RO Membrane SW4021
Key Specifications
Model
SW4021
Effective Membrane Area
33 ft² / 3.1 m²
Work Pressure
800 psi
Salt Rejection
99.8%
Product Description
The SW series reverse osmosis composite membrane is made of interfacial polymerization of nanoparticle mixed matrix materials developed by a new generation, combined with high-precision, fully automatic component rolling technology, to achieve the application effects of high desalination and high pressure resistance of products.
This technology helps us obtain resources such as fresh water and chemical minerals from inexhaustible seawater, and realize efficient recycling of resources from high-salt industrial wastewater that has a significant impact on the ecological environment.
The product is suitable for:
TDS > 10,000mg/L seawater desalination
Brine treatment
High-salt industrial sewage processing
Reclaimed water treatment
RO/NF treated concentrated water
Other high-salinity water sources
Technical Specifications
| Membrane Element Model | Stable Desalination Rate (%) | Average Water Output GPD (m³/d) | Effective Membrane Area ft²(m²) |
|---|---|---|---|
| CM-SW-2521 | 99.5 | 2700 (1.0) | 12 (1.1) |
| CM-SW-2540 | 99.5 | 600 (2.3) | 28 (2.6) |
| CM-SW-4014 | 99.8 | 500 (1.9) | 22 (2.0) |
| CM-SW-4021 | 99.8 | 750 (2.8) | 33 (3.1) |
| CM-SW-4040 | 99.8 | 1,600 (6.1) | 90 (8.4) |
| CM-SW-8040 | 99.8 | 7,500 (28.4) | 400 (37) |
Test Conditions
Test pressure
800 psi (5.52 MPa)
Test solution temperature
25±1 ℃
Test solution concentration (NaCl)
32,000±100 ppm
Test solution pH
7-8
Extreme Operating Conditions
Maximum operating pressure
1,200 psi (8.27 MPa)
Maximum water temperature
45°C
Maximum water SDI₁₅
5
Free chlorine concentration in water
<0.1 ppm
pH range during continuous operation
2-11
pH range during chemical cleaning
1-13
