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.

Built for Aggressive FluidsChemical plants deal with some of the harshest liquids imaginable — concentrated acids, strong alkalis, volatile solvents. The QBY diaphragm pump handles these safely becaus…
| Flow Rate | 0-30m³/h |
|---|---|
| Head | 0 – 50 / 70m |
| Inlet / Outlet Diameter | 10 – 100mm |
| Material | PP Engineering Plastic, Aluminum Alloy, Cast Iron, Stainless Steel |
Built for Aggressive Fluids
Chemical plants deal with some of the harshest liquids imaginable — concentrated acids, strong alkalis, volatile solvents. The QBY diaphragm pump handles these safely because the fluid never contacts moving parts. The diaphragms isolate the liquid completely.
Choosing the Right Materials
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Polypropylene body + PTFE diaphragms – best for strong acids
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Stainless steel body + FKM diaphragms – good for solvents and high temperatures
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PVDF body – for the most aggressive chemicals
Safety Features
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No electrical spark risk
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No mechanical seal leaks
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Can dead-head without damage
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Self-priming reduces handling of chemicals
Typical Chemical Transfer Jobs
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Hydrochloric acid unloading
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Caustic soda circulation
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Toluene and xylene transfer
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Plating bath solution handling
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Waste acid neutralization
Applications Summary:
acid transfer, caustic handling, solvent circulation, chemical dosing, plating bath, waste neutralization, chemical processing
Thanks for choosing HAQUANPUMP. We offer QBY diaphragm pumps built for chemical service. Tell us what you’re pumping, and we’ll recommend the right configuration.
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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