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Case Studies

Wilden Air Operated Diaphragm Pumps are a real workhorse in the pumping world

July 31 2018

Air operated diaphragm pumps (also known as pneumatic diaphragm pumps, AODD pumps, AOD pumps) are used for endless applications in mining, industrial and general plant service.

Jim Wilden invented the first air-operated double-diaphragm pump in 1955, and are designed for demanding applications that require a robust design. They are extremely reliable, easy to maintain and offered in a variety of configurations and materials to meet your pumping needs. They are extremely reliable, easy to maintain and offered in a variety of configurations and materials.


Air Operated Double Diaphragm Pumps are often used where electricity isn’t available, or in explosive or flammable areas. They are also used for chemical transfer, de-watering underground coal mines, food manufacturing or where the liquid being pumped has a high solids content or high viscosity.

Allied Pumps was approached by Mundella Foods, a premier dairy company based in Western Australia as they were looking to reinvent an industrial filling system and outdated product line. In understanding their needs, Allied Pumps engineered and manufactured an innovative solution using a mobile Wilden Pumping Package. This entailed using Wilden’s premiere sanitary and biopharmaceutical pumps which utilised the latest in flow engineering and low air requirement. Perhaps more importantly, the pump was chosen because it was designed for delicate product handling with a soft pumping action which was essential to maintain quality of the finished product. Read more


Allied Pumps has the largest stock holdings of Wilden Pumps in Western Australia. We can supply:


The Pro-Flo® SHIFT is the new standard for Air Operated Diaphragm Pumps. The innovative, yet simple, Pro-Flo® SHIFT Air Distribution System (ADS) features an “air control spool” that automatically optimises air consumption and eliminates the overfilling that can lead to overcharging of the air chamber, all while causing no corresponding reduction in flow rate.

The Pro-Flo® SHIFT’s revolutionary ADS design meters the air flow, allowing for just enough air to keep the pumping process operational. The results are a reduction in air consumption and operational costs while maximum operational efficiency and volumetric consistency are maintained.

Key Features:

  • Achieves up to a 60% saving in air consumption over competitive AODD pump technologies
  • More yield per SCFM
  • Easy to Maintain (fewest ADS parts of any AODD pump competitor)
  • Fastest ROI, lowers operational cost and total cost of ownership
  • Mechanically actuated, no electronic parts, submersible, no additional configuration or complicated curves


The Wilden pumps Original Series Air Operated Diaphragm pump range was designed for rugged utilitarian type of applications that require a robust design. These pumps ensure reliability without sacrificing ease of maintenance.


Advanced™ FIT Air Operated Diaphragm Pumps offered by Wilden pumps precisely “FIT” bolt-to-bolt and pipe-to-pipe and are specifically designed for maximum performance, efficiency, and containment. The range can be fitted to existing fluid-handling piping systems to provide increased performance with no re-piping necessary. They have been engineered to be an easy, cost-effective way to enhance and upgrade existing pump performance.

Exact FIT from bolt-down footprint to inlet and discharge connection heights with re-engineered fluid path increases flow rates up to 54% versus current Wilden models. With fewer fasteners and easy accessibility with power tools for faster assembly/disassembly and shorter downtime, the latest in Advanced™ FIT technology results in a combination that delivers a complete, cutting-edge Air Operated Diaphragm Pumps-pump solution that is unmatched in the industry.


Available in three sizes and constructed of either aluminium or ductile iron materials, Wilden’s Stallion technology incorporates many revolutionary design concepts.

Key Features:

  • Flow rates and air consumption are managed with the turn of a dial
  • Fluids of high solid content are transferred effectively and efficiently
  • Submersible and intrinsically safe
  • Superior anti-freezing properties, and
  • Can handle pressures to 125 psi.

Allied Pumps is the sole authorised Wilden pump distributor for Western Australia. For more information and to discuss your pumping requirements, please contact us on 08 9350 1000 or email [email protected]

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