Drain and Sewer pipe is sized differently then the SCH40 PVC pipe. It is also lighter weight. Drain and Sewer pipe is not designed to be used for pressure applications. See sizing charts below.
Schedule 40 PVC Pipe
| Nominal Pipe size |
Outside Diameter |
Average Inside Diameter |
Minimum Wall |
Max Working Pressure PSI |
| 1/4" |
0.540" |
0.344" |
0.088" |
780 |
| 3/8" |
0.675" |
0.473" |
0.091" |
620 |
| 1/2" |
0.840" |
0.602" |
0.109" |
600 |
| 3/4" |
1.050" |
0.804" |
0.113" |
480 |
| 1" |
1.315’ |
1.029" |
0.133" |
450 |
| 1-1/4" |
1.660" |
1.360" |
0.140" |
370 |
| 1-1/2" |
1.900" |
1.590" |
0.145" |
330 |
| 2" |
2.375" |
2.047" |
0.154" |
280 |
| 2-1/2" |
2.875" |
2.445" |
0.203" |
300 |
| 3" |
3.500" |
3.042" |
0.216" |
260 |
| 4" |
4.500" |
3.998" |
0.237" |
220 |
| 6" |
6.625" |
6.031" |
0.280" |
180 |
Drain & Sewer Pipe
| Size |
Outside Diameter |
Wall thickness |
Average Inside Diameter |
| 3" |
3.25" |
0.070" |
3.11" |
| 4" |
4.215" |
0.075" |
4.065" |
| 6" |
6.275" |
0.100" |
6.075" |
Title: What is the difference between Schedule 40 PVC and Drain and Sewer PVC pipe?
Description: Dimensions of the SCH 40 PVC pipe and the Drain and Sewer PVC pipe.
Published: 8/6/2008
Last Edited: 1/3/2023
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