Tenn. Comp. R. & Regs. 1200, 1200-01, ch. 1200-01-06, app III

Current through December 10, 2024

Appendix III

Friction Loss (ft), Through 100 ft of Schedule 40 PVC Pipe

Pipe Diameter (in)
Flow (gpm)	1	1 1/4	1 1/2	2	3	4	6
1	0.09
2	0.32	0.09
3	0.68	0.18	0.08
4	1.17	0.31	0.14
5	1.76	0.46	0.22	0.06
6	2.47	0.65	0.31	0.09
7	3.28	0.86	0.41	0.12
8	4.20	1.10	0.52	0.15
9	5.22	1.37	0.65	0.19
10	6.35	1.67	0.79	0.23
11	7.57	1.99	0.94	0.28
12		2.34	1.10	0.33
13		2.71	1.28	0.38
14		3.11	1.47	0.43	0.06
15		3.54	1.67	0.49	0.07
16		3.98	1.88	0.56	0.08
17		4.46	2.10	0.62	0.09
18		4.95	2.34	0.69	0.10
19		5.47	2.58	0.77	0.11
20		6.02	2.84	0.84	0.12
25			4.29	1.27	0.19
30			6.02	1.78	0.25	0.07
35				2.37	0.35	0.09
40				3.03	0.44	0.12
45				3.77	0.55	0.15
50				4.58	0.67	0.18
60				6.42	0.94	0.25
70					1.25	0.33
80					1.60	0.43	0.06
90					1.99	0.53	0.07
100					2.41	0.64	0.09
125					3.65	0.97	0.13
150					6.11	1.36	0.19
175					6.80	1.81	0.25
200						2.32	0.32
225						2.88	0.39
250						3.50	0.48
275						4.18	0.57
300						4.91	0.67
325						5.69	0.77
350						6.53	0.89
375						7.41	1.01
400							1.14
425							1.27
450							1.41
475							1.56
500							1.72
550							2.05
600							2.40
650							2.79
700							3.20
750							3.63
800							4.09
850							4.58
900							5.09
950							5.63

NOTE: 160 psi pipe is assumed to be SDR 26.

Computed by the Hazen Williams Formula, assuming C = 140:

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Tenn. Comp. R. & Regs. 1200, 1200-01, ch. 1200-01-06, app III

Original rule filed August 26, 2009; effective November 24, 2009.

Authority: T.C.A. § 68-221-403.