| DN | INCH | SCH 80 |
| 8 | 1/4" | 3.02 |
| 10 | 3/8" | 3.2 |
| 15 | 1/2" | 3.73 |
| 20 | 3/4" | 3.91 |
| 25 | 1" | 4.55 |
| 32 | 1¼" | 4.85 |
| 40 | 1½" | 5.08 |
| 50 | 2" | 5.54 |
| - | 2½" | 7.01 |
| 65 | - | - |
| 80 | 3" | 7.62 |
| - | 3½" | 8.08 |
| 100 | 4" | 8.56 |
| 125 | - | - |
| - | 5" | 9.53 |
| 150 | 6" | 10.97 |
| 200 | 8" | 12.7 |
| 250 | 10" | 15.09 |
| 300 | 12" | 17.48 |
| 350 | 14" | 19.05 |
| 400 | 16" | 21.44 |
| 450 | 18" | 23.83 |
| 500 | 20" | 26.19 |
| 600 | 24" | 30.96 |
| 700 | 28" | |
| 750 | 30" | |
| 800 | 32" | |
| 900 | 36" | |
| 1000 | 40" | |
| 1200 | 48" |