| Średnica węża DN |
Gwint | D [mm] |
B [mm] |
System oznaczeń | Symbol |
| 6 | 9/16''-18 | 4 | 24 | 1 | K21 06 9/16''-18 |
| 10 | 11/16''-16 | 6.7 | 27.6 | 1 | K21 10 11/16''-16 |
| 13 | 13/16''-16 | 9.3 | 30.6 | 1 | K21 13 13/16''-16 |
| 16 | 1''-14 | 12.5 | 34.7 | 1 | K21 16 1''-14 |
| 20 | 1.3/16''-12 | 15 | 39 | 1 | K21 20 1.3/16''-12 |
| 25 | 1.7/16''-12 | 19.8 | 41.8 | 1 | K21 25 1.7/16''-12 |
| 32 | 1.11/16''-12 | 26 | 46.3 | 1 | K21 32 1.11/16''-12 |
| 40 | 2''-12 | 32 | 48.6 | 1 | K21 40 2''12 |