Product Description
The counterpressure reverse osmosis is used for the desalination of softened water with a salinity of up to 1,000 mg/l. It is designed for a permeate counterpressure of 4 bars and can be operated with up to 7 bars. The unit is equipped with a compact rotary vane pump (unit size 50 and 150) or a high-quality centrifugal pump (unit size 300 - 1,200) as well as a full-flow diaphragm pressure vessel. The microprocessor controller RO digital enables fully automatic operation with logging of all relevant operating data and freely adjustable limit values.
Benefits
Compact unit, ideal for confined spaces
Design with minimal dead zones and hygienic operation to meet requirements air conditioning
Transport of permeate over several floors possible, no permeate storage required
Versatile RO digital controller with logging of operation data and many parametrisation options
Applications
Desalination of softened water
Supply of air-conditioning systems such as humidifiers with water acc. to VDI 6022
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
Conditions of use:The unit may only be used for the desalination of softened feed water with drinking water quality or appropriately pre-treated well or surface water. The unit is designed for a salinity (TDS) of 1,000 mg/l and a temperature of 15 °C. Under these conditions, the projected permeate output is achieved even after three years of operation. The permeate yield depends on the raw water quality and the pre-treatment. The following parameters must be maintained in the feed water:
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: 2 6 bar
Pressure fluctuation: ± 0.5 bar