Pumps
Our line of high-pressure and circulation/booster pumps are built with corrosion-resistant material—yielding a long and reliable service life—and designed specifically for reverse osmosis (RO) applications. Because uptime matters.
High-Pressure Pumps
CPXP™ Axial Piston Pump
The CPXP axial piston pump is a positive displacement pump purpose-built for high pressure and corrosive environments. Designed with a compact footprint and robust construction, it is the ideal pumping solution for small to mid-scale reverse osmosis (RO) systems in both water and wastewater treatment.
ATMP High-Pressure Pump
Energy Recovery offers the ATMP high-pressure pump, a high pressure, multistage feed pump ideal to combine with the Energy Recovery PX® Pressure Exchanger® or the AT Turbocharger energy recovery device. ATMP is ideal for small to medium-scale reverse osmosis systems where reliability matters.
Circulation and Booster Pumps
VPXP Pump
Our high-flow vertical pumps target high-pressure RO plants with permeate production rates ranging from 40 to 520 m³/h (175 to 2,300 gpm). To optimize energy recovery, our circulation pumps pair with our PX devices for an end-to-end energy recovery solution that maximizes efficiency and cost savings.
HPXP High-Pressure Centrifugal Booster Pump
Engineered for the demanding requirements of SWRO and BWRO, the HPXP pump delivers robust performance under extreme pressure conditions. This radial split case centrifugal pump can be utilized as a PX circulation (booster) pump or an interstage booster pump for multi-stage reverse osmosis systems.
HP Pump
Our low-flow horizontal pumps pair with our PX devices for high-pressure RO trains with permeate production rates ranging from approximately 10 to 68.1 m3/h (44 to 300 gpm).
UHP Circulation and Booster Pump
The UHP Circulation and Booster Pump can be paired with our PX U Series for an end-to-end energy recovery solution that maximizes efficiency and cost savings. The UHP Pump targets UHPRO processes for ZLD and MLD applications with flow ranging from 4.5 to 22.7 m³/h (20 to 100 gpm) and is specifically designed to operate in an ultra high-pressure environment.
A complete high-pressure reverse osmosis solution
Our versatile pumps for reverse osmosis systems meet and exceed the demands of small to large scale water projects, offering high efficiency and performance.
Pumping systems that go the distance
Designed to be used in combination with our PX devices in seawater reverse osmosis, brackish reverse osmosis, or wastewater treatment plants, our circulation pumps offer high efficiency and performance.
Essential for reverse osmosis systems
High-pressure pumps force feedwater to pressures required by the reverse osmosis membranes. Our high-pressure pumps can deliver pressures up to 83 bar (1,200 psi). They are designed using corrosion-resistant stainless steel alloys to stand up to the operational and environmental demands of a high-pressure RO system.
Frequently Asked Questions
High-pressure pumps provide the driving force that enables water to pass through RO membranes. Selecting the correct pump ensures the system can achieve the required pressure efficiently without excessive energy use or wear. Proper pump selection can reduce energy consumption, maintain consistent permeate quality, and prevent premature membrane degradation, directly impacting long-term system reliability and operating costs.
Key considerations include flow rate, pressure range, efficiency curve, material compatibility, and resistance to fouling or scaling. In reverse osmosis systems, pumps might be handling variable feedwater quality and amounts of total dissolved solids. Materials such as duplex stainless steel or corrosion-resistant alloys are often preferred to extend service life. Having a variety of pump styles to adjust to exact plant needs is also important. The pumps carried by Energy Recovery work seamlessly with the PX Pressure Exchanger to ensure maximum plant performance.
Circulation pumps maintain balanced flow across membrane stages and help reduce concentration polarization, improving recovery rates and membrane longevity. Properly sized and controlled circulation pumps can enhance system stability and reduce energy waste by minimizing pressure fluctuations. When integrated with the PX Pressure Exchanger, these pumps support a highly efficient hydraulic design that lowers total system energy demand and maintenance requirements.
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