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AODD Pumps

Need some advice? Our technical sales engineers are always on hand!

Air operated diaphragm pumps for any process

Castle Pumps have been supplying AODD pumps to the industrial market for over 15 years. Suitable for use in a wide range of industries, from food manufacturing to fuels to wastewater and chemicals, air operated diaphragm pumps are a truly versatile solution. Our range of AODD pumps are able to dry run without damage, have patented stall protection to limit downtime and worker intervention, and built with few parts compared to alternatives for simple maintenance. So, if you feel it's time to leave your engineers to do more value-adding tasks than running a pump, AODD pumps are the perfect solution for you.

Need a "Fit and Forget" pump solution?

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Benefits of our Air Operated Diaphragm Pumps

  • Runs for 50 million cycles before diaphragm maintenance and has a lot fewer internal parts (30 vs a typical 72).
  • Patented stall protection enables the pump to run under a pressure imbalance to reduce downtime and limit manual operation.
  • Every model undergoes a suction and operation test before dispatch for your confidence.
  • Dry runs without damage and self primes up to 6m.
  • Can handle up to 10mm solids and viscosity up to 50,000cP.
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Past AODD Pump Project

We’ve been supplying customers with dependable air operated diaphragm pumps for over 15 years.

Read our case study to find how we helped one of our clients, an industrial paint and powder coating manufacturer, that needed a pumping solution to reliably transfer a flammable oil and solvent mixture. With a cost-saving process and reliability being key, our AODD pump range known for its reliable performance and low-cost maintenance was carefully chosen.

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Air Operated Diaphragm Pump Guide

AODD pumps are a type of reciprocating positive displacement pump driven by compressed air rather than an electric motor. This pump design is made up of two chambers, each with their own inlet check valve, outlet check valve, and diaphragm; hence, they are also referred to as double diaphragm pumps. Due to their design benefits, AODD pumps are a popular pumping solution for many applications, including food, cosmetics, chemical transfer and fuel.

Want to find more information about how air operated diaphragm pumps work and what are their design benefits? Read our pump guide and learn everything you need to know about AODD pumps.

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Need help to select the right pump for your application? Contact us via or +44 (0) 1773 533 283; our technical sales engineers have extensive product knowledge and will be able to help you.

Castle Pumps are fully accredited to enable you to buy with confidence. Our accreditation includes: Our accreditation A division of the CTS Group, Part of Flow Max Ltd.