| EQUIVALENCE DES DIAMETRES |
| DN | 8 | 10 | 15 | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | 350 | 400 | 450 | 500 | 600 |
| Pouce | 1/4" | 3/8" | 1/2" | 3/4" | 1" | 1"1/4 | 1"1/2 | 2" | 2"1/2 | 3" | 4" | 5" | 6" | 8" | 10" | 12" | 14" | 16" | 18" | 20" | 24" |
| Gaz | 8/13 | 12/17 | 15/21 | 20/27 | 26/32 | 33/42 | 40/49 | 50/60 | 66/76 | 80/90 | 100/114 |