SIZE | SDR | EXTERNAL DIAMETER | MINIMUM WALL THICKNESS |
(Inches) | (Inches) | (Inches) | |
2 | - | 2.375 | 0.154 |
21/2 | - | 2.875 | 0.203 |
3 | - | 3.500 | 0.216 |
31/2 | - | 4.000 | 0.226 |
4 | - | 4.500 | 0.237 |
41/2 | - | 4.950 | 0.248 |
5 | 21 | 5.563 | 0.265 |
6 | 21 | 6.625 | 0.316 |
8 | 26 | 8.625 | 0.332 |
10 | 26 | 10.750 | 0.413 |
12 | 26 | 12.750 | 0.490 |
14 | 26 | 14.000 | 0.539 |
16 | 26 | 16.000 | 0.616 |
Pipe sizes 2 inches, 21/2 inches, 3 inches, 31/2 inches, 4 inches and 41/2 inches shall be Schedule 40 pipe as a minimum.
Ill. Admin. Code tit. 77, pt. 920, tbl. B