4-inch Low-pressure High Flow Membrane Elements
JOZZON's 4-inch high-flux low-pressure membrane elements deliver an exceptional 3,200 GPD, meeting the demands of commercial systems requiring maximum water output with minimal energy consumption. Featuring a rugged fiberglass wound shell, these elements offer superior pressure resistance, preventing telescoping and ensuring long-term reliability. The high-flux design reduces the number of elements needed per system, lowering capital and operating costs.
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Product Overview
JOZZON's 4-inch high-flux low-pressure membrane elements, rated at an industry-leading 3,200 GPD, are engineered to meet the growing demand for higher water production while keeping operating costs low. From point-of-use water dispensers to light commercial systems, these elements can be flexibly configured to build systems with various requirements, such as energy savings, maximum water recovery, or compact footprint.
All elements feature a rugged fiberglass wound shell, offering better pressure resistance than traditional glued or taped alternatives. This robust construction prevents membrane telescoping under fluctuating operating conditions, delivers a longer service life with fewer failure risks, and supports stable performance even in multi-element configurations. The exceptional 3,200 GPD flux means fewer membrane elements are required to achieve target water output, significantly reducing both initial capital investment and ongoing maintenance costs.
Whether you are designing a high-output vending machine, a restaurant water system, a light industrial pretreatment unit, or an office central RO system, JOZZON's 4-inch high-flux low-pressure elements provide the perfect balance of compact footprint, durability, and energy-saving efficiency.
Features & Benefit
1.High Water Flux
Optimized membrane structure and hydrophilic modification deliver higher flow at same pressure, reducing membrane count and initial investment.
2.Excellent Salt Rejection
Over 99% salt rejection effectively removes salts and contaminants, ensuring permeate quality and extending downstream system regeneration cycles.
3.Reduced Energy Consumption
Low-pressure drop design and high-hydrophilicity materials lower operating pressure by 15-30%, cutting electricity costs and enabling green production.
4.Stable Long-Term Performance
Excellent resistance to chemical degradation and compaction ensures slow flux decline, with a 3-5+ year service life and fewer cleaning/replacement needs.
5.Wide Feed Water Compatibility
Fouling-resistant, wide-channel design adapts to various water types (groundwater, reclaimed water, etc.), resisting fouling and reducing pretreatment requirements.
6.Easy System Integration
Standard industrial dimensions compatible with mainstream membrane housings and pipes enable quick drop-in replacement, short commissioning time, and easy maintenance.

Available Models
|
Membrane Element Model |
Effective Membrane Area ft2 (m2) |
Water Production Flow Rate GPD (m³/d) |
Stable Desalination Rate (%) |
Minimum Desalination Rate (%) |
|---|---|---|---|---|
| JRW-4040-HF |
95 (8.9) |
3200 (12.1) |
99.0 |
98.0 |
Extreme Usage Conditions
| Maximum Operating Pressure | 600psi (4.14 MPa) |
| Maximum Influent Flow Rate | 16gpm (3.6 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 |
| pH Value of The Test Solution | 7.5 |
| Single Membrane Element Recovery Rate | 15% |
Membrane Element Size
The units in the diagram are millimeters (inches).

