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.

Where only a small, steady stream of an aggressive fluid needs moving, the QBY-10 is the answer. As the smallest model in the QBY family, its 10 mm (3/8 in) port suits dosing, sampling and tight-space…
| Flow Rate | 0-30m³/h |
|---|---|
| Head | 0 – 50 / 70m |
| Inlet / Outlet Diameter | 10 – 100mm |
| Material | PP Engineering Plastic, Aluminum Alloy, Cast Iron, Stainless Steel |
Where only a small, steady stream of an aggressive fluid needs moving, the QBY-10 is the answer. As the smallest model in the QBY family, its 10 mm (3/8 in) port suits dosing, sampling and tight-space transfer — yet it still self-primes without prime water and runs dry without harm.
| Port size | 10 mm (3/8 in) |
| Max flow | 0.8 m³/h |
| Max head | 60 m |
| Suction lift | 5 m |
| Max particle | 1 mm |
| Air consumption | 0.3 m³/min (≤7 bar) |
Because it is air-driven, there is no motor to burn out if the line runs dry, and no electric spark near flammable media. Body options run from reinforced polypropylene for acids to stainless steel for clean duties.
Applications: chemical dosing, laboratory sampling, printing ink, cosmetics, reagent transfer, small-batch adhesives
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 |
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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.
QBY Air-Operated Diaphragm Pump (AODD)The Full QBY FamilyThe QBY series covers eight standard sizes from 10 mm to 100 mm. Flow ranges from 0.8 m³/h to 30 m³/h. Head goes up to 60 meters. There’s a model for almost every job. Complete Mode…
QBY Air-Operated Diaphragm Pump (AODD)When You Need Big FlowThe QBY-80 and QBY-100 are the largest standard models. They handle high-volume transfer jobs where smaller pumps would struggle. Both models share the same robust design princip…