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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This diaphragm causes a press stroke moving liquid out of the pump.

Diaphragm pump – Wikipedia

What is an Air Valve? Food and beverages Pharmaceutical Mining and construction Printing, paint and ink Waste water Petrochemical AODD pumps are self-priming and therefore have good suction capabilities, as well as being able to dry aoed without doing any damage to the pump making them useful for batch operations in industry.

AOD pumps pumpps a type of reciprocating diaphragm pump which contains two diaphragms driven by compressed air. We welcome the opportunity to earn your business. At the same time diaphragm number two is performing a suction stroke. Doing so, diaphragm number one is pulled toward the center block. Center port diaphragm pumps have the suction side and discharge side orientated towards the front or back centered between the two ends of the pump. This is all backed by the lowest cost of ownership in the industry.

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Aidd pressurised air forces Diaphragm B away from the center while pulling Diaphragm A toward the center via the common shaft. In pump chamber number two the discharge ball valve is pushed off its seat.


Air operated double diaphragm pumps are able to benefit pumpa variable flow or pressures just by adjusting the air supply. This page was last edited on 21 Novemberat Atmospheric pressure pushes the liquid to the suction side.

From Wikipedia, the free encyclopedia. Castle Pumps are fully accredited to enable you to buy with confidence.

Unsourced material may be challenged and removed. Graco Husky Explanation Cross Section. Also known as air-operated double diaphragm pumps, they are used for endless applications in mining, industrial and general plant service.

Views Read Edit View history. These diaphragms upmps connected by a shaft in the center section. This article needs additional citations for verification. This action is similar to that of the cylinder in an internal combustion engine. Refine your results by: Terms of Use Privacy Policy Sitemap. This allows the fluid to flow along the ball valve into the liquid chamber.

This constitutes one complete pumping cycle. The air behind diaphragm number two is being pushed out to the atmosphere. Yamada remains dedicated to the continuous development of the most complete line of air operated diaphragm pumps available today. These same hydraulic forces lift the discharge valve ball off its aodv in Chamber B, while the opposite discharge valve ball in Chamber A is forced onto its seat, forcing fluid aocd flow through the pump discharge.

Diaphragm pump

Figure 1 The air valve directs pressurised air to the backside of Diaphragm A, pushing it away from the center of the pump. Call Us sales castlepumps.

This allows them to be used without added lubrication in contact with the air, so the compressed air produced can be guaranteed clean. As the compressed air moves Diaphragm A away from the center of the pump into its discharge stroke, the pressure created within Chamber A pushes out the liquid through its discharge valve. A diaphragm pump also known as a Membrane pump is a positive displacement pump that uses a aord of the reciprocating action of a rubberthermoplastic or teflon diaphragm and suitable valves on either side of the diaphragm check valvebutterfly valves, flap valves, or any other form of shut-off valves to pump a fluid.


Go to the Verderair product pages. 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 compressed air oadd diaphragm number two away from the center block.

Double Diaphragm Pump Supplier | Yamada Pump

Head 8 bar Max. An air operated double diaphragm pump has two diaphragms. As the pump reaches its original starting point, each diaphragm has gone through one exhaust and one discharge stroke.

Yamada holds three patents on its field proven valve and enjoys a superior reputation throughout the industry. 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.

Talk to us today: In this post, we will explore the operation principle of AODD pumps. 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].

This way, diaphragm number one moves away from the center section. If you are unable to find the product that you are looking for then punps contact us via sales castlepumps.