The QBY5 is the fifth-generation QBY, and its headline change is the air-distribution valve. Older air valves could reach a “dead point” and stall; the QBY5 uses a three-way pilot valve that eliminate…
| Flow Rate | 0-30m³/h |
|---|---|
| Head | 0 – 50 / 70m |
| Inlet / Outlet Diameter | 10 – 100mm |
| Material | PP Engineering Plastic, Aluminum Alloy, Cast Iron, Stainless Steel |
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The QBY5 is the fifth-generation QBY, and its headline change is the air-distribution valve. Older air valves could reach a “dead point” and stall; the QBY5 uses a three-way pilot valve that eliminates that dead point, so the pump keeps cycling smoothly and will not freeze mid-stroke.
In practice that means more reliable starting, steadier flow and less fiddling on the line — useful on continuous duties where an unattended pump must simply keep running. It keeps all the familiar QBY strengths: self-priming, run-dry, seal-less and spark-free.
QBY Pneumatic Diaphragm Pump Technical Parameters
| Parameter | Specification Range |
|---|---|
| Flow Rate | 0 – 30 m³/h |
| Max Head | 0 – 50 / 70 m |
| Port Size (Caliber) | 10 – 100 mm |
| Working Temperature | -15℃ ~ +150℃ |
| Working Air Pressure | 0.1 – 0.7 MPa |
| Self-Priming Height | 5 – 7 m |
| Max Passable Solid Particle | 10 mm |
Applications: continuous chemical transfer, wastewater, food and beverage, coatings, ceramics, mining slurry, unattended process duty
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