Low-pressure PX

By incorporating the Low-Pressure PX into a low-pressure reverse osmosis (LPRO) system, you can reduce specific energy consumption (SEC) by up to 30% versus a system without energy recovery. The PX recovers pressure energy from the final-stage brine and transfers it directly to the incoming feed, reducing the work required from the high-pressure pump. The result is lower operating cost per cubic meter and a more sustainable reuse or brackish-water RO process.

The Low-Pressure PX is built with corrosion-resistant ceramic components and a simple design with only one moving part, delivering industry-leading uptime (~99.8%) and a design life of about 30 years, with no scheduled maintenance. It maintains high efficiency across a wide operating window (5.5–31 bar / ~80–450 psi) and flow capacities (≈7–59 m³/h or 30–260 gpm). Its modular, scalable format supports both retrofits and new builds, helping operators minimize downtime, simplify spares, and reduce total cost of ownership.

The Low-Pressure PX integrates easily into new or existing plants because it’s an isobaric device installed on the final-stage brine line. It transfers that brine pressure directly to the incoming feed, which can reduce the required high-pressure pump size or allow reuse of existing pumps in retrofits. For OEMs and operators, this typically means a smaller energy-recovery footprint, fewer equipment changes, lower CAPEX, and a faster retrofit with less installation risk.