AODD (Air-Operated Double Diaphragm) pumps are a type of positive displacement pump that uses compressed air as the driving force to transfer fluids. These pumps are widely used in various industries for their versatility, reliability, and ability to handle a wide range of fluids, including corrosive, abrasive, and viscous liquids.
The operating principle of AODD pumps involves the reciprocating movement of two diaphragms, which create a pumping action. When compressed air is supplied to one side of the diaphragm, it flexes inward, drawing fluid into the pump chamber. Simultaneously, the other diaphragm moves outward, forcing the fluid out of the pump chamber. The reciprocating action of the diaphragms creates a pulsating flow, allowing the pump to handle solids, slurries, and delicate or shear-sensitive liquids without causing damage.
AODD pumps offer several advantages, including:
Versatility: AODD pumps can handle a wide range of fluids, including corrosive chemicals, abrasive slurries, viscous materials, and even solids-laden liquids. They are suitable for various industries such as chemical, mining, wastewater, food and beverage, pharmaceutical, and many others.
Self-Priming and Dry Run Capabilities: AODD pumps are self-priming, meaning they can draw fluid into the pump without the need for external priming. Additionally, they can run dry without causing damage to the pump, which is beneficial in applications where fluid levels can fluctuate or where occasional dry-running may occur.