BST acid and alkali resistance series
| NO. | model | Flow rate (m³/h) | Head(m) | Enter/Suction diameter(mm) | out/Exhaust diameter(mm) | supplier |
| 1 | BST-40-3 | 25 | 3.5 | 25 | 20 | Check → |
| 2 | BST-50-2 | 28 | 4 | 25 | 20 | Check → |
| 3 | BST-50-3 | 32 | 5 | 25 | 20 | Check → |
| 4 | BST-50-5 | 70 | 6 | 40 | 25/20 | Check → |
| 5 | BST-65-3 | 80 | 6.5 | 40 | 25/20 | Check → |