PSI MEMBRANE® Pro-SW-HR Seawater RO Membrane, incorporatedEnhanced with state-of-the-art Thin Film Nanocomposite (TFN) technology, designed to revolutionize desalination by dramatically reducing costs while ensuring unparalleled water purity. It offers industry-leading salt rejection capabilities, making it perfect for high salinity seawater applications.
- Achieve 30% Increased Flow:Our groundbreaking TFN technology enables this membrane to produce an impressive 30% more flow compared to conventional TFC membranes.
- Exceptional High Rejection Rate of 99.85%:The innovative TFN surface technology ensures outstanding salt-rejection performance at reduced pressures, enhancing efficiency.
- Reduced Cleaning Frequency:The TFN membrane's superb anti-fouling properties minimize the presence of microorganisms and inorganic pollutants, significantly decreasing the need for frequent cleaning.
- Wide Cleaning pH Range (1-13):Offers unparalleled cleaning effectiveness, durability, and resilience with its extensive pH range, paired with exceptional chemical resistance.
Product |
Effective Membrane area
ft² (m²) |
Feed spacer thickness (mil) |
Product Flow Rate ¹
²g p d( m ³/d) |
Stable Salt Rejection¹
(%) |
Minimum Salt Rejection¹
(%) |
Pro-SW-HR-2521F34 |
13(1.2) |
34 |
300(1.1) |
99.85 |
99.7 |
Pro-SW-HR-2540F34 |
28(2.6) |
34 |
700(2.7) |
99.85 |
99.7 |
Pro-SW-HR-4021F34 |
33(3.1) |
34 |
800(3.0) |
99.85 |
99.7 |
Pro-SW-HR-4040F34 |
90(8.4) |
34 |
2300(8.7) |
99.85 |
99.7 |
Pro-SW-HR-8040F32 |
400(37) |
32 |
9000(34) |
99.85 |
99.7 |
Pro-SW-HR-8040F28 |
440(40) |
28 |
11000(41.5) |
99.85 |
99.7 |
Pro-SW-HF-8040F28 |
400(37) |
28 |
12000(45.9) |
99.80 |
99.7 |
1. Product flow rate and exceptional salt rejection were meticulously measured using the following predefined test conditions:
Pro-SW-HR Specifications: Tested with a feed water concentration of 32,000 ppm NaCl, under a pressure of 800 psi (5.5 MPa). The water temperature was maintained at 77°F (25°C) with an effective recovery rate of 8% per membrane.
Pro-SW-HF Specifications: Evaluated with a feed water concentration of 20,000 ppm NaCl, also at 800 psi (5.5 MPa). The water was similarly kept at 77°F (25°C), achieving an impressive 15% recovery rate per membrane.
2. Product flow has a variation range of +/-20%, an adaptable solution for diverse needs.
3. F34 Features: A robust fiberglass-wrapped casing with a 34-mil mesh thickness. We offer a variety of additional cases, meshes, and membrane elements tailored to your specific requirements.
Operating Conditions: Key Considerations
Operating Limits |
Unit |
Value |
Maximum operatingpressure |
psi(bar) |
1200(83)b |
Maximumfeed water temperature |
°F(°C) |
113(45)a |
Maximum pressure drop |
bar |
1 |
ContinuousoperationpH range |
|
2~11c |
Cleaning PH range |
|
1~13 |
Maximum feed watere SDl15 |
|
5 |
Maximum influent turbidity |
ntu |
1 |
Maximum residual chlorine concentration of influent |
ppm |
<0.1 |
a. The maximum operating temperature intricately correlates with both the operating pressure and pH levels.
b. The maximum operating pressure is contingent upon the temperature and pH of the inlet water. For conditions exceeding 35°C or 69 bar, please consult your account manager for tailored guidance.
c. Continuous operation is bound by the pH limits, which are influenced by the inlet water temperature and pressure.
DIMENSIONS: mm
Model |
A |
B |
C |
Pro-SW-HR-2521F34 |
533 |
61 |
19 |
Pro-SW-HR-2540F34 |
1016 |
61 |
19 |
Pro-SW-HR-4021F34 |
533 |
100 |
19 |
Pro-SW-HR-4040F34 |
1016 |
100.3 |
19.1 |
Pro-SW-HR-8040F32 |
1016 |
200 |
28.6 |
Pro-SW-HR-8040F28 |
1016 |
200 |
28.6 |
Pro-SW-HF-8040F28 |
1016 |
200 |
28.6 |
Flux Comparison: Features a super smooth surface and ultra-hydrophilic properties for unparalleled performance.


