| NPS | DIN /ISOWALL THICKNESS | |||||
| DN | INCH | 1 | 2 | 3 | 4 | 5 |
| 15 | 1/2" | 1.6 | - | 2 | 3.2 | 4 |
| 20 | 3/4" | 1.6 | - | 2.3 | 3.2 | 4 |
| 25 | 1" | 2 | - | 2.6 | 3.2 | 4 |
| 32 | 1¼" | 2 | - | 2.6 | 3.6 | 4 |
| 40 | 1½" | 2 | - | 2.6 | 4 | 5 |
| 50 | 2" | 2 | - | 2.9 | 4.5 | 5.6 |
| - | 2½" | - | - | - | - | - |
| 65 | - | 2.3 | - | 2.9 | 5 | 7.1 |
| 80 | 3" | 2.3 | - | 3.2 | 5.6 | 8 |
| - | 3½" | - | - | - | - | - |
| 100 | 4" | 2.6 | - | 3.6 | 6.3 | 8.8 |
| 125 | - | 2.6 | - | 4 | 6.3 | 10 |
| - | 5" | - | - | - | - | - |
| 150 | 6" | 2.6 | 4 | 4.5 | 7.1 | 11 |
| 200 | 8" | 2.9 | 4.5 | 6.3 | 8 | 12.5 |
| 250 | 10" | 2.9 | 5 | 6.3 | 8.8 | 14.2 |
| 300 | 12" | 2.9 | 5.6 | 7.1 | 10 | 16 |
| 350 | 14" | 3.2 | 5.6 | 8 | 11 | 17.5 |
| 400 | 16" | 3.2 | 6.3 | 8.8 | 12.5 | 20 |
| 450 | 18" | 4 | 6.3 | 10 | 14.2 | 22.2 |
| 500 | 20" | 4 | 6.3 | 11 | 16 | 25 |
| 600 | 24" | 5 | 6.3 | 12.5 | 17.5 | 30 |
| 700 | 28" | 5 | 7.1 | 12.5 | ||
| 750 | 30" | - | - | - | ||
| 800 | 32" | 5.6 | 8 | 12.5 | ||
| 900 | 36" | 6.3 | 10 | 12.5 | ||
| 1000 | 40" | 6.3 | 10 | 12.5 | ||
| 1200 | 48" | 6.3 | 12.5 | - | ||