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Wilden

In 1955, Jim Wilden revolutionized the pumping industry when he invented the air-operated double-diaphragm (aodd) pump.

Since that time, Wilden® Pump & Engineering Company has forged a long-lasting legacy as the global leader in AODD pump technology. Thanks to a dedication to pioneering new innovations while providing unparalleled excellence in customer satisfaction, our family of AODD pumps is unmatched in reliability, durability, efficiency, and performance.

Overview, Industries and Applications

The Wilden pump range can be found successfully operating in various market and industry segments. Wilden is a world leader in AODD pumping technology and innovation constantly pushing the boundaries of what is possible with air-operated pumps.

Common Industries and applications include:

The Wilden® Pro-Flo® SHIFT (PS) is the industry’s premier air distribution system (ADS) and your ideal solution to increase productivity, lower energy consumption, reduce air consumption and simplify maintenance. With design benefits unmatched by any other ADS on the market, the innovative, yet simple PS features an air control spool that automatically optimizes air consumption and eliminates overfilling of the air chamber with no reduction in flow rate.

This design conserves energy while maximizing mean time between repair (MTBR) for your air-operated double-diaphragm (AODD) pump. Ideally suited for a wide variety of industrial applications, the PS is your go-to solution to maximize productivity and lower costs.

Pro-Flo® SHIFT Design

A new generation of air distribution systems (ADS) has been designed to eliminate overfilling in AODD pump operation. One such ADS is the Wilden Pro-Flo® SHIFT, which restricts the airflow into the air chamber near the end of each pump stroke so that only enough air is introduced to keep the pumping process going. This is accomplished through the incorporation of an air control spool that automatically optimizes air consumption and eliminates overfilling of the air chamber with no reduction in flow rate.

Features and benefits of the Pro-Flo SHIFT ADS include:

  • Up to 60% in air savings all while retaining existing flow rates
  • Reduced total cost of ownership
  • Designed off the same basic design principles as the tried and true Pro-Flo Series:
    • Unbalanced spool preventing stalling
    • Simple pilot spool to trigger which air chamber is filled
    • Minimum moving parts (less wear)
    • Tight tolerances to eliminate lost air
  • Ease of maintenance
  • Ability to be used in harsh operating environments
  • No electricity required

Thanks to the incorporation of the Pro-Flo SHIFT ADS, Wilden PS Series pumps have some of the highest flow rates in the industry while costing less to operate.

Features and benefits of Pro-Flo include:

  • Proven design for more than 20 years
  • Ultra-reliable
  • Has only three moving parts, meaning less downtime and simplified maintenance
  • Features plug-and-play operation
  • Mechanically actuated, no electronic parts, submersible, no additional configuration or complicated curves

Wilden Pump Range

Saniflo™ Hygienic™ Series (HS) Pumps

Wilden® Saniflo™ Hygienic™ Series Pumps for Hygienic and Sanitary Applications

Saniflo™ Hygienic™ Series (HS) Pumps are uniquely designed for high-cleanliness requirements and feature a free-draining flow path that enables clean-in-place (CIP) capability. The HS flow-through liquid-path design also eliminates any potential areas where product residue can be trapped and contaminate the product.

Find out more about Wilden® Saniflo™ Hygienic™ Series Pumps >>

Saniflo™ FDA Series Pumps

Wilden® Saniflo™ FDA Series Pumps for Hygienic and Sanitary Applications

The Saniflo™ FDA Series pumps are designed for standard food applications that don’t require the Hygienic™ Series (HS) design or clean-in-place (CIP) capability. They are well suited for sanitary applications moving high-acid, high-sugar and high-fat media. With simple installation and robust design, FDA pumps comply with FDA, CE, EC 1935/2004 and ATEX requirements.

Find out more about Wilden® Saniflo™ FDA Series Pumps >>

Accu-Flo™ Series Pumps

Wilden® Accu-Flo™ Series Pumps for Electronic Control Applications

Accu-Flo™ Series Air-Operated Double-Diaphragm (AODD) Pumps give you the critical external pump control necessary for exacting applications such as batching. Featuring a direct electrical interface that utilizes electrical impulses to stroke the pump instead of differential pressure, the Accu-Flo Series provides a variable stroke rate that you can easily control as needed.

