Self-priming operation
Starts without flooding the suction line and supports negative suction conditions in many transfer duties.
Industrial Pump Manufacturer
AODD Pump for Chemical and Process Fluid Transfer
Sando Rotary air operated double diaphragm pumps are engineered for corrosive chemicals, abrasive slurry, wastewater, paints, solvents, food, pharma and hazardous-duty transfer.
999 LPM
Maximum flow capacity
8 bar
Maximum discharge pressure
24 ft
Wet suction lift capability
15 ft
Dry suction lift capability
1984
Manufacturing experience
How It Works
Air operated diaphragm pump built for difficult liquids
An AODD pump uses compressed air to move two diaphragms in alternating strokes. This creates suction and discharge without mechanical seals, making the pump suitable for leak-sensitive, abrasive, viscous and corrosive fluids.
Sealless fluid chamber
No rotating mechanical seal, reducing leakage risk when handling chemicals, solvents and process liquids.
Dry-run tolerant
AODD pumps can tolerate short dry-running events, useful for drum emptying and batch transfer.
Hazardous-duty friendly
Pneumatic drive avoids electric motor placement near fluid transfer points where correct configuration permits.
Solids and slurry handling
Large flow paths and check valves help move sludge, suspended solids and abrasive media.
Controlled flow output
Flow can be adjusted by air pressure and air volume, making installation and process tuning straightforward.
Pump Range
Choose Metallic or Non-Metallic AODD pumps by MOC
Use the tab buttons to compare the two main AODD pump constructions. The right choice depends on chemical compatibility, abrasion, temperature, conductivity, mechanical strength and safety requirements.
Metallic AODD Pumps
Heavy-duty pump construction for oils, paints, solvents, hydrocarbons, effluent, slurry and demanding industrial transfer. Metallic bodies provide mechanical strength, grounding benefits and long operating life in rugged plants.
Body MOC
Aluminium, SS304, SS316, SS316L, Super Duplex
Best For
Solvents, oils, paint, slurry, wastewater
Duty
Robust transfer and hazardous-area configurations
Metallic Pump Series
Non-Metallic AODD Pumps
Corrosion-resistant construction for acids, alkalis, plating chemicals, aggressive solvents and chemical process transfer. Non-metallic bodies are selected where wetted-part compatibility is the primary requirement.
Body MOC
PP, PVDF, Conductive PVDF, Conductive PP
Best For
Acids, caustic, chemicals, pharma process
Duty
Corrosive transfer and chemical compatibility
Non-Metallic Pump Series
Technical Specifications
AODD pump technical data for initial selection
This table gives selection-level guidance for Sando AODD pumps. Final pump sizing should consider liquid name, flow, head, temperature, viscosity, solids, suction condition and chemical compatibility.
General Performance Range
Air operated double diaphragm pump| Parameter | Specification Range | Engineering Note |
|---|---|---|
| Pump Type | Air operated double diaphragm pump | Positive displacement, pneumatic drive, sealless fluid chamber. |
| Connection Size | 1/2 inch to 3 inch models | Selected by flow rate, line size, solids passage and process duty. |
| Maximum Flow Rate | Up to 999 l/min | Actual output depends on air pressure, air volume, discharge head and fluid properties. |
| Maximum Pressure | Up to 8 bar | Air supply pressure and system back pressure must be checked during selection. |
| Suction Lift | Up to 24 ft wet suction lift, Up to 15 ft dry suction lift | Viscosity, vapor pressure and suction pipe losses affect practical suction performance. |
| Fluid Handling | Thin liquids, viscous liquids, sludge, slurry and suspended solids | Use correct diaphragm, ball and seat combination for abrasion and compatibility. |
| Operating Media | Chemicals, solvents, paint, ink, wastewater, pharma intermediates, food liquids | Wetted part MOC must be confirmed against fluid concentration and temperature. |
| Air Requirement | Clean and dry compressed air recommended | Air quality improves air valve life and maintains stable pump performance. |
Performance Curves
AODD pump performance curve charts
Use these model-wise performance curves for initial flow and air consumption reference. Final selection should be checked against fluid properties, discharge head, suction condition and available compressed air.
Material Of Construction
AODD pump MOC comparison table
Material of construction controls pump life, corrosion resistance, safety and maintenance cost. Sando Rotary can guide compatible combinations for the pump body, diaphragm, ball and seat.
