Aluminum AODD Pumps | Air Operated Diaphragm Pumps

Properties:

Lightweight construction with good mechanical strength for general industrial fluid transfer

Uses:

Aluminum air operated double diaphragm pumps are widely used for transferring paints, coatings, inks, oils, adhesives, sealants, resins, ceramic slurry, wastewater and other general industrial fluids. Their lightweight construction makes them easier to install, move and maintain than many heavier metal pump designs, while still providing the mechanical strength required for demanding production environments. Typical applications include drum unloading, tank transfer, mixer feeding, circulation, filtration systems, packaging machinery, spray equipment, wastewater handling and production-line fluid transfer. Aluminum AODD pumps can also be used in portable pumping systems and installations where reduced equipment weight is important. Because they are powered by compressed air, they provide adjustable flow and pressure without requiring a conventional electric motor at the pump. OVELL aluminum diaphragm pumps are available in sizes from 1/2 inch to 3 inches to support different flow requirements. Smaller pumps are suitable for dosing, container transfer and compact equipment, while larger models can be selected for bulk transfer, high-volume circulation and process applications. The correct pump size should be selected according to the required flow rate, discharge pressure, suction conditions, pipe length, fluid viscosity and solids content. Diaphragm, valve ball and valve seat materials must be selected according to the transferred fluid. Available material combinations can support oils, solvents, coatings, adhesives and many other industrial liquids. Chemical compatibility should always be confirmed before operation because aluminum is not suitable for every corrosive fluid. For highly aggressive acids, strong alkalis or applications requiring increased corrosion resistance, a plastic, PVDF or stainless steel pump may be more appropriate. Air operated double diaphragm pumps offer several useful operating characteristics. They are self-priming, can handle variable flow conditions and can transfer many viscous or solids-containing fluids. Flow can be adjusted through the air supply, and the pump can stall against a closed discharge without the same operating principle as a centrifugal pump. Installation of a filter regulator, suitable air valve and correctly sized piping helps maintain stable performance and reduce unnecessary air consumption. For reliable operation, the suction line should be kept as short and direct as practical. Pipework must be properly supported so that excessive load is not transferred to the pump connections. Before startup, confirm that all fasteners and fluid connections are secure. Operators should also check air quality, system pressure and grounding requirements according to the application and local safety procedures. Routine maintenance includes inspecting diaphragms, valve balls, valve seats, O-rings and air-valve components for wear or chemical attack. Maintenance frequency depends on operating hours, cycle rate, fluid abrasiveness and chemical compatibility. Replacing worn parts before failure can help reduce leakage, unplanned downtime and damage to surrounding equipment. OVELL offers aluminum AODD pumps for general industry, paints and coatings, adhesives, oil transfer, wastewater treatment, ceramics, packaging and other fluid-handling applications. Contact OVELL Pump with information about the fluid, viscosity, temperature, required flow rate, discharge pressure and connection size. Our technical team can help select a suitable pump size and wetted-material configuration for your process.