PX® Pressure Exchanger®
Best-in-class Energy Recovery and Desalination
Our award-winning 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 highly engineered alumina ceramic, the PX stands up to the harshest of environments resulting in an unmatched life cycle cost advantage.
Efficiency
Designed for maximum efficiency, the PX consumes no electrical power, enabling SWRO facilities to reduce their energy consumption by as much as 60%.
Performance
With no scheduled maintenance and proven performance for the long run, our PXs offer unbeatably low life cycle costs.
Flexibility
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:
The PX Q Series is the gold standard in energy recovery devices. It includes the PX Q400, PX Q300, PX Q260, PX Q220, PX Q180, and PX Q140.
Quiet operation
PX Q devices offer operational sound levels below 79 decibels—comparable to a home vacuum cleaner—to enhance the safety of SWRO plant working environments through reduced audio levels.
Productive
PX Q devices provide reduction in fluid mixing, resulting in lower membrane feed salinity and pressure, and higher desalination system performance.
Scalable
Up to 40 parallel PX Q devices have been successfully installed in a single train, with 10 to 16 PXs commonly installed in parallel.
Efficient
PX Q devices perform with unparalleled efficiency—up to 98%.
The PX S series includes the following models: PX 90, PX 70, PX 45, and PX 30.
Flexibly-sized
PX S devices are designed to meet the needs of small to medium-sized plants.
Modular Design
PX S devices can be installed in parallel according to specific plant needs.
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
Resilient
No scheduled maintenance
Supported
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 Model | Flow Range per Unit (brine-flow) | Quiet Operation |
| PX Q400 | 65.9 – 90.9 m3/h | |
| PX Q300 | 45.4 – 68.1 m3/h | |
| PX Q260 | 40.9 – 59.1 m3/h | |
| PX 260 | 40.9 – 59.1 m3/h | |
| PX Q220 | 31.8 – 50.0 m3/h | |
| PX 220 | 31.8 – 50.0 m3/h | |
| PX Q180 | 22.7 – 40.9 m3/h | |
| PX 180 | 22.7 – 40.9 m3/h | |
| PX Q140 | 20.4 – 31.8 m3/h | |
| PX 140 | 20.4 – 31.8 m3/h | |
| PX 90 | 13.6 – 20.4 m3/h | |
| PX 70 | 9.1 – 15.9 m3/h | |
| PX 45 | 6.8 – 10.2 m3/h | |
| PX 30 | 4.5 – 6.8 m3/h |
Contact us to discuss which PX is right for you.
Desalination
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.
Industrial 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.
