Home / Products / Reverse Osmosis Membrane Elements / Seawater Desalination (SW) / SWRO Membrane Extra High Rejection Series SW-8040-440XHR
UltraClean SW series are high-end RO membranes featuring a supporting layer with high compression resistance, thick and dense flawless thin film layer.
Product Description
With good wear and chemical degradation resistance, the membrane element does not need postprocessing during the manufacturing. It tolerates a wide range of pH, which enables more efficient and rougher cleaning using regular acid and base, therefore it has high cleaning efficiency. The membrane system can operate in long term under lower pressure due to thorough cleaning, therefore the membrane performs better during its service life. It can significantly reduce operation costs, and bring the best long-term economy to the seawater desalination system.
Product Highlights
High rejection rate of salts
High compression and fouling resistance and high cleaning efficiency
Cost-saving of seawater desalination system
Membrane Performance Specification
| Active Area ft²（m²） | 440（41） |
| Permeate Flow Rate GPD（m³/d） | 6600（25） |
| Min Rejection（%） | 99.70 |
| Average Rejection（%） | 99.82 |
Test conditions: inlet pressure 5.5 MPa (800 psi); inlet temperature 25°C (77°F); inlet water quality 32000ppm NaCl; inlet pH 8; recovery 8%.
Membrane Specification
| A inch(mm) | B inch(mm) | C inch(mm) |
| 40 (1016) | 1.125 (29) | 7.9 (201) |
Operating and Cleaning Limits
| Maximum Operating Pressure | 83 bar (1200 psi) |
| Maximum Operating Temperature | 45°C (113°F ) |
| Maximum Element Pressure Drop | 1.0 bar (15psi) |
| pH Range Continuous Operation | 2-11 |
| pH Range Short-Term Cleaning | 1-13 |
| Maximum Feed SDI(SDI15) | 5.0 |
| Free Chlorine Tolerance | < 0.1 ppm |
Permeate flow for individual elements may vary ±15 percent from the value specifed.
Active membrane area guaranteed ±4%.
Stabilized salt rejection is generally achieved within 24-48 hours of continuous use; depending upon feedwater characteristics and operating conditions.
