PSI MEMBRANE® Pro-SW-HR Seawater RO Membrane, incorporatedFeaturing cutting-edge Thin Film Nanocomposite (TFN) technology,this membrane significantly reduces desalination costs while ensuring superior water quality. It offers industry-leading salt rejection, ideal for even the most challenging high salinity seawater applications.
- Delivers 30% More Flow:Thanks to TFN's advanced technology, this membrane delivers an impressive 30% more flow compared to standard TFC membranes.
- Superior Rejection Rate: 99.85%:The innovative surface technology from TFN ensuresexceptional salt rejection at reduced pressures.
- Reduced Cleaning Frequency:With outstanding anti-fouling properties, the TFN membrane minimizes microorganisms and inorganic pollutants, resulting in less frequent cleaning.
- Broad Cleaning pH Range (1-13):It offers unparalleled cleaning efficiency, robustness, and durability, thanks to its extensive cleaning pH range,coupled with high chemical tolerance.
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. Our product's flow rate and salt rejection rate are expertly measured under meticulously controlled test conditions, promising unparalleled performance and dependability:
Pro-SW-HR: This model is tested with a feed water concentration of 32,000 ppm NaCl under a challenging feed water pressure of 800 psi (5.5 MPa), at a stable feed water temperature of 77°F (25°C), resulting in an impressive recovery rate of 8% per single membrane.
Pro-SW-HF: Evaluated with a feed water concentration of 20,000 ppm NaCl, maintaining an unwavering feed water pressure of 800 psi (5.5 MPa) and a consistent feed water temperature of 77°F (25°C), this model achieves an outstanding 15% recovery rate per single membrane.
2. The product flow rate may flexibly vary within a range of +/- 20%, ensuring adaptability and resilience across a spectrum of operational conditions and environments.
3. The F34 model is engineered with a durable fiberglass-wrapped case featuring a mesh thickness of 34 mil. Additionally, we offer an extensive range of case types, mesh, and membrane elements to fulfill diverse requirements.
Operating Conditions:
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 is a calculated function of the interaction between operating pressure and pH, guaranteeing safety and efficiency in operation.
b. The maximum operating pressure is contingent upon both the temperature and pH of the inlet water. For inlet water temperatures exceeding 35°C or pressures surpassing 69 bar, please consult with your account manager for tailored guidance.
c. The continuous operation pH limit is precisely determined based on the inlet water temperature and operating pressure to ensure optimal functionality and performance.
SIZE: 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: With its super smooth surface and ultra-hydrophilic properties, our product delivers outstanding performance and reliability across a wide range of applications.


Seawater Desalination: Seamlessly transforming the vast oceans into a boundless supply of pure, fresh water. Zero Discharge of Latex Wastewater: Promoting eco-friendly practices with the total eradication of latex effluents. Copper Foil Industry Wastewater Treatment: Meticulous purification and recycling, ensuring sustainable and responsible industrial operations.
New Energy Industry: Leading the way with visionary solutions for the future landscape of sustainable power and innovation. Sulfuric Acid Purification and Recovery: Elevating resource efficiency with cutting-edge purification technologies. Lithium Extraction from Salt Lake: Pioneering the future of energy storage with state-of-the-art lithium extraction and processing techniques.
At Proshare Innovation Suzhou Co., Ltd., we place an unwavering emphasis on upholding quality and safety. We are honored to be accredited with a prestigious suite of certifications that include: the Health & Safety Management System Certificate, the Environmental Management System Certificate, and the internationally esteemed ISO9001 Quality System Certificate. These noteworthy recognitions are a testament to our steadfast dedication to achieving excellence and our strict adherence to the industry's pinnacle standards, setting us apart as a leader in quality assurance.
Our pioneering accomplishments in membrane technology have garnered us an impressive array of prestigious patents. We proudly possess the Invention Patent for Membrane Production, the groundbreaking Invention Patent for Multi-layer RO Membrane, and a multitude of Utility Model Patent Certificates. These patents illuminate our indefatigable pursuit of innovation and affirm our leadership in propelling the forefront of cutting-edge technology. Our contributions continue to redefine the landscape of technological advancement and innovation.
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 - A landmark year for Proshare as our prominent PhD team, led by the acclaimed Dr. Lin Xiaofeng, a key figure in the National Major Talent Introduction Project, returned to China, setting the stage for a new epoch of groundbreaking innovation.
2017 - Proshare strategically established its headquarters in Nanopolis Suzhou, a nexus of innovation known as the world's largest hub for nano technology industrial applications, positioning us at the vanguard of technological progress.
2018 - Proshare proudly unveiled its first-ever, meticulously engineered TFN coating production line and initiated mass production, marking a pivotal advancement in our manufacturing capabilities, reinforcing our commitment to excellence.
2019 -PSI MEMBRANE® Witness the revolutionary PSI MEMBRANE® as it seamlessly replaced imported nanofiltration membrane offerings. Our strong applications reach into textile wastewater treatment, landfill leachate management, and the purification of high salt & COD wastewater, standing as a pillar of environmental protection endeavors. Furthermore, we emerged as the leading domestic provider of premium household nanofiltration water purifiers.
2020 - Proshare took an innovative leap by launching the SPEC customized membrane specially crafted for major environmental engineering firms, offering sophisticated and pioneering solutions that have empowered numerous listed corporations.
2021 - Proshare solidified its reputation as a dependable supplier for Sinopec, providing comprehensive TFN membrane solutions that have been flawlessly integrated into the petrochemical sphere, underscoring our dedication to unparalleled quality and dependability.
2022 - Proshare broadened its horizons by inaugurating subsidiaries throughout Shenzhen, Hunan, Fujian, and Jiangxi Provinces. This strategic enlargement has significantly bolstered our customer service capabilities and established us as the leading domestic supplier in rapidly growing sectors, including synthetic biology, lithium battery technology, and copper foil production, among others.
2023 - Proshare reached a monumental achievement as the first domestic provider of seawater desalination membranes for distinguished international luxury cruise lines, affirming our status as trailblazers in the industry.
2024 - With great anticipation, Proshare looks forward to a year brimming with expectations and pioneering opportunities, as we continue to forge a path of innovation and excellence.