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Action flow (L/min) |
back coefficient K |
1.6~2.3 |
≥0.6 |
2.2-~3.0 | |
2.8-3.7 |
≥0.7
|
3.6~4.85 | |
4.65~7.0 | |
6.8~9.8 |
≥0.75
|
9.4~13 | |
12.5~17 | |
16~21.5 | |
20.5~27.5 | |
27~34 | |
33~41 | |
40~50 |