PSI MEMBRANE® Pro-SW-HR Seawater RO Membrane, incorporatedFeaturing cutting-edge Thin Film Nanocomposite (TFN) technology,this membrane is a revolutionary advancement in desalination technology, designed to substantially cut costs while providing water of unparalleled quality. Its industry-leading salt rejection makes it perfect for the most demanding high salinity seawater challenges.
- Delivers 30% More Flow:Thanks to the groundbreaking advancements of TFN technology, this membrane achieves an extraordinary 30% increase in flow compared to conventional TFC membranes, setting a new standard in the industry.
- Superior Rejection Rate: 99.85%:The innovative surface technology derived from TFN ensuresoutstanding salt rejection capabilities even at lower pressures, maximizing efficiency and performance.
- Reduced Cleaning Frequency:Boasting exceptional anti-fouling properties, the TFN membrane effectively minimizes the presence of microorganisms and inorganic contaminants, leading to significantly reduced cleaning needs.
- Broad Cleaning pH Range (1-13):With an unmatched cleaning efficiency, this membrane showcases impressive robustness and durability, attributed to its wide cleaning pH range,further enhanced by its high chemical tolerance, ensuring long-lasting performance.
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. Experience the pinnacle of efficiency with our product's flow rate and salt rejection rate, meticulously optimized under stringent test conditions to deliver unmatched reliability and top-tier performance:
Pro-SW-HR: Subjected to a rigorous test environment with a feed water concentration of 32,000 ppm NaCl at a demanding pressure of 800 psi (5.5 MPa), and a steady feed water temperature of 77°F (25°C), this model achieves a remarkable 8% recovery rate per single membrane, showcasing its superior capabilities.
Pro-SW-HF: With a feed water concentration of 20,000 ppm NaCl, this model maintains an enduring pressure of 800 psi (5.5 MPa) and a stable temperature of 77°F (25°C), achieving an exceptional 15% recovery rate per single membrane, highlighting its efficiency and robustness.
2. Embrace flexibility with our product's flow rate, adaptable within a range of +/- 20%, offering unparalleled resilience and versatility across diverse operational settings and environmental conditions.
3. The F34 model is crafted with a robust fiberglass-wrapped case and a mesh thickness of 34 mil, complemented by an extensive selection of case types, mesh, and membrane elements designed to meet a wide array of specific needs.
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. Our calculated maximum operating temperature is a sophisticated function of the interplay between operating pressure and pH, crafted to ensure safe and efficient operations.
b. Maximize operational safety with our pressure guidelines: The maximum operating pressure varies with inlet water temperature and pH. For temperatures over 35°C or pressures beyond 69 bar, seek personalized advice from your account manager.
c. The continuous operation pH limit is precisely calibrated in relation to the inlet water temperature and operating pressure, guaranteeing optimal performance and seamless functionality.
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: Our product, with its exceptionally smooth surface and ultra-hydrophilic properties, consistently delivers remarkable performance and unwavering reliability across a diverse spectrum of applications.


Seawater Desalination: Expertly converting the vastness of the ocean into an endless reserve of pristine, drinkable water. Zero Discharge of Latex Wastewater: Championing green initiatives by completely eliminating latex waste streams. Copper Foil Industry Wastewater Treatment: Diligently purifying and recycling to support sustainable and responsible industrial practices.
New Energy Industry: Setting a benchmark with innovative solutions for the evolving domain of sustainable power and advancement. Sulfuric Acid Purification and Recovery: Maximizing resource utilization through pioneering purification methodologies. Lithium Extraction from Salt Lake: Revolutionizing the future of energy storage with cutting-edge lithium extraction and refining processes.
At Proshare Innovation Suzhou Co., Ltd., we are dedicated to ensuring the pinnacle of quality and safety across our operations. We take immense pride in our collection of esteemed certifications, including the prestigious Health & Safety Management System Certificate, the distinguished Environmental Management System Certificate, and the highly respected ISO9001 Quality System Certificate. These significant accolades reflect our unwavering commitment to excellence, positioning us as a paragon of quality assurance within the industry. Our adherence to exemplary industry standards sets us apart as leaders in our field.
Our remarkable strides in membrane technology have earned us an impressive portfolio of prestigious patents. We are proud holders of the Invention Patent for Membrane Production and the pioneering Invention Patent for Multi-layer RO Membrane, alongside a wealth of Utility Model Patent Certificates. These patents underscore our relentless pursuit of innovation and confirm our leadership in advancing the frontier of cutting-edge technology. Our groundbreaking contributions are continuously reshaping the landscape of technological progress 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. The return of this distinguished team infused the company with unparalleled expertise and foresight, propelling us towards a future rich with potential and discovery.
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. This strategic move placed Proshare at the heart of innovation, enabling us to lead the charge in cutting-edge technological advancements.
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. This milestone exemplified our dedication to pushing the boundaries of what is possible, setting a new standard in the industry.
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. This transformative product underscores our role as pioneers in sustainable technology, offering advanced solutions that meet diverse industrial needs while safeguarding our planet.
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. Our ability to tailor these membranes to specific requirements has set new benchmarks in the industry, fostering innovation and collaboration with key players in environmental engineering.
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. Our solutions have become synonymous with excellence in the industry, reinforcing our position as a trusted partner in complex industrial applications.
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. This expansion reflects our unwavering commitment to meeting the evolving needs of dynamic and high-growth industries, ensuring our continued leadership and service excellence.
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. This milestone not only highlights our innovative capabilities but also our ability to deliver top-tier solutions to the most discerning clients worldwide.
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. As we step into the future, we remain committed to pushing the boundaries of technology and innovation, ensuring a legacy of success and advancement.