Reverse Osmosis

Reverse Osmosis

Low Pressure

The method using reverse osmosis membranes is characterized by superior performance, economy, and maintenance compared to other desalination processes.

However, since the energy cost required for its operation accounts for a significant portion of the total maintenance cost, it is continuously being improved. Low-pressure products offered by CSM have almost the same performance as existing products at two-thirds of their pressure, resulting in significant reductions in energy costs. Those low-pressure products can also be applied to other parts of the equipment, which can lower the manufacturing cost of the equipment. Their basic uses are the same as those of products for salt water.
Product name Flow rate (GPD, m3/d) Salt rejection rate (%) Diameter/length (inch) Evaluation criteria Product specification
RE8040-BLF440 12,650 (47.9) 99.5 8.0 / 40 40" LP High Flux
RE8040-BLF* 11,500 (43.5) 99.5 8.0 / 40 40" LP High Flux
RE8040-BLR440* 12,500 (47.3) 99.6 8.0 / 40 40" LP Standard
RE8040-BLR* 11,500 (43.5) 99.6 8.0 / 40 40" LP Standard
RE8040-BLN440* 13,000 (49.2) 99.6 8.0 / 40 40" LP Standard
RE8040-BLN* 12,000 (45.4) 99.6 8.0 / 40 40" LP Standard
RE4040-BLF* 2,500 (9.5) 99.2 4.0 / 40 40" LP High Flux
RE4040-BLN* 2,600 (9.8) 99.4 4.0 / 40 40" LP Standard
RE4040-BLR* 2,100 (7.9) 99.6 4.0 / 40 40" LP Standard
RE2540-BLR 740 (2.8) 99.4 2.5 / 40 40" LP Standard
RE2540-BLN 930 (3.5) 99.2 2.5 / 40 40" LP Standard
RE2540-BLF 930 (3.5) 99.2 2.5 / 40 40" LP High Flux
RE4021-BLR 1,000 (3.8) 99.4 4.0 / 21 21" LP Condition
RE4021-BLN 1,200 (4.5) 99.2 4.0 / 21 21" LP Standard
RE4021-BLF* 1,200 (4.5) 99.2 4.0 / 21 21" LP High Flux
40" LP High Flux test conditions: NaCl 500 mg/L, Pressure 100 psig, Temperature 25°C, pH 6.5-7.0 Recovery 15%
40" LP Standard test conditions: NaCl 1,500 mg/L, Pressure 150 psig, Temperature 25°C, pH 6.5-7.0 Recovery 15%
21" LP High Flux test conditions: NaCl 500 mg/L, Pressure 100 psig, Temperature 25°C, pH 6.5-7.0 Recovery 8%
21" LP Standard test conditions: NaCl 1,500 mg/L, Pressure 150 psig, Temperature 25°C, pH 6.5-7.0 Recovery 8%
21" LP Condition test conditions: NaCl 1,500 mg/L, Pressure 150 psig, Temperature 25°C, pH 6.5-7.0 Recovery 8%
The stated data were obtained after 30 minutes of operation
* These models are tested and certified by NSF to NSF/ANSI/CAN 61.
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