Since , our AODD pumps have provided customers with simple solutions for challenging applications. All-Flo’s pumps are made from the widest range of. AODD pumps, or air operated diaphragm pumps, are positive displacement pumps driven by compressed air rather than an electric motor. The AODD pump. Wilden Air-Operated Double-Diaphragm (AODD) pumps include Advanced Metal & Plastic; Original Metal & Plastic; Saniflo Hygienic; Brahma Flap Valve and.

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Split Manifold By utilizing one pump, Yamada Split Manifold Diaphragm Pump offers a design in which the inlet and outlet ports can be configured to multiple combinations; ideal for punps or combining two similar specific gravity fluids. The pump may take several cycles upmps completely prime depending on the conditions of the application. Get free pump tips and resources delivered directly to your inbox. At the completion of the stroke, the air valve again redirects air to the backside of Diaphragm A, which starts Diaphragm B on its exhaust stroke.

Pukps 1 Pumpss air valve directs pressurised air to the backside of Diaphragm A, pushing it away from the center of the pump. The compressed air pushes diaphragm number two away from the center block. AODD Pumps Air operated diaphragm pumps for all fluid types AODD pumps, or air operated diaphragm pumps, are positive displacement pumps driven by compressed air rather than an electric motor.

Doing so, diaphragm number one is pulled toward the center block. Live Support Distributor Login When the pressurised diaphragm, Diaphragm A, reaches the limit of its discharge stroke, the air valve redirects pressurised air to the backside of Diaphragm B. The air valve is located In the center section of the diaphragm pump. Food and beverages Pharmaceutical Mining and construction Printing, paint and pumls Waste water Petrochemical AODD pumps are self-priming and therefore have good suction capabilities, as well as being able to dry run without doing any damage to the pump making them useful for batch operations in industry.


An elastomeric diaphragm can be used as a versatile dynamic seal that removes many of the limitations found with other sealing methods. Aaodd page was last edited on 21 Novemberat With the right material consideration, diaphragms can seal over a wide range of pressures and temperatures without needing lubrication or maintenance. In pump chamber number one the opposite occurs.

Want to discuss your requirements? When the chamber pressure later increases from decreased volume the diaphragm moving downthe fluid previously drawn in is forced out.

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This allows them to be used without added lubrication in contact with the air, so the compressed air produced can be guaranteed clean.

Talk to us today: Also known as air-operated double diaphragm pumps, they are used for endless applications in mining, industrial and general plant service. Unsourced material may be challenged and removed. Compared to other compressors, these pumps are quiet, cheap and, most importantly, have no moving parts in the airstream. This is all backed by the lowest cost of ownership in the industry. Double Diaphragm Pumps Yamada Manufacturers air-powered double diaphragm aodd pumps.

As an ISO certified company, our engineering intellect and manufacturing processes are second to none. An air operated double diaphragm pump has two diaphragms. AODD pumps, or air operated diaphragm pumps, are positive displacement pumps driven by compressed air rather than an electric motor. Air Valve Technology Yamada air valve technology is the heart of the air-powered double diaphragm pump and determines reliability.

Diaphragm pump

When the volume of a chamber of either type of pump is increased the diaphragm moving upthe pressure decreases, and fluid is drawn into the chamber [3]. In pump chamber number two the discharge ball valve is pushed off its seat. Unmatched in quality, wodd and availability, there’s no question as to why more and more industries are coming to Yamada for their pumping needs.


Castle Pumps are fully accredited to enable you to buy with confidence. The diaphragms are working as separation wall between the air and the liquid. Air operated double diaphragm pumps are able to benefit from variable flow or pressures just by adjusting the air supply. Yamada holds three patents on its field proven valve and enjoys a superior reputation throughout the industry.

Working principle AODD pumps | Diaphragm Pump technology | Verderair

When the pressurized diaphragm number one has reached the end of its stroke, the movement of the air is switched from diaphragm number one to the back of diaphragm number two by the air valve.

It is common for smaller sized AODs to be portable. By using this site, you agree to the Terms of Use and Privacy Policy.

Head 8 bar Max. At the same time diaphragm number two is performing a suction stroke.

The working principle of a Verderair double diaphragm pump

Acting pups a separation membrane between the compressed air and liquid, the elastomeric diaphragm applies pressure to the liquid column, while also balancing the load in order to remove mechanical stress from the diaphragm.

They do not leak, offer little friction, and can be constructed for low pressure sensitivity. Don’t fill this field! Consent I agree to receive information from verderair. This action is similar to that of the cylinder in an internal combustion engine. Head 70 M Max. As the pump reaches its original starting point, each diaphragm has gone through one exhaust and one discharge stroke. The suction ball valve is being pushed away off its seat.