MOC Selection Matrix
Wetted parts and application fit| Construction | Wetted Body MOC | Diaphragm Options | Ball / Seat Options | Recommended Use |
|---|---|---|---|---|
| Metallic | Aluminium, SS304, SS316, SS316L, Super Duplex | Neoprene, Buna-N, EPDM, PTFE, Santoprene | SS, PTFE, EPDM, Buna-N, Santoprene | Oils, solvents, paint, slurry, wastewater and rugged transfer duties. |
| Non-Metallic | Polypropylene, PVDF, Conductive PVDF, ECTFE options | PTFE, EPDM, Santoprene and chemical-compatible elastomers | PTFE, EPDM, PVDF, PP and elastomer options | Acids, alkalis, plating chemicals, corrosive transfer and aggressive fluids. |
| Hazardous Area | Conductive plastic or grounded metallic construction | Application-specific diaphragm selection | Static-safe compatible material combinations | Flammable liquids and explosive atmospheres where approved configuration is required. |
| Sanitary / Process | Selected stainless steel or compatible non-metallic body | Food, pharma or process-compatible diaphragm materials | Material selected by fluid and cleaning method | Food, pharma, cosmetics and hygienic process transfer where applicable. |
Selection Workflow
How Sando helps select the right AODD pump
For the best performance, share the application details before ordering. Our team checks the duty point and wetted-part material against the fluid and operating condition.
1
Confirm fluid
Liquid name, concentration, temperature, viscosity, solids and hazard classification.
2
Size the pump
Required flow, discharge head, suction lift, pipe size and air availability.
3
Select MOC
Body, diaphragm, ball and seat materials matched to chemical compatibility.
4
Quote configuration
Recommended pump model, construction, accessories and technical documentation.
Popular Models
Explore AODD pump models
A quick view of available AODD products from the Sando catalog. Open the full metallic or non-metallic range for more model-level details.
AOD 300 PF Metallic
AOD 300 SS / Aluminum Air Operated Double Diaphragm Pump is a heavy-duty industrial pump …
AOD 50 PF METALLIC
AOD 50 PF Metallic is a 2" BSP air-operated double diaphragm pump made of robust metal co…
AOD 80 PF METALLIC
AOD 80 PF Metallic is a high-capacity 3" BSP air-operated diaphragm pump built for indust…
AOD 666 PF METALLIC
AOD 666 PF Metallic is a robust 2½" BSP air-operated diaphragm pump designed for high-vol…
P 25 PF PP Non-Metallic
P 25 PF PP Non-Metallic Pump is a compact, corrosion-resistant diaphragm pump with 1/4" B…
AOD 150 PF Non-Metallic
AOD 150 PP/PVDF Air Operated Double Diaphragm Pump is a corrosion-resistant AODD pump des…
AOD 300 PF Non-Metallic
AOD 300 PP/PVDF Air Operated Double Diaphragm Pump is designed for safe and efficient tra…
AOD 400 PF Non-Metallic
Sando AOD 400 PP/PVDF Air Operated Double Diaphragm Pump is designed for safe and efficie…
FAQ
Frequently asked questions about AODD pumps
Quick answers for buyers comparing air operated double diaphragm pumps by working principle, application, price, material and available sizes.
What is an Air Operated Double Diaphragm (AODD) Pump?
An Air Operated Double Diaphragm pump is a positive displacement pump that uses compressed air and two flexible diaphragms to transfer liquids without a mechanical seal.
How does an AODD pump work?
Compressed air alternately moves two diaphragms. One diaphragm creates suction and draws liquid into the chamber, while the other pushes liquid out through check valves.
What are the advantages of using an AODD pump?
AODD pumps are self-priming, dry-run tolerant, sealless and simple to control with air pressure. They are suitable for corrosive, abrasive, viscous and solids-laden fluids.
In which industries are AODD pumps used?
AODD pumps are used in chemical, pharmaceutical, food and beverage, paint and ink, wastewater, mining, ceramics, oil and gas, and general process industries.
What is the price of an AODD pump in India?
AODD pump price in India depends on pump size, material of construction, diaphragm material, flow requirement, accessories and application duty. Share your process details for an accurate quote.
Who is the best AODD pump manufacturer in India?
Sando Rotary Equipments PVT LTD manufactures metallic and non-metallic AODD pumps in India with application support for chemical, slurry, wastewater and process transfer duties.
What fluids can an AODD pump handle?
An AODD pump can handle chemicals, acids, alkalis, solvents, paints, inks, oils, wastewater, sludge, slurry, food liquids, pharma intermediates and viscous liquids when selected with compatible wetted parts.
What sizes are available for Sando AODD pumps?
Sando AODD pumps are available from 1/2 inch to 3 inch connection sizes, with metallic and non-metallic constructions selected according to flow, pressure and fluid compatibility.
Need help selecting an AODD pump?
Send your liquid name, flow rate, head, temperature, viscosity, suction condition and preferred MOC. Sando Rotary will recommend a pump construction suitable for your application.