Introduction
Performance Curve
Installation Drawing
Model Significance
| Materials of Fluid Contact Part | |||||||
| Cast steal | Nodular Cast Iron |
Aluminum Alloy |
Stainless Steel （304/316L） |
PP | PVDF | Lining PVDF | Teflon |
| G | Q | L | P/P316L | S | F | CF | T |
| Materials of Diaphragm | |||||||
| Santoprene | Teflon | Nitrile | Polyether | Super Teflon | |||
| A | T | D | M | C | |||
| Santoprene +Teflon |
Santoprene +Super Teflon |
Polyether +Teflon |
Polyether +Super Teflon |
||||
| T | N | K | H | ||||
| Materials of Valve Ball & Ball Beat | |||||||
| PTFE | Santoprene | Teflon | SS304/SS316L | PP | Nitrile | ||
| F | A | T | P/P316L | S | D | ||
Specification Parameters
| Model | Max. Flow Rate（L/min） | Max. Head （m） |
Max. Suction Height（m） | Max. Working Pressure（bar） | Fluid Inlet/Outlet Size（inch） | Air Inlet Size（inch） | Max. Particle Size（mm） | Air Comsumption（m³/min） |
| QBY3-10 | 22 | 70 | 4 | 7 | 3/8 | 1/4 | 1.5 | 0.18 |
| QBY3-15 | 22 | 70 | 4 | 7 | 1/2 | 1/4 | 1.5 | 0.18 |
| QBY3-20 | 57 | 70 | 4.5 | 7 | 3/4 | 1/4 | 2.5 | 0.36 |
| QBY3-25 | 57 | 70 | 4.5 | 7 | 1 | 1/4 | 2.5 | 0.36 |
| QBY3-32 | 170 | 84 | 5.48 | 8.4 | 1-1/4 | 1/2 | 3.2 | 0.67 |
| QBY3-40 | 170 | 84 | 5.48 | 8.4 | 1-1/2 | 1/2 | 3.2 | 0.67 |
| QBY3-50 | 378.5 | 84 | 5.48 | 8.4 | 2 | 1/2 | 4.8 | 0.9 |
| QBY3-65 | 378.5 | 84 | 5.48 | 8.4 | 2-1/2 | 1/2 | 4.8 | 0.9 |
| QBY3-80 | 568 | 84 | 5.48 | 8.4 | 3 | 1/2 | 6.4 | 1.5-2 |
| QBY3-100 | 568 | 84 | 5.48 | 8.4 | 4 | 1/2 | 6.4 | 1.5-2 |
| QBY3-125 | 1041 | 84 | 7.6 | 8.4 | 5 | 3/4 | 9.4 | 3 |
| BFQ-25 | 116 | 84 | 5.48 | 8.4 | 1 | 1/2 | 3.2 | 0.67 |
| BFQ-40 | 378.5 | 84 | 5.48 | 8.4 | 1-1/2 | 1/2 | 4.8 | 0.9 |
| BFQ-50 | 568 | 84 | 5.48 | 8.4 | 2 | 1/2 | 6.4 | 1.5-2 |
| BFQ-80 | 1041 | 84 | 7.6 | 8.4 | 3 | 3/4 | 9.4 | 3 |
| BFQ-125 | 2000 | 60 | 4 | 6.3 | 5 | 1 | 9.4 | 13 |
