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| Low pressure spiral RO element |
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| ES15-U |
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| RO element with large membrane surface area, realizing high water permeate flow at ultra-low pressure operation. |
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Outline |
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| A fully aromatic polyamide ultra-low pressure spiral RO element suitable for applications such as intermediate RO, post RO or recovery RO in ultra-pure water production systems etc. Its excellent features allow drastic reduction in start-up time, facility costs and the required installation space. |
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Features |
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The water permeate flow increased significantly while maintaining the IPA rejection at 93% which is equivalent to the previous model. |
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Non-organic iron and TOC elution levels are minimal due to the maximized cleanliness of the membrane element. |
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Effective membrane surface area is 37m2 (8 inch element) |
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Sizes |
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Performances |
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| ES15-U8 |
Surface area
(m2) |
Rejection
(%) |
Flux
(m3/d) |
Weight
(in wet condition)
(kg) |
| 37 |
94 |
40 |
21 |
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[Evaluation conditions] •Evaluation solution: 0.05% NaCl water solution •Operating pressure: 0.7MPa •Water temperature: 25°C •Recovery rate:10～20%
[Membrane surface area] Effective membrane surface area based on the product design
*The above values are sample observed values, not the guaranteed performance. |
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Operating Conditions |
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| Item |
Unit |
Recommended operating condition |
Usage limit |
| Operating pressure |
MPa |
Set according to the designed flux |
Max.4.1 |
| Operating temperature |
°C |
5-30 |
Max.40 |
| Concentration of residual chlorine |
mg/L |
0 |
Max.1.0
(during cleaning) |
| pH range |
- |
- |
1～11
(during cleaning) |
| Feed flow rate |
L/min |
- |
Max.245 |
| Concentrate flow rate |
55-65 |
Min. 44 |
| Pressure drop |
1 element |
KPa |
<50 |
Max.82 |
| Over 5 element |
<200 |
Max.420 |
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| *Above figures are only for the purpose of guidelines and not the guaranteed figures. |
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