Air-operated double-diaphragm pump (AODD)
An AODD pump uses compressed air and is selected by liquid, flow, discharge pressure, suction conditions, air supply, solids and wetted materials.
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Ask about this rangeJIABO · AODD and diaphragm pump manufacturer in China
Air-operated double-diaphragm and electric diaphragm pumps for industrial liquid transfer.
JIABO QBY air-operated double-diaphragm (AODD) pumps use compressed air, while DBY diaphragm pumps use an electric drive. Buyers use these positive-displacement pump families for chemical transfer, viscous liquids, slurry and process fluids after confirming flow, pressure, solids, temperature and wetted-material compatibility.
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Diaphragm pumps range.
Supplied photos show configurations, not certified ratings for a specific model. Request current performance and material data before specifying a pump.
QBY
QBY Air-Operated Double Diaphragm Pump
Air-operated double diaphragm (AODD) pumps for chemicals, viscous liquids and solids-bearing process fluids where compressed-air drive and compatible wetted materials are required.
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DBY
DBY Electric Diaphragm Transfer Pump
Electric diaphragm pumps for metered or controlled transfer of chemicals, viscous liquids and process fluids without a compressed-air supply.
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Values are transcribed from the supplied manufacturer catalogs. Confirm the current curve, materials, and operating limits before ordering.
QBY3 air-operated double-diaphragm pumps
Representative catalog models from 10 mm to 125 mm connections. Maximum flow and head are separate limits, not a guaranteed combined duty point.
| Model | Max. flow | Max. head | Max. suction | Max. pressure | Connection | Max. particle |
|---|---|---|---|---|---|---|
| QBY3-10 | 22 L/min | 70 m | 4.0 m | 0.70 MPa | 10 mm | 1.5 mm |
| QBY3-25 | 57 L/min | 70 m | 4.5 m | 0.70 MPa | 25 mm | 2.5 mm |
| QBY3-40 | 170 L/min | 84 m | 5.48 m | 0.84 MPa | 40 mm | 3.2 mm |
| QBY3-50 | 378.5 L/min | 84 m | 5.48 m | 0.84 MPa | 50 mm | 4.8 mm |
| QBY3-80 | 568 L/min | 84 m | 5.48 m | 0.84 MPa | 80 mm | 6.4 mm |
| QBY3-125 | 1,041 L/min | 84 m | 2.4-7.6 m | 0.84 MPa | 125 mm | 9.4 mm |
Range comparison
Which arrangement should you investigate?
These distinctions help narrow the inquiry. They are not a substitute for an exact model curve or materials list.
| Series / arrangement | What distinguishes it | Confirm before selection |
|---|---|---|
| QBY pneumatic | Air-operated diaphragm arrangement where a suitable compressed-air supply is available. | Air pressure and consumption, fluid compatibility, flow and discharge pressure. |
| DBY electric | Electric-drive diaphragm arrangement for sites with a matching power supply. | Motor and electrical protection, control needs, fluid compatibility and duty curve. |
Supplied product photos
See the equipment.
Photos show configurations within this range. They do not establish a model’s flow, head, pressure or materials; check the current datasheet before ordering.
Typical applications
Where it may fit.
- Chemical transfer after wetted-material compatibility review
- Viscous-liquid, slurry and solids-bearing process transfer
- Self-priming or intermittent transfer where air or electric drive suits the site
For a model recommendation
What to send us.
- Liquid chemistry, viscosity, solids and temperature
- Required flow, discharge pressure and suction conditions
- Available compressed air or electrical supply
- Diaphragm, ball, seal and wetted-part materials
Popular buyer searches
Find the right diaphragm pumps by application.
These search terms are useful starting points. Final selection still requires the exact liquid, duty point and installation conditions.
Pneumatic diaphragm pump for chemical transfer
Confirm the exact chemical, concentration and temperature against the body, diaphragm, ball, seat and seal materials.
Diaphragm pump for slurry or viscous liquid
Some configurations can handle solids-bearing or viscous products, but capacity reduces as viscosity and suction losses rise; request a duty-specific check.
Buyer questions
Diaphragm pumps: practical answers.
For final selection, confirm the exact model and operating conditions with JIABO.
What is an AODD pump?
AODD means air-operated double-diaphragm pump. Compressed air alternately drives two diaphragms, creating suction and discharge strokes without a conventional rotating impeller in the pumped liquid.
When should I consider an air-operated diaphragm pump for chemical transfer?
Consider one when compressed air is available and the liquid, viscosity, solids and required pressure fit the selected model. Confirm diaphragm, ball, seat, seal and body compatibility with the exact chemical concentration and temperature.
Can a diaphragm pump handle viscous liquid or slurry?
Some configurations can transfer viscous or solids-bearing fluids, but capacity falls as viscosity and suction losses rise. Provide viscosity, solids size and concentration, suction lift, flow and discharge pressure for model selection.
Should I choose QBY or DBY?
QBY is air-operated and DBY is electric-drive. Start with the available utility and site requirements, then compare the exact models' flow, pressure, wetted materials and controls.
Which parts must be checked for liquid compatibility?
Confirm the diaphragm, balls, seats, seals and other wetted parts against the actual liquid, concentration and temperature. A series name alone does not guarantee compatibility.
Can I assume any diaphragm model may run dry?
No. Operating limits vary by model and configuration. Request the current instructions before relying on dry-run or solids-handling capability.
Technical documents
Use the supplied manuals and catalogs.
Check model tables, installation instructions, materials, and safety notes in the original documents.
Before choosing a model
Prepare the duty point and liquid details.
Our selection guides show what to measure and what to ask for in the current technical sheet.
Talk to JIABO
Ask for the current model table and quotation.Share the liquid, required duty point, power supply and installation details.
Send an inquiry
Leave your pump requirements.
Include the model if known. For selection help, add the liquid, required flow, head or pressure, power supply, and installation conditions.
Email: sales@jiabofluid.comTel: +86 571 2328 1234Solar pump WhatsApp: +86 133 4581 6945Other pumps WhatsApp: +86 137 6186 8190No. 788, Jintang Road, Jiangnan Town, Tonglu County, Hangzhou City, Zhejiang Province, China