
| Size (mm) | Class | Overload Flow (m3/h) | Permanent flow (m3/h) | Transitional Flow (m3/h) | Minimunm Flow (m3/h) | Min Reading (m3) | Max Reading (m3) |
| 50 | B | 31.25 | 25 | 0.8 | 0.5 | 0.001 | 999999 |
| 65 | B | 50 | 40 | 1.28 | 0.8 | 0.001 | 999999 |
| 80 | B | 78.75 | 63 | 2.016 | 1.26 | 0.001 | 999999 |
| 100 | B | 125 | 100 | 3.2 | 2 | 0.001 | 9999999 |
| 125 | B | 200 | 160 | 5.12 | 3.2 | 0.01 | 9999999 |
| 150 | B | 312.5 | 250 | 8 | 5 | 0.01 | 9999999 |
| 200 | B | 500 | 400 | 12.8 | 8 | 0.01 | 9999999 |
| 250 | B | 787.5 | 630 | 20.16 | 12.6 | 0.01 | 9999999 |
| 300 | B | 1250 | 1000 | 32 | 20 | 0.01 | 9999999 |