Product Catalog
ERI’s PX family of energy recovery devices is designed to ensure consistent performance over a broad range of flows and pressures. The efficiency of PX devices will remain high regardless of salinity, temperature, or recovery rate variations. PX efficiency is guaranteed to be greater than 95% for most seawater reverse osmosis applications.
PX Pressure Exchanger energy recovery devices: 300 Series
| Product | Capacity (gpm) | Capacity (m3/hr) |
| PX-300 | 200-300 | 45-68 |
PX Pressure Exchanger energy recovery devices: 65 Series
The 65 series of energy recovery devices is designed for any size reverse osmosis desalinization plant.
| Product | Capacity (gpm) | Capacity (m3/hr) |
| PX-260 | 180-260 | 41-59 |
| PX-220 | 140-220 | 32-50 |
| PX-180 | 100-180 | 23-41 |
PX Pressure Exchanger energy recovery devices: 4S Series
The 4S series of energy recovery devices is intended for smaller desalination applications.
| Product | Capacity (gpm) | Capacity (m3/hr) |
| PX-140S | 90-140 | 20-32 |
| PX-90S | 60-90 | 14-20 |
| PX-70S | 40-70 | 9-16 |
| PX-45S | 30-45 | 7-10 |
| PX-30S | 20-30 | 4.5-6.8 |
Circulation Pump
This family of pumps conveys water through the membranes, PX devices, and associated piping in the high pressure portion of the reverse osmosis system.
| Product | Capacity (gpm) | Capacity (m3/hr) |
| VP-6891 | 1,100-2,200 | 250-500 |
| VP-4671 | 400-1,100 | 91-250 |
| VP-3471 | 175-530 | 40-120 |
| HP-2400 | 130-300 | 30-68 |
| HP-1250 | 100-200 | 23-45 |
| HP-8500 | 50-100 | 11-23 |
Note: ERI provides outstanding customer service and support for any product. As older PX products are replaced with more efficient units, an inventory of discontinued parts and toolkits is maintained for customers in need. These include PX-15, PX-25, PX-40, PX-60, PX-90 (dual), and PX-120 (dual).