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AODD Pumps

Comparing Different AODD Variants: The Proof is in the Pump

| Author / Editor: Carl Glauber; Ravi Prasad / Dominik Stephan

The race is on for AODD pumps to move volume faster and more cost effectively. In head-to-head comparisons with the competition, the Wilden Pro-Flo Shift Air Distribution System proved it is not just an incremental improvement in ADS technology, but an entirely new way of looking at how pneumatic pumps operate
The race is on for AODD pumps to move volume faster and more cost effectively. In head-to-head comparisons with the competition, the Wilden Pro-Flo Shift Air Distribution System proved it is not just an incremental improvement in ADS technology, but an entirely new way of looking at how pneumatic pumps operate (Picture: Pump Solutions Group)

The benefits of using air-operated double-diaphragm (AODD) pumps are not unheard of. However, figuring out which one in the market best suits your needs might be a cumbersome activity. This article presents the results of headto-head comparisons between the top AODD pumps and the final data acquired during those tests. The results will help illustrate the impact differing ADS technologies have on air consumption, energy use and overall flow rate.

Air-operated double-diaphragm (AODD) pumps have played a profound role in modern global manufacturing and fluidhandling operations of many companies for over 50 years. The original pump concept has changed little over the decades and works through its sheer simplicity of operation and construction.

With operating efficiency and cost reductions being a major focus of businesses today, AODD pump manufacturers have introduced new technologies in air distribution systems (ADS) to increase pump efficiency and meet these demands. The new ADS technologies utilized range from electronic controls to mechanical innovations. However, the resulting savings in compressed air usage and increase in pump efficiency varies considerably by system.

The Challenge: Energy Consumption

In AODD pump operations, energy used is directly related to the rate of consumption of air used to drive each stroke of the pump during the pumping cycle. With increasingly high energy costs, facility operators understand that the initial purchase and installation of a new pumping system is but a small part of the total cost of ownership and operation during the pump’s life cycle. Routine costs of energy and maintenance remain the primary cost drivers in the total cost of ownership.

Much like cars, pumps can be rated according to efficiency. The goal is to utilize the least amount of air to pump the greatest amount of product. The ultimate objective is to reduce the rate of air consumption in relation to the product flow rate while also minimizing the overall amount of air that is not producing product yield (wasted energy) during the pumping cycle. If attained, this combination will directly impact an operation’s bottom line — the profitability being determined by something as simple as the volume of air being consumed and the energy required to compress it.

Saving up to 60% of Pressurized Air with in AODD Pumps

Diaphragma Pumps

Saving up to 60% of Pressurized Air with in AODD Pumps

12/08/2014 - A workhorse takes the spotlight: AODD pumps perform reliably even in difficult conditions – But now, they can do even more: By significantly reducing the air consumption through a clever setup, pump manufacturer Wilden claims to have created a pump that needs 60% less pressurized air than common designs… read...

Don't Overfill: It's a Matter of Air Distribution

In addition to wasted energy, air overfilling stretches the diaphragm unnecessarily. This stretching produces excessive diaphragm wear and tear resulting in more frequent replacement and downtime, while also increasing operating costs.

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