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Air Operated Diaphragm (AODD) pumps made of stainless steel are dependable and adaptable workhorse devices that are frequently utilized in transfer applications. Because the SS316 Air Operated Double Diaphragm Pumps can lift liquids from up to 8 meters of negative suction, they are very useful for emptying barrels, drums, and tanks. These pumps work effectively with a wide range of chemicals and fluids of any viscosity.
Because they can operate continuously around-the-clock, SS316 AODD Pumps are notable for their robustness. They are a sensible option for many industrial applications since they are also affordable, dependable, able to run dry, and able to handle polluted or unclean liquids.
Air Operated Diaphragm Pumps (AODD Pumps) are self-priming, multipurpose pumps that run on compressed air. They are perfect for the safe and effective transfer of chemicals, solvents, viscous liquids, slurries, and corrosive fluids.
Positive displacement pumps that run on compressed air rather than electricity are known as Air Operated Double Diaphragm (AODD) pumps. They provide smooth and dependable pumping by using two flexible diaphragms that alternately draw and discharge fluid.
Important Features:
Powered by compressed air
Self-priming and capable of drying out
Ideal for abrasive, viscous, and corrosive liquids
The pump doesn’t need an electrical motor.
able to work with liquids that contain suspended solids
offered in materials like PTFE, PVDF, PP, and SS
Air Operated Diaphragm pumps made of stainless steel (SS 316) are frequently used to transfer liquids when durability, corrosion resistance, and dependable pneumatic operation are necessary.
Typical uses consist of:
Chemical industries – transfer of chemicals, solvents and process liquids
Pharmaceutical industries – handling compatible process and cleaning fluids
Food & beverage industries – transfer of suitable liquids where stainless-steel construction is required
Paints & coatings – handling paints, inks, resins and viscous fluids
Oil & lubricants – transfer of oils and industrial fluids
Electroplating & surface treatment – chemical transfer and circulation
Water & wastewater treatment – handling various industrial liquids and slurries
Industrial manufacturing – dosing, transfer and process-fluid applications
The alternating and repetitive back-and-forth movement (strokes) of two flexible membranes or diaphragms positioned on a shared shaft moves fluid in an Air Operated Diaphragm Pump. Although Diaphragm Pumps may be directly operated by connecting the shaft to a motor, an AODD Pump employs compressed air and a complex distribution system that alternately directs the air to two air chambers A and B on opposite sides of the diaphragms.
Air is sent to air chamber A by the compressed air control system.
The shaft travels to the left, and the diaphragms move to the right, increasing the volume of pumping chamber B while decreasing the volume of pumping chamber A. Fluid passage through the pump is only allowed in one direction: from intake to discharge, thanks to valves on each side of the pumping chambers. The result is that fluid is drawn into chamber B from the intake and discharged from chamber A.
The air distribution system vents air chamber A and sends compressed air to air chamber B when the shaft completes its stroke.
The shaft now advances to the right, lowering the capacity of pumping chamber B while simultaneously increasing pumping chamber A. The fluid in chamber B is now released and pulled into chamber A.
The air distribution system vents air chamber B when the shaft completes its stroke, and the cycle begins again when compressed air is delivered to air chamber A.
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