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| HOME > Products > Spiral Wound Elements > Low Pressure |
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Compared to other desalination processes, the use of CSM RO Membranes shows marked improvements in performance, cost-efficiency and more convenient maintenance. However, because energy costs required for the operation of the RO system takes up a large portion of the whole maintenance fee, continued efforts are being made to relieve this burden.
One solution is CSM’s Low Pressure RO Membranes, which yields same performance rates as other regular RO membranes but requiring only two-thirds of the pressure. Therefore, RO systems installed with these membrane elements require far less in energy and relevant costs (such as part costs because the system can be simplified). Main applications are for treating brackish water.
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| Model |
Flow Rate
(GPD,m3/d) |
Salt Rejection(%) |
Diameter/
Length (inch) |
Test Conditions |
Spec Sheet |
| RE16040-BLR* |
36,000 (136.3) |
99.6 |
16.0 / 40 |
40" LP Standard |
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| RE8040-BLF440 |
11,500 (43.5) |
99.2 |
8.0 / 40 |
40" LP High Flux |
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| RE8040-BLR440* |
9,900 (37.4) |
99.6 |
8.0 / 40 |
40" LP Standard |
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| RE8040-BLN440* |
13,000 (49.2) |
99.2 |
8.0 / 40 |
40" LP Standard |
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| RE8040-BLN* |
12,000 (45.4) |
99.2 |
8.0 / 40 |
40" LP Standard |
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| RE8040-BLF* |
11,500 (43.5) |
99.2 |
8.0 / 40 |
40" LP High Flux |
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| RE8040-BLR* |
9,000 (34.1) |
99.6 |
8.0 / 40 |
40" LP Standard |
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| RE4040-BLF |
2,500 (9.5) |
99.2 |
4.0 / 40 |
40" LP High Flux |
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| RE4040-BLN |
2,600 (9.8) |
99.2 |
4.0 / 40 |
40" LP Standard |
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| RE4040-BLR |
1,900 (7.2) |
99.6 |
4.0 / 40 |
40" LP Standard |
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| RE2540-BLR |
600 (2.2) |
99.6 |
2.5 / 40 |
40" LP Standard |
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| RE2540-BLN |
800 (3.0) |
99.2 |
2.5 / 40 |
40" LP Standard |
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| RE2540-BLF |
800 (3.0) |
99.2 |
2.5 / 40 |
40" LP High Flux |
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| RE4021-BLN |
1,050 (4.0) |
99.2 |
4.0 / 21 |
21" LP Standaard |
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| RE4021-BLF |
1,050 (4.0) |
99.2 |
4.0 / 21 |
21" LP High Flux |
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| RE2521-BLN |
300 (1.1) |
99.2 |
2.5 / 21 |
21" BW Standard |
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| RE2521-BLF |
350 (1.3) |
99.2 |
2.5 / 21 |
21" LP High Flux |
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| 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 Standard test conditions: NaCl 1,500 mg/L, Pressure 150 psig, Temperature 25°C, pH 6.5-7.0 Recovery 8% |
| 40" LP High Flux test conditions: NaCl 500 mg/L, Pressure 100 psig, Temperature 25°C, pH 6.5-7.0 Recovery 15% |
The stated data were obtained after 30 minutes of operation |
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* These models are tested and certified by NSF to NSF/ANSI standard 61 |
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