Energy Recovery Devices (ERD) are used inreverse osmosis (RO) systems to recycle theenergy held in discharged brine from themembranes. MPE 70 is designed for use with lowviscosity and corrosive fluid such as sea water.The Danfoss MPE 70 consists of an isobaricpressure exchanger driven by an electrical motor.It offers unique benefits from the electricalcontrol combined with the high efficiency fromthe isobaric pressure exchanger.The MPE 70 design ensures lubrication of allmoving parts by the fluid itself.All parts included in the MPE 70 are designed toprovide long service life with a constant highefficiency and minimum service required.