Find out more about Wilden® Accu-Flo™ Series Pumps >>

Turbo-Flo™ Series Pumps

Wilden® Turbo-Flo™ Series Pumps for Utility Applications

Famous for its long life and easy serviceability, the durable Wilden® Turbo-Flo™ Series is the first air distribution system (ADS) that originated in the air-operated double-diaphragm (AODD) pump industry. Though enhancements have been made, these pumps work well in certain applications where the quality of compressed air is a concern.

Find out more about Wilden® Turbo-Flo™ Series Pumps >>

High-Pressure Series Pumps

Wilden® High-Pressure Series Pumps for High-Pressure Applications

Wilden® High-Pressure Series Air-Operated Double-Diaphragm (AODD) Metal Pumps are equipped with a specialty air distribution system (ADS) that utilizes a double-acting power piston and Duplex technology to intensify fluid discharge pressure. Wilden high-pressure pumps reliably deliver the pressure performance of up to 20.7 bar (300 psi), making them perfect for a wide variety of high-pressure duties, including filtration, chemical sludge transfer and other viscous, solid-laden slurries.

Find out more about Wilden® High-Pressure Series Pumps >>

Stallion® Series Pumps

Wilden® Stallion® Series Pumps for Mining Applications

Wilden® Stallion® Series Air-Operated Double-Diaphragm (AODD) Pumps are ideally suited for rugged mining applications thanks to their unique ability to handle solid-laden mining slurries with ease. Furthering the Stallion Series pump’s ability to handle the toughest mining applications is a robust design featuring a large internal clearance and flow-through path for the large-solids passage that prevents the pump from clogging. The Stallion Series is also designed with a polyurethane screen base at its inlet to provide additional durability.

Find out more about Wilden® Stallion® Series Pumps >>

Brahma™ Series Pumps

Wilden® Brahma™ Series for Large Solids-Handling Applications

Legendary Wilden® and Brahma™ Series Air-Operated Double-Diaphragm (AODD) Pumps transfer solid-laden slurries safely and effectively. The Brahma Series utilizes a unique top inlet, bottom discharge orientation and flap valves to allow passage of large-size solids and avoid damage from product entrapment and settling of solids in intermittent-duty applications.

Find out more about Wilden® Brahma™ Series Pumps >>

GPS Series Pumps

Wilden® GPS Series CSA-Certified Pumps for Natural Gas-Operated Applications

Wilden® GPS Series pumps, equipped with the Pro-Flo® SHIFT Air Distribution System (ADS) and available in bolted metal construction, are certified by the Canadian Standards Association (CSA) to be powered by natural gas and maintain a safe, reliable operation. They are perfect for oil and gas operations where compressed air is not readily accessible but where natural gas is plentiful.

Find out more about Wilden® GPS Series Pumps >>

UL Series Pumps

Wilden® UL-Certified Pumps for Fuel Transfer Applications

Wilden® pumps that have been certified to UL 79 standards to meet requirements for fuel transfer applications. Wilden UL-certified pumps can be used when dispensing gas products, fuels, petroleum or any other lubricating application.

Find out more about Wilden® UL-Certified Pumps >>

Velocity Series Pumps

Wilden® Velocity Series Pumps for Skids, Systems and Dosing Applications

The Wilden® Velocity Series compact air-operated double-diaphragm (AODD) pump was designed with versatility. Featuring a unique detachable mounting foot, Velocity Series pumps can easily be reoriented into a vertical or horizontal position with multiple inlet and discharge port options, a critical consideration for systems and skids. The Velocity Series also features a bore-seal design to eliminate the effects of torque decay and has a dry suction lift capability up to 5.1 m (16.9’) for better priming under a wide variety of system conditions.

Find out more about Wilden® Velocity Series Pumps >>

The Wilden® SafeGuard™ is the industry’s first AODD Internet of Things (IoT) enabled remote performance monitoring and alert solution. It is a true game-changer in optimizing AODD pump performance, reliability, cost of operation and maintenance. SafeGuard is an all-inclusive monitoring system that tracks, records and alerts customers to key AODD pump performance indicators at all times of operation via continuous Cloud connectivity as a way to address and prevent operational shortcomings that can result in costly pump failures.

Wilden Safeguard Monitoring

Why Wilden SafeGuard?

Why is pump monitoring so important?

Unexpected pump failures can be devastating for an operation and could result in much larger issues, including the high cost of downtime, repairs, lost product and product cleanup. This makes monitoring and anticipating potential AODD failure conditions a critical consideration for facility operators.

