UO-ED 50 - 1,200 Z CD Counterpressure RO Units With Duplex Softener

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Herco Wassertechnik GmbH

Neckar, Germany

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Pre-filter, backflow preventer, duplex water softener, limitron hardness control device, and counterpressure reverse osmosis unit are all included in the ready-to-connect combi unit. Water with a salinity of up to 1,000 mg/l can be desalinated with it. It can be operated at up to 7 bars and is intended for a 4 bar permeate counterpressure. The unit has a full-flow diaphragm pressure vessel and a small rotary vane pump (unit sizes 50 and 150) or high-quality centrifugal pump (unit sizes 300 - 1,200). With the ability to freely alter limit settings and log all pertinent operating data, the microprocessor controller RO digital facilitates fully automated operation.
Terms of usage:

Only properly pretreated well or surface water, or feed water of drinking water quality, may be desalinated with this machine.
The device is intended to operate at 15 °C and 1,000 mg/l of salinity (TDS).
Even after three years of operation, the anticipated permeate yield is reached in these circumstances.
The quality of the raw water and the pre-treatment affect the permeate production.

                                                            Controller
                                                            RO digital
                                                        
                                                            Desalination rate min.
                                                            97 %
                                                        
                                                            Permeate recovery
                                                            75 – 80 %
                                                        
                                                            Permeate back pressure max.
                                                            4 - 7 bar
                                                        
                                                            pH value operation
                                                            3.6 – 9.5
                                                        
                                                            pH value cleaning
                                                            2 – 12
                                                        
                                                            Ambient temperature
                                                            5 – 40 °C
                                                        
                                                            Free chlorine
                                                            not detectable
                                                        
                                                            Iron (Fe)
                                                            < 0.2 mg/l
                                                        
                                                            Manganese (Mn)
                                                            < 0.05 mg/l
                                                        
                                                            Silica (SiO2)
                                                            < 25 mg/l
                                                        
                                                            Silt density index (SDI)
                                                            < 3
                                                        
                                                            Feed water temperature
                                                            5 – 35 °C
                                                        
                                                            Feed water pressure
                                                            4 – 6 bar
                                                        
                                                            Pressure fluctuation
                                                            ± 0.5 bar

Utilization of Counterpressure RO Units With Duplex Softener

ongoing desalination and softening of the water.
In accordance with VDI 6022, for the direct feeding of, for example, air conditioning systems, humidifiers with water.

Advantages of Counterpressure RO Units With Duplex Softener

Pre-treated unit that is ready to attach.
Just four connecting points—drinking water, permeate, waste water, and socket—make for an easy installation on site.
To satisfy the demands of air conditioning applications, design with a minimum number of dead zones and hygienic operation.
It is possible to transport permeate across multiple floors, and permeate storage is not necessary.
Flexible RO digital controller with several parametrization possibilities and operating data logging.