Reverse Osmosis Membranes (RO)
If you are looking for a professional ro membrane manufacturer in China, then Shanghai CM can be your first choice. CM has been an expert ro membanes supplier in China since 2009. We can provide you turn key water treatment solutions.
Our RO Membrane Series
Comprehensive range of reverse osmosis membranes designed for various water treatment applications, from ultra-low pressure to seawater desalination
ULP Series
Ultra Low Pressure membranes designed for maximum energy efficiency and cost savings. Ideal for municipal water treatment and low-pressure applications with excellent salt rejection.
LP Series
Low Pressure membranes offering balanced performance and energy efficiency. Perfect for commercial and industrial applications requiring reliable water purification with reduced operating costs.
BW Series
Brackish Water membranes engineered for high salt rejection and superior performance. Specifically designed for treating brackish water sources in industrial and municipal applications.
SW Series
Seawater membranes built for the most demanding desalination processes. Delivers exceptional salt rejection and durability for large-scale seawater treatment and desalination plants.
Application Areas
Our membrane technology solutions are widely applied across various industries, providing efficient water treatment and filtration systems.
Energy Industry
Specialized membrane solutions for power plants and energy facilities.
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Chemical Industry
High-performance systems for chemical processes and recycling.
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Seawater Desalination
Advanced RO technology for converting seawater to fresh water.
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Drinking Water
Reliable filtration systems for safe, clean drinking water.
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Municipal Sewage
Efficient solutions for municipal wastewater treatment and reuse.
Learn More →Proven, Reliable, High-performance Water Purification
Compared to traditional filtration technologies that rely on a screen or filter to remove particles, reverse osmosis (RO) is a pressure-driven separation process that employs a semipermeable membrane and the principles of crossflow filtration.
Reverse osmosis water treatment provides the finest level of filtration. The RO membrane acts as a barrier to all salts and inorganic molecules, as well as organic molecules with a molecular weight greater than approximately 100.
Effectively removes contaminants including:
RO Membrane Product Series
Professional reverse osmosis membrane solutions for various water treatment applications, from brackish water to ultra-low pressure systems
Sea Water Series
High PressureSeawater desalination RO membranes are specifically engineered to treat seawater with high salinity levels, typically containing 35,000-45,000 ppm of total dissolved solids. These high-performance membranes operate at pressures ranging from 800-1,000 psi and are designed with advanced polymer chemistry to withstand harsh marine conditions. Seawater RO membranes feature superior salt rejection rates of 99.4-99.8% and are built to handle the challenging fouling conditions present in seawater applications.
| Model | Effective Area ft²(m²) | Average Yield GPD(m³/d) | Salt Rejection(%) | Recovery Rate(%) |
|---|---|---|---|---|
| SW-2521 | 12(1.1) | 270(1.0) | 99.5 | 4 |
| SW-2540 | 28(2.6) | 600(2.3) | 99.5 | 8 |
| SW-4014 | 22(2.0) | 500(1.9) | 99.5 | 8 |
| SW-4021 | 33(3.1) | 750(2.8) | 99.5 | 8 |
| SW-4040 | 90(8.4) | 1600(6.1) | 99.8 | 8 |
| SW-8040 | 400(37) | 7500(28.4) | 99.8 | 8 |
Brackish Water Series
High PressureBrackish water RO membranes are used to treat brackish water, which is water with a TDS level between 1,000 and 10,000 ppm. Brackish water RO membranes are designed to function at pressures over 200 psi and require more energy than tap water RO membranes. The primary difference between brackish water and seawater is the amount of dissolved salts and solids.
| Model | Effective Area ft²(m²) | Average Yield GPD(m³/d) | Salt Rejection(%) | Recovery Rate(%) |
|---|---|---|---|---|
| BW-2521 | 13(1.2) | 350(1.3) | 99 | 15 |
| BW-2540 | 28(2.6) | 750(2.8) | 99.3 | 15 |
| BW-4021 | 36(3.3) | 900(3.4) | 99.3 | 8 |
| BW-4040 | 78(7.2) | 2500(9.5) | 99.5 | 15 |
| BW-8040 | 400(37) | 11000(41.6) | 99.5 | 15 |
Low Pressure Series
Medium PressureThe low-pressure (LP) series is an aromatic polyamide composite membrane element used for desalination of medium and low concentration brackish water. It has the characteristics of high desalination rate and large flux. It can be widely used in municipal water supply, surface water reuse, coal chemical industry, thermal power generation boiler supply water, food industry water, textile printing and dyeing, electroplating industry and other fields.