How It Works

Wilden SafeGuard is designed to monitor Wilden AODD pumps’ health and performance. It is composed of a single battery-powered sensor (Edge Device) mounted directly onto the pump which communicates to a sensor reader (Gateway Node). The Gateway Node, which can connect up to 10 Edge Devices/Pumps, operates as an encryption router, securely transmitting the data from all pumps to the Cloud. Once stored on the Cloud, real-time and historic operational information can be accessed by the user anywhere in the world through a secure smartphone app or an online portal.

Features and Benefits

The design and operation of the SafeGuard system allows for complete 24/7 real-time monitoring and alerts related to a number of critical performance parameters for the pump (diaphragms, balls, seats). These readings can show the user such things as:

  • Leak detection to indicate diaphragm leaks and failures, preventing product loss and safety hazards
  • Stroke rates to monitor changes to highlight performance abnormalities
  • Stroke count for batching and setting maintenance schedules
  • Real-time alerts via SMS or email to indicate any noteworthy change in operation that may be a precursor to pump or component failure
  • Plug-and-play design for easy setup and easily retrofittable to current installations
  • Maintenance records that can indicate patterns and help manage preventative maintenance plans

User Interface

Wilden AODD pumps’ health and performance is displayed and summarized on the Wilden SafeGuard User Interface service where you can view the status of your whole fleet of connected pumps down to the details of a single pump. Capabilities include:

  • Fleet Management View
  • Pump Dashboard
  • Review Maintenance and Operation History
  • Color Code Indicators of Status
  • Customizable Parameters, Pump Naming, Users, and Alerts

Solutions Delivered

Dowdens has been a trusted provider of Winden Air Operated Double Diaphragm (AODD) pumping solutions for many years, helping various industries efficiently manage their fluid transfer needs. With a strong commitment to quality and reliability, Dowdens offers a comprehensive range of AODD pumps that are designed to handle challenging applications across sectors such as water treatment, chemical processing, and mining.

Our expertise in pump technology, combined with exceptional customer support, ensures that clients receive tailored solutions that enhance productivity and minimize downtime. By continually adapting to the latest industry advancements and customer feedback, Dowdens remains at the forefront of pumping innovation, delivering solutions that stand the test of time.

Featured Products

Elegant simplicity with robust and reliable performance

As the industry’s workhorse, the time-tested Pro-Flo® Series combines elegant simplicity with robust and reliable performance that end-users have come to depend on for more than 20 years.

SKU: P.025-ALM-NPT

Wilden P.025 AODD Pump, 6mm Pro-Flo, Clamped Aluminum, NPT

SKU: P1-ALM-NPT

Wilden P1 AODD Pump, 13mm Pro-Flo, Clamped Aluminium, NPT

SKU: P100-PP-NPT

Wilden P100 AODD Pump, 13mm Pro-Flo, Bolted Polypropylene, NPT

SKU: P2-ALM-NPT

Wilden P2 AODD Pump, 25mm Pro-Flo, Clamped Aluminium, NPT

SKU: P200-PP-ANSI

Wilden P200 AODD Pump, 25mm Pro-Flo, Bolted Polypropylene, ANSI

SKU: P220-ALM-NPT-BUNA

Wilden P220 AODD Pump, 25mm Pro-Flo, Bolted Aluminum, NPT w/ Buna

SKU: P230-SS-ANSI

Wilden P230 AODD Pump, 25mm Pro-Flo, Bolted Stainless Steel, ANSI

SKU: P4-PP-ANSI

Wilden P4 AODD Pump, 38mm Pro-Flo, Clamped Polypropylene, ANSI

SKU: P8-PP-ANSI

Wilden P8 AODD Pump, 51mm Pro-Flo, Bolted Polypropylene, ANSI

SKU: P820-DI-NPT

Wilden P820 AODD Pump, 51mm Pro-Flo, Bolted Ductile Iron, NPT

SKU: PS1-ALM-NPT

Wilden PS1 AODD Pump, 13mm Pro-Flo Shift, Clamped Aluminium, NPT

SKU: P420-SS-THREADED

Wilden P420 AODD Pump, 38mm Pro-Flo, Treaded Stainless Steel, NPT

Featured Knowledge Base Articles

Our Knowledge Base is a comprehensive resource designed to empower users with valuable insights into pumping, irrigation, and water treatment systems. It features a diverse range of articles, including informational guides, how-to instructions, troubleshooting tips, and FAQs, catering to beginners and experienced users.