Seawater Desalination: Experience unrivaled purity with our Large Flux Seawater Desalination Filter, ensuring an exceptional 99.85% salt rejection rate. Zero Discharge of Latex Wastewater: Achieve sustainable and eco-friendly operations by eliminating latex wastage completely. Copper Foil Industry Wastewater Treatment: Enhance efficiency in copper foil production with advanced wastewater treatment technologies.
New Energy Industry: Propel into the future with cutting-edge solutions designed for next-generation energy demands. Sulfuric Acid Purification and Recovery: Maximize resource efficiency with superior sulfuric acid purification and sustainable recovery processes. Lithium Extraction from Salt Lake: Harness the power of nature with streamlined lithium extraction processes from salt lakes, optimized for high yield and environmental care.
Our prestigious accolades include the Health & Safety Management System Certificate, the revered Environmental Management System Certificate, and the globally recognized ISO 9001 Quality System Certificate. These certifications stand as a testament to our unwavering dedication to excellence and sustainable practices.
We pride ourselves on groundbreaking innovation, as evidenced by our Invention Patent for Membrane Production and the Invention Patent for the cutting-edge Multi-layer RO Membrane. In addition, our portfolio of achievements is further enriched with esteemed Utility Model Patent Certificates, underscoring our commitment to technological advancement and leadership.
1. Q:Are you a manufacture or a trading company?
A:We are manufacturer with our own factory and meanwhile we cooperation with other factories in our own technology.
2. Q: What about the lead time for mass production?
A: Our production time: 10-15 days for regular models.
3.Q:How you guarantee products quality?
A:We inspect and control the whole process from raw materials, production process, finished product to shipment.
4. Q: Can you offer sample before mass order? is it free or extra?
A:Yes samples will be kindly arranged for your confirmation. Please contact us for more details.
5.why choose us ?
We have advanced technology for the production of TFN membrane.
We have established the first TFN coating production line in China and achieved stable mass production.
We have equipped 1000m2 test platform, advanced water testing technology.
We provide RO,NF,UNF, Special Membrane Element and SPEC Customized Membrane as well.
We offering customer competitive price with excellent products quality and comprehensive services.
Proshare History
2016 - Under the visionary leadership of Dr. Lin Xiaofeng, a distinguished expert with the National Major Talent Introduction Project, the Proshare PhD. team made a triumphant return to China, energizing our innovative pursuits.
2017 - We proudly established our headquarters in Nanopolis Suzhou, renowned as the world's largest hub for nano technology industrial applications, marking a significant milestone in our journey.
2018 - Proshare initiated a groundbreaking venture with the setup of our first exclusively designed TFN coating production line, heralding the commencement of mass production.
2019 - In a year marked by remarkable strides,PSI MEMBRANE® emerged as a trailblazer, successfully supplanting imported nanofiltration membrane products. This innovation found stable applications in diverse fields such as textile wastewater, landfill leachate, and high salt & COD wastewater. Moreover, we became the pioneering domestic supplier of high-end household nanofiltration water purifiers, setting new standards in environmental protection.
2020 - Proshare launched revolutionary SPEC customized membranes, catering to large-scale environmental engineering enterprises and providing exemplary service to several listed companies, further solidifying our industry leadership.
2021 - Proshare was recognized as a qualified supplier for Sinopec, where we delivered integrated TFN membrane solutions specifically for the petrochemical sector, enhancing operational efficiencies and sustainability.
2022 - Proshare expanded its footprint with the inception of subsidiaries across Shenzhen City, Hunan Province, Fujian Province, and Jiangxi. This strategic expansion allowed us to extend unparalleled service to customers and positioned us as the foremost domestic supplier within emerging industries such as synthetic biology, lithium battery technology, and copper foil production,among others.
2023 - Proshare proudly became the premier domestic supplier of seawater desalination membranes to prestigious international luxury cruise companies, showcasing our cutting-edge innovation on the global stage.
2024 - Exciting developments are on the horizon, as we anticipate groundbreaking achievements in the near future.