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

Interested in meeting us?

Find an event

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

Find an event

CO2 Refrigeration

FMI Energy and Store Development…

Baltimore, USA

Energy Recovery will be at the Food Marketing Institute’s 2024 Energy and Store Development conference….

Desalination / Wastewater


New Orleans, USA

Energy Recovery will be at the Water Environment Federation’s Technical Exhibition and Conference…

CO2 Refrigeration


Nuremberg, Germany

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

Desalination / Wastewater

IFAT India

Mumbai, India

Meet our experts and learn about our industry-leading energy recovery devices at IFAT India 2024, Booth…

Desalination / Wastewater

International Water Conference (IWC)

Las Vegas, USA

Energy Recovery will have a vendor table in the exhibit hall of IWC 2024, where we will showcase our pressure…

Desalination / Wastewater

IDRA World Congress

Abu Dhabi, UAE

Energy Recovery will be at the International Desalination and Reuse Association (IDRA)’s 2024…

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…

View All News