Whether you want to understand industry trends, optimize system performance, or resolve common issues, the Knowledge Base offers step-by-step guidance and expert advice. Its focus is on self-service support, enabling you to make informed decisions and confidently manage systems while providing access to personalised assistance.

KBA-9

A Comprehensive Guide to Bore Pump Selection

KBA-14

Pressure Pump Sizing Guide: Everything you need to know to correctly size a pump

KBA-1

10 Ways To Murder Your Pump

KBA-13

Irrigation Pump Maintenance Tips For Optimal Pump Performance

Featured Applications

Wilden Pumps are versatile and reliable air-operated double-diaphragm (AODD) solutions suitable for a wide range of industries and applications. They excel in general industrial processes, oil and gas operations, chemical processing, water and wastewater management, and mining.

Additionally, specialised models cater to hygienic and sanitary needs in food, beverage, and pharmaceutical industries, high-pressure tasks like filtration and sludge transfer, and rugged mining applications involving solid-laden slurries.

With options for natural gas-powered operations, fuel transfer, and compact systems for skids and dosing, Wilden Pumps are designed to handle challenging environments while ensuring efficiency, durability, and compliance with industry standards.

Chemical Processing, Filtration & Dosing Pumps

Dewatering Pumps

Groundwater

Featured Industries

Wilden pumps excel across a wide range of industries, including general industrial, oil & gas, paints & coatings, chemical processing, water & wastewater, and mining. Designed with innovative Pro-Flo SHIFT technology, these air-operated pumps optimise energy use, reduce air consumption, and enhance productivity, setting a new standard for efficiency. Their versatility and durability make them the ideal choice for tackling demanding applications in diverse operational environments.

Chemical Processing

Manufacturing

Mining , Oil & Gas

Water & Wastewater

Featured Documents

Discover the exceptional capabilities of Wilden pumps by exploring their comprehensive brochure. Learn about their innovative Pro-Flo SHIFT technology, designed to boost energy efficiency, minimise maintenance, and optimise performance across industries such as mining, chemical processing, and water treatment. From hygienic to high-pressure and rugged applications, the brochure provides detailed insights into Wilden’s advanced pump range, helping you find the perfect solution for any operational need.

Featured Videos

As the industry’s workhorse, the time-tested Pro-Flo® Series combines elegant simplicity with robust and reliable performance that end end-users come to depend on for more than 20 years. With its wide range of sizes and material offerings, end users count on the Pro-Flo Series to deliver the consistent performance promised for challenging applications.

Ideally suited for industrial applications calling for a durable chemical pump or oil pump, the Pro-Flo Series utilizes a simplified air distribution system (ADS) technology with only three moving parts, enabling it to be simple to operate and efficient with an easy-to-repair design. Featuring a plastic center block and lube-free operation, the Pro-Flo Series provides you with the flexibility and reliability you need for your application.

Featured Case Studies

Explore Dowdens Pumping & Water Treatment’s expertise through our extensive case study portfolio. Discover our innovative solutions, designed to deliver outstanding results for clients across various industries.

CS-23 – December 2013

Oil and Diesel Fuel Pump Set

CS-60 – June 2016

Modular Underground Dewatering System

CS-73 – February 2013

Mine Site Environmental Sump Pump Installation

CS-64 – February 2016

Specialised Pontoon Pumping System

Featured News

Discover new solutions changing the industry with advanced technology designed to improve efficiency, productivity, and sustainability. See how Dowdens’ expertise enhances projects from start to finish, providing valuable insights into new solutions and ways to tackle challenges.

WNA-49 – July 2025

New Grundfos SMART Digital DDA-C dosing pumps

WNA-48 – July 2025

ATS 2000 Pneumatic Pumps Drive Over Test

WNA-47 – June 2025

Major Announcement for the Australian Pumping Industry

WNA-46 – May 2025

Dowdens Secures Exclusive Australian Distribution for Innovative Mudwizard Sludge Treatment System

Are you Interested in Wilden Pumps?

The Dowdens Team are ready to help. Contact us today for more information and to start the conversation.

Our Locations

Dowdens has four convenient locations throughout Queensland. We have branches in Mackay and Proserpine in the north, servicing the Sugar and Coal industries, a centrally located branch in Rockhampton, specialising in the Agricultural and Coal industries, and a branch in Brisbane, servicing multiple industries in southeast Queensland.

Click on the Google Map pins below to learn more about the Branch closest to you and its capabilities.

Dowdens Mackay

Dowdens Brisbane

Dowdens Rockhampton

Dowdens Proserpine

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