Water Flow through Schedule 40 Steel Pipes

 

 

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Discharge		Pressure Drop per 100 Feet and Velocity in Schedule 40 Pipe 60 Degrees (Fahrenheit) Water
Gallons Per Minute	Cubic Feet Per Minute	Velocity (Ft. per Second)	Pressure Drop (PSI)	Velocity (Ft. per Second)	Pressure Drop (PSI)	Velocity (Ft. per Second)	Pressure Drop (PSI)	Velocity (Ft. per Second)	Pressure Drop (PSI)	Velocity (Ft. per Second)	Pressure Drop (PSI)	Velocity (Ft. per Second)	Pressure Drop (PSI)	Velocity (Ft. per Second)	Pressure Drop (PSI)	Velocity (Ft. per Second)	Pressure Drop (PSI)
		1/8"		1/4"
0.2	0.02676	1.13	1.86	0.616	0.359	3/8"		1/2"
0.3	0.04008	1.69	4.22	0.924	0.903	0.504	0.159	0.317	0.061
0.4	0.05346	2.26	6.98	1.23	1.61	0.672	0.345	0.422	0.086	3/4"
0.5	0.0666	2.82	10.5	1.54	2.39	0.840	0.539	0.528	0.167	0.301	0.033
0.6	0.0804	3.39	14.7	1.85	3.29	1.01	0.751	0.633	0.240	0.361	0.041
0.8	0.1068	4.52	25.0	2.46	5.44	1.34	1.25	0.844	0.408	0.481	0.102	1"
1	0.1338	5.65	37.2	3.08	8.28	1.68	1.85	1.06	0.600	0.602	0.155	0.371	0.048	1-1/4"
2	0.2676	11.29	134.4	6.16	30.1	3.36	6.58	2.11	2.10	1.20	0.526	0.743	0.164	0.429	0.044	1-1/2"
3	0.4008			9.25	64.1	5.04	13.9	3.17	4.33	1.81	1.09	1.114	0.336	0.644	0.090	0.473	0.043
4	0.5346			12.33	111.2	6.72	23.9	4.22	7.42	2.41	1.83	1.49	0.565	0.858	0.150	0.630	0.071
5	0.6684	2"				8.40	36.7	5.28	11.2	3.01	2.75	1.86	0.835	1.073	0.223	0.788	0.104
6	0.8022	0.574	0.044			10.08	51.9	6.33	15.8	3.61	3.84	2.23	1.17	1.29	0.309	0.943	0.145
8	1.0692	0.765	0.073	2-1/2"		13.44	91.1	8.45	27.7	4.81	6.60	2.97	1.99	1.72	0.518	1.26	0.241
10	1.3368	0.956	0.108	0.670	0.046			10.56	42.4	6.02	9.99	3.71	2.99	2.15	0.774	1.58	0.361
15	2.0052	1.43	0.224	1.01	0.094	3"				9.03	21.6	5.57	6.36	3.22	1.63	2.37	0.755
20	2.6736	1.91	3.375	1.34	0.158	0.868	0.056	3-1/2"		12.03	37.8	7.43	10.9	4.29	2.78	3.16	1.28
25	3.342	2.39	0.561	1.68	0.234	1.09	0.083	0.812	0.041			9.28	16.7	5.37	4.22	3.94	1.93
30	4.0104	2.87	0.786	2.01	0.327	1.30	0.114	0.974	0.056	4"		11.14	23.8	6.44	5.92	4.73	2.72
35	4.6788	3.35	1.05	2.35	0.436	1.52	0.151	1.14	0.071	0.882	0.041	12.99	32.2	7.51	7.90	5.52	3.64
