Iron Pipe Dimensions | HI Data Tool

Pump Piping – Practices to Improve Reliability and Operation – Recorded Webinar Series

Learn the requirements for pump piping design per the requirements in ANSI/HI 9.6.6. Inlet and outlet piping requirements and case studies. Wet well connections, modeling, parallel pump piping, pump station retrofit piping and more.

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Note: Internal diameter and area are calculated based on nominal values

Pipe Dimensions: Iron (Ductile) pipe per AWWA C151/A21.51-17

Nominal Size	Outside Diameter, inches	Wall Thickness, inches	Pressure Class	Internal Diameter, inches	Internal Diameter, feet	Internal Area, square feet	e/D, Relative Roughness	e, Absolute Roughness, feet
3	3.96	0.25	350	3.46	0.2883	0.0652949	0.002948	0.00085
4	4.8	0.25	350	4.3	0.3583	0.1008473	0.002372	0.00085
6	6.9	0.25	350	6.4	0.5333	0.2234021	0.001594	0.00085
8	9.05	0.25	350	8.55	0.7125	0.3987123	0.001193	0.00085
10	11.1	0.26	350	10.58	0.8817	0.6105184	0.000964	0.00085
12	13.2	0.28	350	12.64	1.0533	0.871408	0.000807	0.00085
14	15.3	0.28	250	14.74	1.2283	1.1850109	0.000692	0.00085
14	15.3	0.3	300	14.7	1.225	1.1785881	0.000694	0.00085
14	15.3	0.31	350	14.68	1.2233	1.1753833	0.000695	0.00085
16	17.4	0.3	250	16.8	1.4	1.5393804	0.000607	0.00085
16	17.4	0.32	300	16.76	1.3967	1.5320587	0.000609	0.00085
16	17.4	0.34	350	16.72	1.3933	1.5247545	0.00061	0.00085
18	19.5	0.31	250	18.88	1.5733	1.9441572	0.00054	0.00085
18	19.5	0.34	300	18.82	1.5683	1.9318199	0.000542	0.00085
18	19.5	0.36	350	18.78	1.565	1.9236168	0.000543	0.00085
20	21.6	0.33	250	20.94	1.745	2.391557	0.000487	0.00085
20	21.6	0.36	300	20.88	1.74	2.3778715	0.000489	0.00085
20	21.6	0.38	350	20.84	1.7367	2.3687696	0.000489	0.00085
24	25.8	0.33	200	25.14	2.095	3.4471322	0.000406	0.00085
24	25.8	0.37	250	25.06	2.0883	3.4252283	0.000407	0.00085
24	25.8	0.4	300	25	2.0833	3.4088462	0.000408	0.00085
24	25.8	0.43	350	24.94	2.0783	3.3925034	0.000409	0.00085
30	32	0.34	150	31.32	2.61	5.3502108	0.000326	0.00085
30	32	0.38	200	31.24	2.6033	5.3229139	0.000327	0.00085
30	32	0.42	250	31.16	2.5967	5.2956867	0.000327	0.00085
30	32	0.45	300	31.1	2.5917	5.2753122	0.000328	0.00085
30	32	0.49	350	31.02	2.585	5.2482072	0.000329	0.00085
36	38.3	0.38	150	37.54	3.1283	7.6862751	0.000272	0.00085
36	38.3	0.42	200	37.46	3.1217	7.6535502	0.000272	0.00085
36	38.3	0.47	250	37.36	3.1133	7.6127422	0.000273	0.00085
36	38.3	0.51	300	37.28	3.1067	7.5801744	0.000274	0.00085
36	38.3	0.56	350	37.18	3.0983	7.5395628	0.000274	0.00085
42	44.5	0.41	150	43.68	3.64	10.4062115	0.000234	0.00085
42	44.5	0.47	200	43.56	3.63	10.3491131	0.000234	0.00085
42	44.5	0.52	250	43.46	3.6217	10.301651	0.000235	0.00085
42	44.5	0.57	300	43.36	3.6133	10.254298	0.000235	0.00085
42	44.5	0.63	350	43.24	3.6033	10.1976185	0.000236	0.00085
48	50.8	0.46	150	49.88	4.1567	13.5700135	0.000204	0.00085
48	50.8	0.52	200	49.76	4.1467	13.5047992	0.000205	0.00085
48	50.8	0.58	250	49.64	4.1367	13.4397421	0.000205	0.00085
48	50.8	0.64	300	49.52	4.1267	13.374842	0.000206	0.00085
48	50.8	0.7	350	49.4	4.1167	13.310099	0.000206	0.00085
54	57.56	0.51	150	56.54	4.7117	17.4356843	0.00018	0.00085
54	57.56	0.58	200	56.4	4.7	17.3494454	0.000181	0.00085
54	57.56	0.65	250	56.26	4.6883	17.2634203	0.000181	0.00085
54	57.56	0.72	300	56.12	4.6767	17.177609	0.000182	0.00085
54	57.56	0.79	350	55.98	4.665	17.0920115	0.000182	0.00085
60	61.61	0.54	150	60.53	5.0442	19.9833703	0.000169	0.00085
60	61.61	0.61	200	60.39	5.0325	19.8910381	0.000169	0.00085
60	61.61	0.68	250	60.25	5.0208	19.7989196	0.000169	0.00085
60	61.61	0.76	300	60.09	5.0075	19.6939031	0.00017	0.00085
60	61.61	0.83	350	59.95	4.9958	19.6022428	0.00017	0.00085
64	65.67	0.56	150	64.55	5.3792	22.7258367	0.000158	0.00085
64	65.67	0.64	200	64.39	5.3658	22.6133154	0.000158	0.00085
64	65.67	0.72	250	64.23	5.3525	22.5010732	0.000159	0.00085
64	65.67	0.8	300	64.07	5.3392	22.3891104	0.000159	0.00085
64	65.67	0.87	350	63.93	5.3275	22.2913719	0.00016	0.00085

Tbl. 4.C.1

Last updated on July 19th, 2024

Pipe Dimensions: Iron (Ductile) pipe per AWWA C151/A21.51-17

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