| Model | Effective Area ft²(m²) | Average Yield GPD(m³/d) | Salt Rejection(%) | Recovery Rate(%) |
|---|---|---|---|---|
| LP-2521 | 13(1.2) | 350(1.3) | 98.5 | 15 |
| LP-2540 | 28(2.6) | 750(2.8) | 99 | 15 |
| LP-4021 | 36(3.3) | 900(3.4) | 99 | 15 |
| LP-4040 | 78(7.2) | 2500(9.5) | 99 | 15 |
| LP-8040 | 400(37) | 11000(41.6) | 99 | 15 |
| LP-8440 | 440(41) | 12000(45) | 99 | 15 |
Ultra-low Pressure Series
Energy EfficientThe ultra-low (ULP) pressure series optimizes the membrane manufacturing process and has higher water flux and salt rejection rate than the previous generation, as well as better pollution resistance. This membrane element is suitable for desalination and deep treatment of low-salt raw water such as surface water, underground water, tap water, etc. with a salt content of less than 1000ppm. It can achieve high water production under extremely low operating pressure or small membrane area.
| Model | Effective Area ft²(m²) | Average Yield GPD(m³/d) | Salt Rejection(%) | Recovery Rate(%) |
|---|---|---|---|---|
| XLE-2521 | 13(1.2) | 350(1.3) | 98.5 | 8 |
| XLE-2540 | 28(2.6) | 750(2.8) | 99 | 15 |
| XLE-4021 | 36(3.3) | 900(3.4) | 99 | 8 |
| XLE-4040 | 78(7.2) | 2500(9.5) | 99 | 15 |
| XLE-8040 | 400(37) | 11000(41.6) | 99 | 15 |
| XLE-8440 | 440(41) | 12000(45) | 99 | 15 |
Customer Testimonials
Trusted by leading water treatment companies and industrial partners worldwide for reliable RO membrane solutions
Municipal Water Treatment
Europe • 18+ Months Operation
"We have been using these industrial RO membranes for over 18 months in a municipal water treatment system. The performance is stable, salt rejection is consistent, and cleaning frequency is lower than our previous supplier. Technical support during commissioning was professional and responsive. Overall, a reliable long-term partner for large-scale projects."
Industrial Process Water
Middle East • EPC Contractor
"As an EPC contractor, membrane stability and delivery reliability are critical for us. These RO membrane elements met the design flux and operating pressure exactly as specified. The membranes perform well under high TDS conditions, and the quality consistency across batches is very good. We will continue to use them in future industrial RO systems."
Desalination & Reuse
Southeast Asia • Water Reuse
"We compared several RO membrane manufacturers before placing bulk orders. This supplier offered clear technical data, fast response, and competitive pricing. After installation, the membranes showed excellent recovery performance and low fouling tendency. Our operating cost has been effectively reduced, and customer feedback has been positive."
Join hundreds of satisfied customers worldwide
Industrial RO Membrane - Frequently Asked Questions (FAQ)
What applications are industrial RO membranes mainly used for?
How do I choose the right RO membrane model for my system?
What is the typical salt rejection rate of industrial RO membranes?
How long is the service life of an industrial RO membrane?
What pretreatment is required before RO membranes?
How often should RO membranes be cleaned (CIP)?
Are your RO membranes compatible with major system brands?
Can RO membranes be used for high-temperature or high-pH applications?
What certifications or quality standards do industrial RO membranes meet?
Do you provide technical support and OEM services?
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Our Growth Journey
2009
Started manufacturing ultrafiltration membranes in Qingpu District, Shanghai.
2013
Added MBR production line and received CE and ISO 9001:2015 certifications.
2019
Established Shanghai CM Environmental Technology Co., Ltd. for overseas markets.
2023-2026
Expanded to 60+ countries with over 1,000 global customers and partners.