Industrial Pumps & Valves
Built for Process Reliability

An Air Operated Diaphragm Pump (AODD pump), also known as a pneumatic diaphragm pump, is a type of positive displacement pump that utilizes compressed air as its power source, distinguishing it from other pumps like hydraulic pumps or water pumps. It features a diaphragm driven by an air motor, which oscillates to create suction on one side and discharge on the other, enabling efficient fluid transfer. Unlike hydraulic pumps that rely on hydraulic fluid or water pumps designed for water priming, AODD pumps excel in handling diverse fluids without requiring self-priming in many cases.

The versatility of AODD pumps makes them a preferred industrial pump for various applications. They can manage abrasive, corrosive, and viscous materials, including sludges and slurry-like substances often handled by sewage pumps. Their spark-free operation ensures safety in hazardous environments, unlike some hydraulic pumps or pneumatic pumps that may pose risks.

AODD pumps are widely used in industries such as chemical, pharmaceutical, food and beverage, and water treatment, where they perform tasks like fluid transfer, metering, and pumping sewage or slurry. Their self-priming capability allows them to handle fluids without external water priming, enhancing operational efficiency.

Available types include single-acting, double-acting, and airless diaphragm pumps. Single-acting pumps use one air chamber, while double-acting pumps employ two chambers for smoother flow. Airless pumps, unlike typical AODD pumps, use a mechanical linkage instead of compressed air, offering an alternative to traditional pneumatic pumps.

Maintenance of AODD pumps is straightforward due to their minimal moving parts, requiring no lubrication unlike some hydraulic pumps. Regular inspection and replacement of worn components ensure optimal performance, making these industrial pumps a reliable choice for demanding applications.