8-inch Low-Pressure RO Membrane Elements
JOZZON's 8-inch RO membrane elements are designed for large-scale commercial and industrial systems requiring high water output with low operating costs. Featuring a rugged fiberglass wound shell, these elements offer excellent pressure resistance, preventing telescoping and ensuring long-term stability. The low-pressure design reduces energy consumption by 15-30%, while high water flux minimizes the number of elements needed.
8-inch RO Membranes for Large-Scale Water Treatment
JOZZON’s 8-inch low-pressure membrane elements boast an effective membrane area of up to 400 square feet, with the same external dimensions as other 8-inch membrane elements. The JRW-8040 membrane element operates at low pressure and delivers high permeate flow, significantly increasing the economic efficiency of system operation. The membrane element increases permeate flow by increasing the effective membrane area, rather than the permeate flow per unit area, thus maintaining a low fouling rate and ensuring the membrane element’s lifespan.
Why Choose JOZZON 8-inch RO Membrane
1. Large Effective Membrane Area
With an effective membrane area of up to 400–430 ft², the membrane provides high overall production capacity within the standard 8-inch format.
2. High Water Production at Low Pressure
The optimized membrane structure delivers high permeate production at a rated operating pressure of 150 psi, supporting energy-efficient large-scale operation.
3. Balanced Salt Rejection
With 98.5–99% salt rejection, the membrane provides consistent permeate quality for industrial, municipal, and water reuse applications.
4. Lower Fouling Through Optimized Membrane Area
Increasing total membrane area rather than relying solely on higher flux per unit area helps maintain a relatively low fouling rate and supports longer membrane operating life.
5. Stable Long-Term Performance
Resistance to chemical degradation and compaction helps maintain stable water production and rejection performance during long-term operation.
6. Standard 8-inch System Integration
The membrane maintains standard 8-inch external dimensions, enabling straightforward integration with conventional 8-inch membrane pressure vessels and RO system configurations.
Typical Applications
1. Large-Scale Industrial Water Treatment
Designed for industrial RO systems requiring high water production, stable operation, and efficient energy consumption.
2. Municipal Drinking Water Treatment
Suitable for advanced municipal water treatment systems requiring reliable desalination and consistent permeate quality.
3. Large-Scale Water Reuse
Supports water reuse systems where reliable RO performance is required to recover and recycle treated water.
4. ZLD Pretreatment
Can be used as an RO stage in Zero Liquid Discharge pretreatment systems to reduce dissolved solids before downstream concentration processes.
High Membrane Area for Efficient System Design
JOZZON’s 8-inch RO Membrane increases total permeate production by expanding the effective membrane area rather than relying solely on higher flux per unit area. This design approach helps balance system capacity with fouling control and membrane durability.
Available Models
|
Membrane Element Model |
Effective Membrane Area ft2 (m2) |
Water Production Flow Rate GPD (m³/d) |
Stable Desalination Rate (%) |
Minimum Desalination Rate (%) |
|---|---|---|---|---|
|
JRW-8040 |
400 (37.2) |
11000(41.6) |
99.0 |
98.5 |
|
JRW-8040-430 |
430 (40.0) |
13200 (50.0) |
99.0 |
98.0 |
Extreme Usage Conditions
| Maximum Operating Pressure | 600psi(4.14 MPa) |
| Maximum Influent Flow Rate | 75gpm (17 m³/h) |
| Maximum Inlet Water Temperature | 45℃ |
| Maximum Influent SDI15 | 5 |
| Influent Free Chlorine Concentration | < 0.1 ppm |
| Influent ph Range During Continuous Operation | 2～12 |
|
ph Range of Influent During Chemical Cleaning (Short-term 30-minute Period) |
1～13 |
| Maximum Pressure Drop of a Single Membrane Element | 15psi (0.1Mpa) |
Test Conditions
| Test Pressure | 150psi (1.03Mpa) |
| Test Solution Temperature | 25℃ |
| Test Solution Concentration (NaCl) | 1500ppm |
| Test Solution ph Value | 7.5 |
| Single Membrane Element Recovery Rate | 15% |
Membrane Element Size
The units in the diagram are millimeters (inches).