40	5.3472	3.83	1.35	2.68	0.556	1.74	0.192	1.30	0.095	1.01	0.052	14.85	41.5	8.59	10.24	6.30	4.65
45	6.018	4.30	1.67	3.02	0.668	1.95	0.239	1.46	0.117	1.13	0.064			9.67	12.80	7.09	5.85
50	6.684	4.78	2.03	3.35	0.839	2.17	0.288	1.62	0.142	1.26	0.076			10.74	15.66	7.88	7.15
60	8.022	5.74	2.87	4.02	1.18	2.60	0.46	1.95	0.204	1.51	0.107	5"		12.89	22.2	9.47	10.21
70	9.36	6.70	3.84	4.69	1.59	3.04	0.540	2.27	0.261	1.76	0.143	1.12	0.047			11.05	13.71
80	10.692	7.65	4.97	5.36	2.03	3.47	0.687	2.60	0.334	2.02	0.180	1.28	0.060			12.62	17.59
90	12.03	8.60	6.20	6.03	2.53	3.91	0.861	2.92	0.416	2.27	0.224	1.44	0.074	6"		14.20	22.0
100	13.368	9.56	7.59	6.70	3.09	4.34	1.05	3.25	0.509	2.52	0.272	1.60	0.090	1.11	0.036	15.778	26.9
125	16.71	11.97	11.76	8.38	4.71	5.43	1.61	4.06	0.769	3.15	0.415	2.01	0.135	1.39	0.055	19.72	41.4
150	20.052	14.36	16.7	10.05	6.69	6.51	2.24	4.87	1.08	3.78	0.580	2.41	0.190	1.67	0.077
175	23.394	16.75	22.3	11.73	8.97	7.60	3.00	5.68	1.44	4.41	0.774	2.81	0.253	1.94	0.102
200	26.736	19.14	28.8	13.42	11.68	8.68	3.87	6.49	1.85	5.04	0.985	3.21	0.323	2.22	0.130	8"
225	30.078			15.09	14.63	9.77	4.83	7.30	2.32	5.67	1.23	3.61	0.401	2.50	0.162	1.44	0.043
250	33.42					10.85	5.93	8.12	2.84	6.30	1.46	4.01	0.495	2.78	0.195	1.60	0.051
275	36.762					11.94	7.14	8.93	3.40	6.93	1.79	4.41	0.583	3.05	0.234	1.76	0.061
300	40.104					13.00	8.36	9.74	4.02	7.56	2.11	4.81	0.683	3.33	0.275	1.92	0.072
325	43.446					14.12	9.89	10.53	4.09	8.19	2.47	5.21	0.797	3.61	0.320	2.08	0.083
350	46.788							11.36	5.51	8.82	2.84	5.62	0.919	3.89	0.367	2.24	0.095
375	50.13							12.17	6.18	9.45	3.25	6.02	1.05	4.16	0.416	2.40	0.108
400	53.472							12.98	7.03	10.08	3.68	6.42	1.19	4.44	0.471	2.56	0.121
425	56.814							13.80	7.89	10.71	4.12	6.82	1.33	4.72	0.529	2.73	0.136
450	60.18	10"						14.61	8.80	11.34	4.60	7.22	1.48	5.00	0.590	2.89	0.151
475	63.54	1.93	0.054							11.97	5.12	7.62	1.64	5.27	0.653	3.04	0.166
500	66.84	2.03	0.059							12.60	5.65	8.02	1.81	5.55	0.720	3.21	0.182
550	73.5	2.24	0.071							13.85	6.79	8.82	2.17	6.11	0.861	3.53	0.219
600	80.22	2.44	0.083							15.12	8.04	9.63	2.55	6.66	1.02	3.85	0.258
650	86.88	2.64	0.097									10.43	2.98	7.22	1.18	4.17	0.301

