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Energy Recovery, Inc. (ERI®) is proud to announce the newest additions to the PX® Technology product line: the PX- 260 and the PX-30S.
The PX-260 is ERI's largest commercially available energy recovery device and the new flagship of the PX Pressure Exchanger® family of products. It handles brine flow rates of 50 to 59 m3/hr (220 to 260 gpm) - nearly 20% greater capacity than ERI's former largest device. Arrays of PX-260 devices serve reverse osmosis (RO) trains with permeate flows from 850 cubic meters per day (224 thousand US gallons) up to the largest being designed: 25,000 cubic meters per day (6.6 million US gallons) and more. Similar to PX-180 and PX-220 devices, the PX-260 is designed to provide up to 98% efficiency. However, with its higher device capacity, fewer units are needed on a manifold. The PX-260 has been successfully beta tested for over two years and is in full production.
The new PX-30S Pressure Exchanger device is ERI's smallest energy recovery unit, designed to handle brine flows from 4.5 to 6.8 m3/hr (20 to 30 gpm) for RO plants with permeate capacities of 100 to 360 cubic meters per day (26 to 95 thousand US gallons/day). It operates with efficiencies over 96% and with less than 3% mixing at the membrane feed. This performance is similar to larger PX devices, making the PX-30S ideal for pilot plants as well as mobile marine units. In addition, it contains new features that allow it to operate with relaxed process flow controls. The PX-30S is fully tested and in production.
Flow Capacity at a glance:
| Model |
Flow Capacity m3/hr (gpm) |
Permeate Capacity m3/day (gpd) |
| PX-30S |
4.5-6.8 (20-30) |
100-360 (26,000-95,000) |
| PX-260 |
50-59 (220-260) |
850-25,000 (224,000-6,600,000) |
Similar to other PX products, at the core of each PX-260 and PX-30S unit is a tough, engineered ceramic cartridge with only one moving part that automatically adjusts to process flow variations. Efficiency and mixing are the same at all flows. The simple elegant design requires no artificial intelligence or adaptive control schemes to operate. Arrays of devices have built in redundancy, operating in parallel to service larger systems.
With this latest product introduction, ERI continues to offer the simplest, most reliable approach to isobaric energy recovery available today.
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