QBY Air-Operated Diaphragm Pump (AODD)QBYS Stainless Steel Pneumatic Diaphragm Pump
The QBYS is the stainless-steel version of the QBY pneumatic diaphragm pump — SS304/SS316 for corrosive, food and hygienic fluids. Full size range, in stock.

Perfect for Dirty WaterWastewater treatment plants deal with everything from clear effluent to thick sludge. The QBY diaphragm pump handles the full range. Its large solids passage means fewer clogs a…
| Flow Rate | 0-30m³/h |
|---|---|
| Head | 0 – 50 / 70m |
| Inlet / Outlet Diameter | 10 – 100mm |
| Material | PP Engineering Plastic, Aluminum Alloy, Cast Iron, Stainless Steel |
Perfect for Dirty Water
Wastewater treatment plants deal with everything from clear effluent to thick sludge. The QBY diaphragm pump handles the full range. Its large solids passage means fewer clogs and less maintenance.
Treatment Plant Uses
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Sludge transfer from settling tanks
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Filter press feeding
•
Sump pumping in wet wells
•
Chemical dosing for pH adjustment
•
Polymer mixing and transfer
•
Grease trap cleaning
Advantages in Wastewater
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Self-priming — lifts from pits and sumps
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Dry-run safe — survives intermittent flow
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No seals to leak — cleaner operation
•
Portable — move it where needed

Maintenance in Dirty Service
Flush with clean water after sludge pumping. Inspect diaphragms monthly. Replace ball valves if they show wear from abrasive particles.
Applications Summary:
sludge transfer, filter press feed, sump pumping, chemical dosing, polymer transfer, grease trap cleaning, wastewater treatment
Thanks for reading from HAQUANPUMP. We provide QBY diaphragm pumps for wastewater applications worldwide. Ask us about sludge-handling configurations.
QBY Air-Operated Diaphragm Pump (AODD)The QBYS is the stainless-steel version of the QBY pneumatic diaphragm pump — SS304/SS316 for corrosive, food and hygienic fluids. Full size range, in stock.
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