PX technology

Our PX® Pressure Exchanger® is recognized around the world as a trusted, reliable, high-performing energy efficiency device.

Our PX technology uses a ceramic rotor to efficiently capture and transfer pressure energy. By making processes more efficient and environmentally sustainable, the PX can lower costs, save energy, and minimize emissions.

Our line of PX devices is able to handle liquid, gas, liquid with suspended solids, and supercritical fluids and is ideal for a wide range of pressure ratings from low to ultra-high.

The PX’s ceramic rotor acts as a fluid piston, efficiently transferring energy between high-pressure and low-pressure liquid and/or gas through continuously rotating ducts.

When the PX first entered the market over 30 years ago in desalination, it was a game-changing technology that made new treatment processes commercially viable. Today, many industries benefit from this technology, and we continue to explore new applications.

Our global reach


Annual savings in energy costs for our customers


Potential energy reduction in seawater reverse osmosis desalination facilities


Amount of energy we helped our customers avoid expending in 2023


Approximate amount of carbon emissions we helped our customers avoid in 2023

Upcoming Events

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Check out the latest information on upcoming conferences, webinars, meetings, and other events that we’re involved with.

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Desalination / Wastewater

Singapore International Water Week


Energy Recovery experts will be at Singapore International Water Week (SIWW) 2024. Booth B2-H28 will showcase…

CO2 Refrigeration


Nuremberg, Germany

Energy Recovery experts will be at Booth 7A-270, showcasing our PX G1300® pressure exchanger for CO2

Recent News

Press Release / CO2 Refrigeration

Energy Recovery Announces Appointments of CO2

Energy Recovery, Inc. (Nasdaq: ERII) today announced key hires in support of the company’s growth strategy with the appointment of Ricardo Freitas as Vice President and General…

Press Release / CO2 Refrigeration

Energy Recovery Appoints Refrigeration Leader Robert…

Energy Recovery, Inc. (NASDAQ: ERII), a trusted global leader in energy efficiency technology, today announced that refrigeration leader Robert DelVentura will serve as a special…

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