| DN | INCH | SCH 120 |
| 8 | 1/4" | |
| 10 | 3/8" | |
| 15 | 1/2" | - |
| 20 | 3/4" | - |
| 25 | 1" | - |
| 32 | 1¼" | - |
| 40 | 1½" | - |
| 50 | 2" | - |
| - | 2½" | - |
| 65 | - | - |
| 80 | 3" | - |
| - | 3½" | - |
| 100 | 4" | 11.13 |
| 125 | - | - |
| - | 5" | 12.7 |
| 150 | 6" | 14.27 |
| 200 | 8" | 18.26 |
| 250 | 10" | 21.44 |
| 300 | 12" | 25.4 |
| 350 | 14" | 27.79 |
| 400 | 16" | 30.96 |
| 450 | 18" | 34.93 |
| 500 | 20" | 38.1 |
| 600 | 24" | 46.02 |
| 700 | 28" | |
| 750 | 30" | |
| 800 | 32" | |
| 900 | 36" | |
| 1000 | 40" | |
| 1200 | 48" |