Hunan Keensen Technology Co., Ltd.
Leading RO/NF Membranes Manufacturer.
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High Rejection 35000ppm Seawater RO Membrane Elements
Applications
Benefits
1. 8040 Elements
1.1 Specifications
| Model | Active Area ft2(m2) | Feed Spacer Thickness(mil) | Permeate Flow Rate GPD(m3/D) | Stabilized Salt Rejection (%) |
| SW-8040HR | 400(37.2) | 28 | 6500(24.6) | 99.80 |
| SW-8040MR | 400(37.2) | 28 | 7500(28.3) | 99.75 |
| SW-8040HF | 400(37.2) | 28 | 9000(34.07) | 99.8 |
1.2 Standard Test Conditions
| Solution | Temperature (℃) | pH | Operating Pressure psi(MPa) | Recovery (%) |
| 32000mg/L NaCl | 25 | 7.5-8.0 | 800(5.5) | 8 |
Individual flow rate may vary±15%
2. 4040 Elements
2.1 Specifications
| Model | Active Area ft2(m2) | Feed Spacer Thickness(mil) | Permeate Flow Rate GPD(m3/D) | Stabilized Salt Rejection (%) |
| SW-4040HR | 85(7.9) | 28 | 1500(5.7) | 99.75 |
| SW-4040MR | 85(7.9) | 28 | 1800(6.8) | 99.70 |
2.2 Standard Test Conditions
| Solution | Temperature (℃) | pH | Operating Pressure psi(MPa) | Recovery (%) |
| 32000mg/L NaCl | 25 | 7.5-8.0 | 800(5.5) | 8 |
Individual flow rate may vary±15%
3. Element Dimensions and Operating Limits
| Model | Length | Diameter | Permeate Tube inner Diameter | Permeate Tube Extension Length | ||||
| inch | mm | inch | mm | inch | mm | inch | mm | |
| 8040 | 40 | 1016 | 7.9 | 201 | 1.12 | 28.5 | / | / |
| 4040 | 40 | 1016 | 3.9 | 99 | 0.75 | 19.1 | 1.04 | 26.5 |
| Maximum Operating Pressure | 1200psi(8.3MPa) |
| Operating Temperature Range | 0-45℃ |
| Maximum Feed Silt Density Index (SDI15) | 5.0 |
| Free Chlorine Tolerance | 0.1mg/L |
| pH Range,Continuous Operation | 3-10 |
| pH Range,Short-Term Cleaning | 1-13 |
| Maximum Element Pressure Drop | 15psi(0.1MPa) |
All pictures for reference only.Please contact KeenSen for further advise.