PX® Pressure Exchanger®

Best-in-class Energy Recovery in Desalination and Wastewater Treatment

PX Pressure Exchanger for energy recovery

Our highly efficient PX® Pressure Exchanger® (PX) family of products provides unmatched energy recovery for seawater reverse osmosis (SWRO) desalination systems. Large and small desalination projects around the world rely on our range of PXs to achieve optimal operations and maximum energy savings. Designed with only one moving part using precision engineered alumina ceramic, the PX stands up to the harshest of environments resulting in an unmatched life cycle cost advantage.


Designed for maximum efficiency, the PX consumes no electrical power, enabling SWRO facilities to reduce their energy consumption by as much as 60%.


With no scheduled maintenance and proven performance for the long run, our PXs offer unbeatably low life cycle costs.


Our range of PX capacities provides flexibility to optimize train size to specific project requirements, making the PX the ideal solution for new installations and retrofits alike.

How the PX Pressure Exchanger Works

Consuming no electrical power and engineered with only one moving part made of highly durable and corrosion-resistant ceramic, learn how the PX Pressure Exchanger maximizes your facility’s uptime:

Low Pressure PX

The Low Pressure PX

The Low Pressure PX is ideal for potable, non-potable, agricultural, and industrial water reuse as it offers substantial energy savings and ease of integration resulting in reduced operational expenditures.

  • Industry-leading 99.8% uptime
  • Maintenance-free with a 25-year design life
  • Modular and scalable to any flow capacity
  • Isobaric device with wide operating range
  • High efficiency with flow and pressure variation
  • Short payback period:
  • More energy efficient design for low pressure
  • Potential to use in existing feed and booster pumps
Low Pressure RO energy recovery devices for potable water reuse
High Pressure PX

High Pressure PX

High Pressure PX products provide unmatched energy recovery for large and small seawater reverse osmosis (SWRO) desalination systems. High Pressure PX includes our gold standard PX Q series.

  • Designed for maximum efficiency
  • Consumes no electrical power
  • Allows SWRO facilities to reduce energy consumption by as much as 60%.
  • No scheduled maintenance
  • Proven performance means low life cycle costs.
  • Wide range of PX capacities provides flexibility to optimize train size to specific project requirements
  • Ideal solution for new installations and retrofits alike
Low Pressure PX
Ultra-high Pressure PX

Ultra High-Pressure PX

Our Ultra High-Pressure PX makes ultra high-pressure reverse osmosis (UHPRO) even more cost-competitive by reducing the energy waste in the process.

  • Industry-leading efficiency of up to 93%
  • Low operating cost makes for fast payback
  • Unparalleled reliability due to compact, modular, and scalable design
Ultra PX for Industrial Wastewater Treatment
On the left, SQRO Without Energy Recovery Devices (ERDs). On the right, SWRO with the PX Pressure Exchanger.

Historically, energy consumption and costs made SWRO uneconomical. With the PX Pressure Exchanger, up to 60% of that wasted energy can be recycled, driving substantial saving and emission reductions. In addition, the site and/or number of high pressure pumps can be decreased.

Long Lasting

Designed for a 25-year life cycle


No scheduled maintenance


Access to our support team of technical specialists to provide support at every phase of your project

Superior Precision and Durability

The PX cartridges have only one moving part and are made with high-purity aluminum oxide ceramic. They’re corrosion-proof and three times more abrasion-resistant than steel. All that adds up to unmatched durability.

We design and manufacture ceramic PX components in-house at our California headquarters. This allows us to control the precision and quality of our core components down to the micrometer level, ensuring every PX device performs with maximum efficiency, durability, and reliability.

PX ModelFlow Range per Unit (brine-flow)Quiet Operation
PX Q40065.9 – 90.9 m3/h
PX Q30045.4 – 68.1 m3/h
PX Q26040.9 – 59.1 m3/h
PX Q22031.8 – 50.0 m3/h
PX Q18022.7 – 40.9 m3/h
PX Q14020.4 – 31.8 m3/h
PX 9013.6 – 20.4 m3/h
PX 709.1 – 15.9 m3/h
PX 456.8 – 10.2 m3/h
PX 304.5 – 6.8 m3/h

Contact us to discuss which PX is right for you.

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The world’s need for clean water is intensifying, driven by population growth, industrialization, rapid urbanization, and climate change. According to United Nations estimates, global demand for water will surge 30% by 2050.

A breaking wave

Wastewater Treatment

Membrane technologies now offer an energy and cost-effective way to meet regulations requiring minimal liquid discharge (MLD) and zero liquid discharge (ZLD) for wastewater treatment. By employing energy recovery devices, those savings can be compounded while preserving system reliability and operability.

industrial wastewater treatment solutions for ZLD MLD energy recovery