1	89.0	154.4	243.6	346.0	1
2	1.8	3.2	5.2	9.1	12.4	20.5	29.3	45.3	78.3	178.1	308.8	487.2	692.0	2
3	2.7	4.7	7.8	13.6	18.6	30.8	43.9	68.0	117.4	267.1	463.2	730.9	1038.1	3
4	3.5	6.3	10.4	18.1	24.8	41.0	58.5	90.6	156.5	356.2	617.6	974.5	1384.1	4
5	4.4	7.9	13.0	22.6	30.9	51.3	73.2	113.3	195.6	445.2	772.0	1218.1	1730.1	5
6	5.3	9.5	15.6	27.2	37.1	61.5	87.8	135.9	234.8	534.2	926.4	1461.7	2076.1	6
7	6.2	11.1	18.1	31.7	43.3	71.8	102.4	158.6	273.9	623.3	1080.9	1705.4	2422.1	7
8	7.1	12.7	20.7	36.2	49.5	82.1	117.1	181.2	313.0	712.3	1235.3	1949.0	2768.1	8
9	8.0	14.2	23.3	40.8	55.7	92.3	131.7	203.9	352.2	801.4	1389.7	2192.6	3114.2	9
10	8.9	15.8	25.9	45.3	61.9	102.6	146.3	226.5	391.3	890.4	1544.1	2436.2	3460.2	10
11	9.8	17.4	28.5	49.8	68.1	112.8	161.0	249.2	430.4	979.4	1698.5	2679.9	3806.2	11
12	10.6	19.0	31.1	54.3	74.3	123.1	175.6	271.8	469.5	1068.5	1852.9	2923.5	4152.2	12
13	11.5	20.6	33.7	58.9	80.5	133.3	190.2	294.5	508.7	1157.5	2007.3	3167.1	4498.2	13
14	12.4	22.2	36.3	63.4	86.6	143.6	204.9	317.1	547.8	1246.6	2161.7	3410.7	4844.3	14
15	13.3	23.7	38.9	67.9	92.8	153.9	219.5	339.8	586.9	1335.6	2316.1	3654.4	5190.3	15
* Flows calculated with factors in Table 320 may vary slightly due to rounding off of factors.