PVC Pipe Schedule 120

Nom. Pipe Size (in) O.D. Average I.D. Min. Wall Nom. Wt./Ft. Max. W.P. PSI**
1/2" .840 .480 0.170 0.236 1010
3/4" 1.050 .690 0.170 0.311 770
1" 1.315 .891 0.200 0.464 720
1-1/4" 1.660 1.204 0.215 0.649 600
1-1/2" 1.900 1.423 0.225 0.787 540
2" 2.375 1.845 0.250 1.111 470
2-1/2" 2.875 2.239 0.300 1.615 470
3" 3.500 2.758 0.350 2.306 440
4" 4.500 3.574 0.437 3.713 430
6" 6.625 5.434 0.562 7.132 370
8" 8.625 7.189 0.718 11.277 380

** The Pressure ratings shown are for water, non-shock, @ 73°F with plain end pipe. Threaded pipe requires a 50% reduction in the pressure ratings stated. Appropriate temperature de-rating factors must be applied to determine the maximum allowable pressure when working at elevated temperatures greater than 73°F.

Derating Factor

Operating Temp (°F) De-Rating Factor
73 1.00
80 0.88
90 0.75
100 0.62
110 0.51
120 0.40
130 0.31
140 0.22