Air-operated Double-diaphragm Pumps Research Articles

Cost benefits and energy efficiencies of AODD pumps

Air Operated Double Diaphragm (AODD) pumps are an interesting seal-less, displacement alternative to centrifugal pumps. This article explains how they work, and how their low-maintenance application is proving cost-efficient for both businesses and the environment.

Keeping danger contained within indusrial processes

This article will illustrate how positive displacement solid-body plastic air-operated double-diaphragm pumps possess the design and construction features that are necessary to guarantee full containment of dangerous chemicals, while also offering working characteristics that enable the highest level of operational efficiency to be achieved.

Sticky problem solved with AODD pumps

For adhesive and sealant manufacturer SABA Dinxperlo BV, safety is paramount in the transfer of both raw materials and finished products that must not leak. Any pumps used must also offer low shear operation to prevent damage. The company found that Air-Operated Double-Diaphragm (AODD) pumps from Wilden fit the bill. This article investigates why the relationship between these businesses is so strong and what has gone into forming that bond.

Born to be Wilden – alter your view of AODD Pumps

Back in 1955 Jim Wilden was looking for a quick and easy way to pump water out of a flooded workshop. His solution led to the invention of the AODD pump and his legacy the Wilden Pump & Engineering Company. Now, writes Carl Glauber, a revolutionary air distribution system enables air-operated double diaphragm (AODD) pumps to set new standards in energy efficiency, as well as optimised production.

Plastic AOD pumps — a safe choice

In this article, Martijn Haan of Verder BV first considers the general construction and action of air operated double diaphragm (AOD) pumps, before discussing the particular advantages of plastic pumps for the safe handling of aggressive and toxic liquids.

Specifying air-operated double-diaphragm pumps

Air-operated, double-diaphragm pumps (AODDP) find themselves in a host of difficult pumping applications ranging from municipal sump pumping to high purity operations. They have become the cost effective choice of engineers, industry professionals, and maintenance personnel. This is attributed to inherent features which include: ease of maintenance, variable speed, variable pressure, ability of self-prime and run dry, dead-head capability to pass solids, and the absence of leak prone dynamic seals. Due to the ease of specifying an AODDP, it is easy to overlook a variety of considerations. Long term satisfaction and high return on investment can be assured if reasonable care is exercised throughout the specification process. This feature aims to offer some guidelines, and is followed by World Pumps' survey of the principle manufacturers.