Why Self-Priming Matters Many pumps need to be below the liquid level or require a foot valve to hold prime. The QBY doesn’t. It pulls liquid up from up to 7 meters below. This simplifies installation…
| Flow Rate | 0-30m³/h |
|---|---|
| Head | 0 – 50 / 70m |
| Inlet / Outlet Diameter | 10 – 100mm |
| Material | PP Engineering Plastic, Aluminum Alloy, Cast Iron, Stainless Steel |
Why Self-Priming Matters
Many pumps need to be below the liquid level or require a foot valve to hold prime. The QBY doesn’t. It pulls liquid up from up to 7 meters below. This simplifies installation and reduces cost.
How It Achieves Self-Priming
The diaphragms create strong suction on each stroke. The ball valves prevent backflow. Once primed, the pump stays primed for the next start.
Installation Flexibility
Limitations
Suction lift decreases with altitude and with very thick fluids. Keep suction pipe short and straight for best performance.
Applications Summary:
tank unloading, drum emptying, pit pumping, sump drainage, above-tank mounting, self-priming applications
Thanks for visiting HAQUANPUMP. We offer QBY diaphragm pumps with excellent self-priming capability. Contact us for application advice.
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