Pressure Exchanger Technology

A History of Invention, a Future of Innovation

Core Technology

Our pressure exchanger technology is at the heart of many of our products. It is designed to make industrial fluid-flow processes more efficient and environmentally sustainable, lowering costs, saving energy, and minimizing emissions. This unique, versatile technology can operate in both high-pressure and low-pressure industrial fluid-flow systems and can handle a range of fluids from relatively clean to very dirty.  

Energy Recovery Devices in desalination, industrial wastewater treatment, CO2 systems

How It Works

Pressure exchanger technology acts like a fluid piston, efficiently transferring energy between high-pressure and low-pressure liquid and/or gas through continuously rotating ducts. Key to the operation of a pressure exchanger is the micron-level clearance between the rotor and the pressure exchanger’s stationary components, including the sleeve and the end covers. Fluid circulating within this clearance acts as a bearing, minimizing friction for an extremely efficient exchange of pressure energy. Through our vertically integrated manufacturing, we ensure that all pressure exchangers, no matter the product application, meet our high standards for quality, durability, and reliability.

Pressure exchanger technology acts like a fluid piston, efficiently transferring energy.
How pressure exchanger technology works in energy recovery

Accelerating Technical Innovation

The initial product application of our technology was the PX Pressure Exchanger (PX). Delivering energy savings of up to 60% and efficiencies up to 98%, the PX revolutionized seawater reverse osmosis (SWRO) desalination and is today’s industry standard in energy recovery.

Desalination with our technology and without energy recovery devices

What began as a game-changing invention for desalination has grown into a global business advancing the environmental sustainability of customers’ operations in multiple industries. Today, we continue to push the boundaries of our core technology to handle different operating environments and industrial applications. With a robust pipeline of products in various stages of incubation, our team, from world-class engineers to manufacturing specialists, is committed to solving complex challenges for industrial fluid-flow markets worldwide.


The world’s need for clean water is intensifying, driven by population growth, industrialization, rapid urbanization, and climate change. According to United Nations estimates, global demand for water will surge 30% by 2050.

A breaking wave

Wastewater Treatment

Membrane technologies now offer an energy and cost-effective way to meet regulations requiring minimal liquid discharge (MLD) and zero liquid discharge (ZLD) for wastewater treatment. By employing energy recovery devices, those savings can be compounded while preserving system reliability and operability.

industrial wastewater treatment solutions for ZLD MLD energy recovery

High Recovery RO

With water scarcity worsening around the world and the use of Reverse Osmosis (RO) in applications such as brackish and industrial wastewater treatment growing, interest in high recovery RO is growing as well.

Energy Recovery High Recovery reverse osmosis treatment

CO2 Systems

CO2 offers a climate-friendly alternative to many commercial and industrial practices that previously relied on harmful greenhouse gases. The PX G1300® utilizes proven technology to improve the energy efficiency of CO2 systems, reducing energy costs, potentially lowering capital costs of the system, and reducing CO2 emissions.

energy efficiency for sustainable CO2 refrigeration systems

PX for Process Innovators

This program promotes new innovations using PX technology at the R&D, pilot, demonstration, and first reference stages.

Energy Recovery Devices for innovation research in desalination and wastewater