Larger desalination Pressure Exchanger launched by ERI

The largest PX Pressure Exchanger to date was launched on 30 July 2009 by Energy Recovery Inc, the California-based manufacture of energy-recovery equipment for desalination plants.

The PX-300 dramatically reduces energy usage and associated costs for seawater desalination plants, handling flow rates of 300 gallons per minute (68 m³/h) per device. The modular, standardized design allows the PX-300 to be used in the world’s largest desalination plants.

Built on the same engineering principles as ERI’s standard PX product family – including the PX-220/260 – the PX-300 device is being marketed as a highly efficient, scalable solution for mid-size and large desalination plants that need premium performance in a larger device. In addition, the PX-300 features the latest side-port housing technology to provide better unit performance and enhanced corrosion resistance.

The PX-300 operates at up to 98% efficiency, and its performance will not decrease over time. The new product also achieves a significant reduction in mixing compared with the PX-220 and PX-260, enhancing desalination system performance and improving efficiency by reducing membrane feed pressure.

The overall footprint associated with installing a PX-300 is six times smaller than competing isobaric-device installations, saving valuable plant floor space. The PX-300 unit also weighs just over 80 kg and does not require any special foundation or other support structure, helping to minimize the overall footprint and installation cost of a desalination plant.

In most other features, the PX-300 resembles its predecessors. ERI stresses that this device is not the Titan unit previously announced. This is now in Beta testing and is “doing well” says the company.

For more information, contact:
Email: [email protected].