Our revolutionary PX® Pressure Exchanger® is recognized globally 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 an industry-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

$6.3B

Annual savings in energy costs for our customers

60%

Potential energy reduction in seawater reverse osmosis desalination facilities

41.4TWh

Amount of energy we helped our customers avoid expending in 2024

19.7MMT

Approximate amount of carbon emissions we helped our customers avoid in 2024

Upcoming Events

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Check out the latest information on our upcoming conferences, webinars, meetings, and other events.

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Desalination / Wastewater

WieTec 2025

Shanghai, China

Energy Recovery will be at WieTec in Shanghai from June 4-6, 2025. Wietec is China’s largest international…

CO2 Refrigeration

ATMOsphere America Summit

Atlanta, GA

ATMO America will bring together leading HVAC&R industry experts, policymakers, end users, and…

Recent News

Press Release

Energy Recovery Announces New Share Repurchase…

SAN LEANDRO, Calif. – Feb. 26, 2025 — Energy Recovery, Inc. (Nasdaq: ERII) today announced its Board of Directors approved a share repurchase program to purchase up to $30…

Press Release

Energy Recovery Appoints New CTO and…

SAN LEANDRO, Calif. – Feb. 26, 2025 — Energy Recovery, Inc. (Nasdaq: ERII) today announced the appointment of a new Chief Technology Officer and Vice President, Wastewater….

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