As core deep purification component of industrial water systems, filter cartridge RO membrane series, also named Reverse Osmosis membrane, efficiently removes salt ions, heavy metals, colloids, algae and bacteria from raw water. Each standard RO membrane element adopts composite polyamide thin-film structure, delivering stable high desalination rate under long-term continuous operation. Before raw water enters the RO membrane module, front-stage pre-filtration by High Flow Filter is required to intercept large suspended solids and particulate fouling, greatly extending the service cycle of Reverse Osmosis membrane and lowering system cleaning frequency.
Working Principle of RO Membrane Element
Under designated operating pressure, raw feed water flows tangentially across the surface of the RO membrane. Pure water molecules pass through dense polyamide membrane layers into the central permeate collection tube to form qualified purified water. Dissolved salts, heavy metal ions, macromolecular organics and microorganisms cannot penetrate the Reverse Osmosis membrane, and flow out along the concentrated water pipeline as waste concentrate. The spiral-wound structure of each RO membrane element maximizes effective filtration area within limited housing space, boosting daily water production capacity and reducing overall equipment footprint for industrial water treatment stations.
Main Technical Parameters
Standard Sizes: 4040 small RO membrane, 8040 large industrial RO membrane element
Membrane Material: High-performance composite polyamide thin film
Nominal Salt Rejection Rate: ≥99.2% for brackish water grade
Max Continuous Operating Pressure: 1.6 MPa (232 psi)
Stable Operating Temperature Range: 5℃ ~ 45℃
Applicable Raw Water: Brackish water, seawater, boiler make-up water, industrial circulating water
All finished RO membrane element pass strict pressure resistance and salt rejection testing before delivery, fully compatible with complete sets of industrial water treatment Water Filter Element (RO & UF Membrane) supporting systems. Anti-fouling low-energy RO membrane specifications are available for high-turbidity industrial wastewater treatment projects.
Five Core Advantages of RO Membrane Series
1 Ultra-Stable Desalination Efficiency
Premium polyamide Reverse Osmosis membrane maintains consistent salt rejection under long uninterrupted operation without performance decay.
2 High Daily Water Output
Large spiral winding area per single RO membrane element raises unit water yield and cuts total membrane quantity required for the project.
3 Anti-Fouling Hydrophilic Surface
Special modified coating on the RO membrane reduces organic and biological dirt adhesion, simplifying regular chemical cleaning work.
4 Wide Industrial Compatibility
Fit seawater desalination plants, thermal power boiler water, electronic factory ultra-pure water, pharmaceutical preparation water and food beverage processing lines.
5 Strong Chemical Tolerance
Resistant to standard weak acid and weak alkaline online cleaning agents, no permanent damage during routine maintenance cycles.
Typical Industrial Application Scenarios
Our industrial RO membrane element serves seawater desalination stations, thermal power plants, semiconductor manufacturing workshops, pharmaceutical factories and food processing enterprises. Matched with front-end high flow filter and supporting UF membrane, the RO membrane builds full multi-stage raw water pretreatment and deep desalination solution to meet strict industrial pure water quality standards.
Related Products
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FAQ About Industrial RO Membrane
Q1 What complete pretreatment system should be equipped before RO membrane inlet?
A1 Raw water requires high flow security filter and UF membrane module to remove suspended solids, colloids and algae, protecting the RO membrane element from rapid fouling.
Q2 What is the standard salt rejection rate of brackish Reverse Osmosis membrane?
A2 Conventional industrial RO membrane reaches salt rejection above 99.2%; special seawater grade RO membrane with higher desalination performance can be customized separately.
Q3 What cleaning chemicals can safely flush fouled RO membrane?
A4 Only mild acid and mild alkaline dedicated membrane cleaning agents are permitted; strong corrosive chemicals will permanently damage the polyamide Reverse Osmosis membrane layer.
Q4 Can RO membrane continuously operate under temperature higher than 45℃?
A4 Long-term operating temperature cannot exceed 45℃; sustained high temperature will cause irreversible aging and performance drop of the RO membrane element.
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