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AODD pumps use compressed air to move fluids efficiently. They are versatile and reliable. These pumps handle everything from water to abrasive and viscous fluids. Their air distribution system ensures consistent performance.
AODD pumps operate using two diaphragms that move back and forth, driven by compressed air.
This motion creates suction and discharge, allowing fluid transfer. Flexible diaphragms separate the fluid from the air side. Check valves control the flow direction, ensuring efficiency. The air valve system regulates the compressed air supply, optimizing performance and reducing air consumption in high-performance applications.
ARO’s EXP Series pumps feature advanced air valve systems that maximize efficiency in positive displacement applications.
Selecting the right AODD pump depends on the following factors:
Choose the best diaphragm pump for your application by using the online diaphragm pump selector.
The flow rate can be calculated using the formula:
Flow rate (gpm) = Stroke volume x Strokes per minute.
By measuring the volume per stroke and adjusting the stroke rate, the flow rate is accurately determined. The compressed air supply controls the pump’s speed and efficiency.
Pump capacity is influenced by the pump size, air pressure, and operating conditions. Manufacturer specifications provide precise values for capacity. Adjusting the compressed air supply optimizes performance. ARO diaphragm pumps offer flexible flow adjustments ranging from 1 l/min to 1,079 l/min (285 gpm), making them suitable for a wide range of industrial applications.
Yes, diaphragm pumps can run continuously, but proper maintenance is essential.
Preventing overheating and diaphragm wear is key to ensuring long-term operation. Regular inspections prevent diaphragm damage, and monitoring the compressed air supply improves efficiency. Proper installation also helps reduce unnecessary wear.
ARO’s Pro-Series pumps are designed for stall-free continuous operation, ideal for demanding applications in industries such as chemical processing and wastewater treatment.
A typical 3-inch AODD pump has a maximum flow rate of 230-260 gpm (870-984 l/min), depending on the air supply and operating conditions.
ARO’s EXP 3” diaphragm pumps are capable of flow rates up to 1,079 l/min (285 gpm), providing superior durability for bulk fluid transfer and high-demand industries.
| Pump Size | Max Flow (l/min) | Max Flow (gpm) | Max Pressure (PSI) | Max Pressure (Bar) |
|
1/2" |
56-61 | 15-16 | 100-120 | 6.9-8.3 |
| 1" | 170-180 | 45-47 | 100-120 | 6.9-8.3 |
| 1.5" | 340-400 | 90-105 | 100-120 | 6.9-8.3 |
| 2" | 500-540 | 132-143 | 100-120 | 6.9-8.3 |
| 3" | 870-984 | 230-260 | 100-120 | 6.9-8.3 |
| 4" | 1070-1135 | 280-300 | 100-120 | 6.9-8.3 |
ARO’s air operated diaphragm pumps support a wide range of fluid pressures and flow rates, ensuring optimal performance for different applications.
Pump capacity varies depending on the application and pump size. Small pumps typically handle flow rates between 10-100 gpm (37-378 l/min), while larger pumps can exceed 1,000 gpm (3,785+ l/min). AODD pumps offer flexible flow rates, which are determined by air consumption.
Applications that require high-volume fluid transfer benefit from ARO’s EXP Series, providing process-grade performance with flow rates up to 1,079 l/min (285 gpm).
A typical 1.5-inch diaphragm pump delivers 340-400 gpm (1,287-1,514 l/min), depending on air pressure and fluid type. ARO’s Pro-Series 1.5” pumps ensure high efficiency and reliability for industrial and process applications.
The strokes per minute (SPM) can be calculated with the formula:
SPM = Flow rate / Stroke volume.
By measuring the fluid moved per stroke and adjusting the air supply, flow can be accurately controlled. AODD pumps use an air valve system to regulate performance, and ARO pumps allow precise regulation with air filters and needle valves, ensuring optimal performance and cost-effective operation.
Large AODD pumps can exceed 1,000 gpm (3,785 l/min). Factors such as air pressure, diaphragm size, and compressed air supply control the pump’s output. Regular maintenance ensures consistent performance.
