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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Atmospheric pressure pushes the liquid to the suction side.

Why AODD? | Versa-Matic

Double Diaphragm Pumps Yamada Manufacturers air-powered double diaphragm aodd pumps. They pumpa not leak, offer little friction, and can be constructed for low pressure sensitivity. Graco Husky Explanation Air Valve. Go to the Verderair product pages. The air behind diaphragm number two is being pushed out to the atmosphere.

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Operation Principles of AODD Pump | All Pumps

With the right material consideration, diaphragms can seal over a wide range of pressures and temperatures without needing lubrication or maintenance. In this post, we will explore the operation principle of AODD pumps.

Head 8 bar Max. Live Support Distributor Login This way, diaphragm number one moves away from the center section. As an ISO certified company, our engineering intellect and manufacturing processes are second to none. Retrieved from ” https: These diaphragms are connected by a shaft in the ppumps section.


An elastomeric diaphragm can be used as a versatile dynamic seal that removes many of the limitations found with other sealing methods. This allows them to be used without added lubrication in contact with the air, so the compressed air produced can be guaranteed clean.

Views Read Edit View history. The internal mechanisms of a double diaphragm pump can vary subtly between brands, however there is a common working principle applicable to all models. 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. This diaphragm causes a press stroke moving liquid out of the pump.

The diaphragms are working as separation wall between the air and the liquid. Unmatched in quality, durability and availability, there’s no question as to why more and more industries are coming to Yamada for their pumping needs. Select All Clear All.

Diaphragm pump

Castle Pumps are fully accredited to enable you to buy with confidence. If you are unable to find the product that you are looking for then please contact us via sales castlepumps.

Talk to us today: Head 70 M Max. What is an Air Valve?

Small mechanically activated diaphragm pumps are also used as air compressors and as a source of low-grade vacuum. This constitutes one complete pumping cycle.


Pimps article needs additional citations for verification. Diaphragm Pumps deliver a hermetic seal between the drive mechanism and the compression chamber, allowing the pump to transfer, compress, and evacuate the medium without a lubricant. The pump may take several cycles to completely prime depending on the conditions of the application. The air valve is located In the center section of the diaphragm pump.

The working principle of a Verderair double diaphragm pump. When the chamber pressure later increases from decreased volume the diaphragm moving downthe fluid previously drawn in is forced out. You may unsubscribe from these services at any time.

Operation Principles of AODD Pump

It is common for smaller sized AODs to be portable. 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.

Want to discuss your requirements? Figure 1 The air valve directs pressurised air to the backside of Diaphragm A, pushing it away from the center of the pump. Air operated double diaphragm pumps are able to benefit from variable flow or pressures just by adjusting the air supply. Don’t fill this field!