core technology
Our pressure exchanger technology is at the heart of many of our products and uses a ceramic rotor to efficiently capture and transfer pressure energy. When the PX® Pressure Exchanger® first entered the market over 30 years ago as an energy saving solution for the seawater reverse osmosis (SWRO) desalination industry, it was a game-changing technology that made the SWRO treatment process commercially viable. Today, many industries can benefit from using the PX to improve performance and environmental sustainability, lowering costs, saving energy, and minimizing emissions. This versatile technology is ideal for a wide range of pressure ratings (from low to ultra-high) and can handle both liquid and gas.

How it Works
01
Low-pressure seawater or wastewater enters the PX rotor duct and is sealed. The high-pressure reject brine from the membrane enters the PX from the opposite side.
The high-pressure brine rotates the duct, transferring hydraulic energy to the low-pressure seawater or wastewater. The high-pressure fluid in the duct is then sealed.
Both fluid streams exit the PX separately. The rotor duct charges and discharges as the pressure exchange repeats, fluctuating between sealed and pressure exchanger phases .
CONSTANTLY INNOVATING
Innovation and continuous improvement are at the core of our business, which began with the development of the PX® Pressure Exchanger® more than 30 years ago. Since then, the PX has become the gold standard energy recovery device (ERD) in desalination. From solutions in high-pressure to low-pressure environments, we continue to develop new products for unique applications with the goal of delivering solutions that our customers truly need.
PX Q650
Our most efficient, highest capacity PX for seawater reverse osmosis desalination facilities.
The PX Q650 is Energy Recovery’s highest capacity pressure exchanger, delivering best‑in‑class performance from our trusted PX® Pressure Exchanger® technology with up to 99% peak efficiency. Thanks to its high performance and low maintenance, the PX Q650 provides significant energy and cost savings and offers extremely low projected life cycle cost.