Discharge		Pressure Drop per 100 Feet and Velocity in Schedule 40 Pipe 60 Degrees (Fahrenheit) Water
Gallons Per Minute	Cubic Feet Per Minute	Velocity (Ft. per Second)	Pressure Drop (PSI)	Velocity (Ft. per Second)	Pressure Drop (PSI)	Velocity (Ft. per Second)	Pressure Drop (PSI)	Velocity (Ft. per Second)	Pressure Drop (PSI)	Velocity (Ft. per Second)	Pressure Drop (PSI)	Velocity (Ft. per Second)	Pressure Drop (PSI)	Velocity (Ft. per Second)	Pressure Drop (PSI)	Velocity (Ft. per Second)	Pressure Drop (PSI)
		10"		12"								5"		6"		8"
700	93.6	2.85	0.112	2.01	0.047							11.23	3.43	7.78	1.35	4.49	0.343
750	100.26	3.05	0.127	2.15	0.054							12.03	3.92	8.33	1.55	4.81	0.392
800	106.92	3.25	0.143	2.29	0.061	14"						12.83	4.43	8.88	1.75	5.13	0.443
850	113.64	3.46	0.160	2.44	0.068	2.02	0.042					13.64	5.00	9.44	1.96	5.45	0.497
900	120.3	3.66	0.179	2.58	0.075	2.13	0.047					14.44	5.58	9.99	2.18	5.77	0.554
950	127.02	3.86	0.198	2.72	0.083	2.25	0.052					15.24	6.21	10.55	2.42	6.09	0.613
1,000	133.68	4.07	0.218	2.87	0.091	2.37	0.057					16.04	6.84	11.10	2.68	6.41	0.675
1,100	147.06	4.48	0.260	3.15	0.110	2.61	0.068	16"				17.65	8.23	12.22	3.22	7.05	0.807
1,200	160.44	4.88	0.306	3.44	0.128	2.85	0.080	2.18	0.042					13.33	3.81	7.70	0.948
1,300	173.76	5.29	0.355	3.73	0.150	3.08	0.093	2.36	0.048					14.43	4.45	8.33	1.11
1,400	187.14	5.70	0.409	4.01	0.171	3.32	0.107	2.54	0.055					15.55	5.13	8.98	1.28
1,500	200.52	6.10	0.466	4.30	0.195	3.56	0.122	2.72	0.063					16.66	5.85	9.62	1.46
1,600	213.9	6.51	0.527	4.59	0.219	3.79	0.138	2.90	0.071	18"				17.77	6.61	10.26	1.65
1,800	240.6	7.32	0.663	5.16	0.276	4.27	0.172	3.27	0.088	2.58	0.050			19.99	8.37	11.54	2.08
2,000	267.36	8.14	0.808	5.73	0.339	4.74	0.209	3.63	0.107	2.87	0.060			22.21	10.3	12.82	2.55
2,500	334.2	10.17	1.24	7.17	0.515	5.93	0.321	4.54	0.163	3.59	0.091	20"				16.03	3.94
3,000	401.04	12.20	1.76	8.60	0.731	7.11	0.451	5.45	0.232	4.30	0.129	3.46	0.075			19.24	5.59
3,500	467.88	14.24	2.38	10.03	0.982	8.30	0.607	6.35	0.312	5.02	0.173	4.04	0.101	24"		22.44	7.56
4,000	534.72	16.27	3.08	11.47	1.27	9.48	0.787	7.26	0.401	5.74	0.222	4.62	0.129	3.19	0.052	25.65	9.80
4,500	601.8	18.31	3.87	12.90	1.60	10.67	0.990	8.17	0.503	6.46	0.280	5.20	0.162	3.59	0.065	28.87	12.2
5,000	668.4	20.35	7.71	14.33	1.95	11.85	1.21	9.08	0.617	7.17	0.340	5.77	0.199	3.99	0.079
6,000	802.2	24.41	6.74	17.20	2.77	14.23	1.71	10.89	0.877	8.61	0.483	6.93	0.280	4.79	0.111
7,000	936	28.49	9.11	20.07	3.74	16.60	2.31	12.71	1.18	10.04	0.652	8.08	0.376	5.59	0.150
8,000	1069.2			22.93	4.84	18.96	2.99	14.52	1.51	11.47	0.839	9.23	0.488	6.38	0.192
9,000	1203			25.79	6.09	21.34	3.76	16.34	1.90	12.91	1.05	10.39	0.608	7.18	0.242
10,000	1336.8			28.66	7.46	23.71	4.61	18.15	2.34	14.34	1.28	11.54	0.739	7.98	0.294
12,000	1604.4			34.40	10.7	28.45	6.59	21.79	3.33	17.21	1.83	13.85	1.06	9.58	0.416
14,000	1871.4					33.19	8.89	25.42	4.49	20.08	2.45	16.16	1.43	11.17	0.562
16,000	2139							29.05	5.83	22.95	3.18	18.47	1.85	12.77	0.723
18,000	2406							32.68	7.31	25.82	4.03	20.77	2.32	14.36	0.907
20,000	2673.6							36.31	9.03	28.69	4.93	23.08	2.86	15.96	1.12

 

 

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