What are the Main Benefits of Air Operated Diaphragm Pumps?

Posted by Drn Industriel on December 5th, 2018

The Air Operated Double Diaphragm (AODD) are used in facilities of different varieties and sizes like the petrochemical industry and the food and beverages one. The design of ARO air operated diaphragm pumps is quite unique, which helps in transferring viscous and abrasive products from one place to the other.

The ARO Diaphragm pump in Canada consists of two separate chambers that are alternately filled and discharged by the movement of flexible diaphragms. Compressed air is fed to, and vented from, the air chambers that are on the opposite sides of the diaphragm to create the pumping action.

What are the main benefits of ARO air operated diaphragm pumps?

The pumps are essentially leak-free. The only time that leakage could occur is when both the diaphragms fail. The general maintenance program suggests that the diaphragms should be replaced on a regular basis. The AODD pumps suffer less wear than that of the mechanically driven pumps. This is due to the benefit of pressure that is balanced by the compressed air supply.

AODD pumps are perfectly capable of handling high abrasive, viscious fluids, slurries or sledges. In addition to that, the gentle pumping action makes them perfect for shear-sensitive fluids. The internal clock usually uses a ball, a cone, or a seat/flap design. The ball valves provide a better seal and are less prone to wear out than the flap design. The flap-type valves are hinged, which means that long-term fatigue at the flexing point may occur.

The ball valves wear more evenly as they are free to roll and rotate during the operation. They can also settle in a different position each time. The pumps do not require any kind of lubrication or cooling, which means that the pump could run dry indefinitely without any damage.

The AODD pumps are also suitable to use when it comes to hazardous areas. This is because the compressed air could be used as the power source rather than the electricity. It is for the same reason that an AODD pump could be submerged in water without any problem, as long as the air vent is above the surface of the liquid.

The whole operation depends on the ready availability of the clean and compressed air. It is also restricted to pumping fluids that are below the available air pressure. The AODD pumps are reliable, robust, relatively low cost and even easy to maintain. They are general workhouse devices that are typically used for transferring applications in a wide variety of industries.

Author's Bio: The author is an avid writer and this article is about AOOD pumps.