Air Operated Double Diaphragm (AODD) Pumps
Efficient Fluid Handling with Air-Operated Double Diaphragm Pumps
An Air-Operated Double Diaphragm (AODD) pump is a type of positive displacement pump that uses compressed air to transfer fluids safely and efficiently. Unlike centrifugal pumps, AODD pumps do not use rotating parts, making them highly reliable for handling abrasive, viscous, shear-sensitive, and solids-laden fluids.
AODD pumps are widely used across Southeast Asia in industries such as:
- Wastewater treatment
- Palm oil & oleochemical processing
- Chemical manufacturing
- Food & beverage production
Because of their rugged design and flexibility, AODD pumps are often the preferred choice for challenging industrial environments.
How Does an AODD Pump Work?
An Air-Operated Double Diaphragm (AODD) pump uses compressed air to move two diaphragms back and forth, creating suction and discharge cycles to transfer fluid.
- Compressed air enters one side, pushing one diaphragm outward.
- Fluid is discharged through the outlet valve.
- Suction draws fluid in on the opposite side.
- Air valve switches automatically for continuous operation.
This design allows AODD pumps to self-prime, run dry, and handle abrasive or viscous fluids.
Common Applications of AODD Pumps
AODD pumps are used across a wide range of industries in Southeast Asia, where reliability and versatility are essential.
- Wastewater Treatment – Sludge transfer, dewatering, chemical dosing
- Palm Oil & Oleochemical – Handling viscous and solids-containing fluids
- Chemical Processing – Corrosive and hazardous liquids
- Food & Beverage – Hygienic transfer of liquids and semi-solids
- General Industry – Paints, coatings, adhesives, and slurry handling