MPE 70: The first active ERD for medium and large SWRO plants
Integrating a low-voltage motor with an isobaric energy recovery device, the MPE 70 is the world’s first active ERD designed for medium and large SWRO plants.
By completely eliminating the risk of rotor overspin, the motor-controlled MPE 70 safely operates at variable and maximum flow rates and reduces membrane feed salinity increases due to mixing.
In addition to unprecedented energy efficiency and reliability, the MPE 70 reduces the need for ERD redundancy in larger plants, prevents rotor stops due to biofouling, and facilitates smarter automation and better predictive maintenance.
The MPE 70 builds on Danfoss’s proven technology and decades of energy-saving experience.

Fresh water at highest efficiency
The isobaric energy recovery technology offers the best and most efficient result
Features and benefits
The world’s first active isobaric ERD for medium and large SWRO plants
Better energy efficiency, control & reliability
Eliminates the risk of rotor overspin
Safe operation at variable & maximum flow rates
Lower membrane feed salinity increases due to mixing
Less ERD redundancy required
No more rotor stops due to biofouling
Ready for smarter automation & better predictive maintenance
Easy installation in parallel-coupled trains
Proven technology, now at a larger scale




Calculate the number of ERDs required for your application and discover how much energy you can save.

The world’s most efficient high-pressure pumps
In addition to best-in-class ERDs, Danfoss also designs the world’s most efficient high-pressure pumps for SWRO.