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Wilden® Releases New 6 mm (1/4") Pro-Flo® SHIFT Series and 6 mm (1/4") Accu-Flo™ Series Bolted Plastic AODD Pumps

by PSG | Jul 31, 2023

Grand Terrace, CAJuly 31, 2023 Wilden®, a brand of PSG®, a Dover company, and a worldwide leader in specialty pumps, has extended its line of small air-operated double-diaphragm (AODD) pumps with the addition of the new 6 mm (1/4") Pro-Flo® SHIFT Series PS25 Bolted Plastic AODD Pump model and 6 mm (1/4") Accu-Flo™ Series A25PS Bolted Plastic Pump models.

The Pro-Flo SHIFT PS25 pump combines maximum performance and efficiency with superior containment. Featuring a bolted construction for improved flow rates and higher dry/wet suction lift capabilities, the Pro-Flo SHIFT PS25 is an ideal solution for all small-dosing applications. While the Accu-Flo A25PS pump offers the same benefits as the PS25 model, it features a direct electrical interface that utilizes electrical impulses to stroke the pump, providing a variable stroke rate that is easily set and controlled as needed.

The new pumps are available in a choice between two materials: polypropylene and PVDF. Polypropylene is a versatile material that can be used with a wide variety of chemicals. PVDF is a more specialized material that offers superior chemical resistance, temperature resistance and abrasion resistance. 

For the elastomer options, the pump offers PTFE, Wil-Flex™ (Santoprene®) and Geolast® to handle a variety of chemical applications. 

The PS25 and A25PS AODD pumps provide the reliability, performance and dependability required in challenging fluid-handling activities, making them an ideal solution for use in dosing and batching applications.

For more information about Wilden, please visit Wilden is a brand of PSG, a Dover company. For more information on PSG, please visit

About Wilden®:

Jim Wilden revolutionized the pumping industry when he invented the air-operated double-diaphragm (AODD) pump in 1955. Since that time, Wilden® has been at the forefront of bringing AODD technology into the future by building its extensive infrastructure, knowledge base and intellectual capital. Wilden offers a comprehensive line of safe, reliable and energy-efficient AODD pumps – including the Pro-Flo® SHIFT Series, Pro-Flo Series and Specialty Series – for critical pumping applications in the general industrial, paint and coatings, oil and gas, chemical process, water and wastewater, hygienic, mining, ceramics, and military and marine markets.

Wilden is a brand of PSG®, a Dover company. To learn more about Wilden, please visit

About PSG® PSG is the global pump, metering and dispensing-solution expert, enabling the safe and efficient transfer of critical and valuable fluids that require optimal performance and reliability in applications where it matters most. Additionally, PSG is a leading provider of flow meters designed to reduce waste and downtime while accurately measuring, monitoring and controlling the distribution of fluids. Headquartered in Oakbrook Terrace, IL, USA, PSG is comprised of several world-class brands, including Abaque®, All-Flo™, Almatec®, Blackmer®, Ebsray®, em-tec®, Griswold®, Hydro™, Malema™, Mouvex®, Neptune®, PSG® Biotech, Quantex™, Quattroflow®, and Wilden®. PSG products are manufactured on three continents – North America, Europe and Asia – in state-of-the-art facilities that practice lean manufacturing and are ISO-certified. PSG is part of the Pumps & Process Solutions segment of Dover Corporation.