PSI MEMBRANE® Pro-SW-HR Seawater RO Membrane, incorporatedfeaturing cutting-edge Thin Film Nanocomposite (TFN) technology, this product masterfully reduces the cost of desalination while ensuring exceptional water quality. It offers industry-leading salt rejection, perfect for high-salinity seawater applications.
- Generates 30% more flow:Thanks to TFN Leading Technology, it is capable of producing 30% more flow than conventional thin-film composite (TFC) membranes.
- High Rejection Rate of 99.85%:TFN's innovative surface technology ensures exceptional salt rejection even at lower pressures.
- Reduced Cleaning Frequency:The remarkable anti-fouling performance of TFN membranes significantly diminishes microbial and inorganic contamination, resulting in reduced cleaning frequency.
- Wide Cleaning pH Range (1-13):Offers unparalleled cleaning efficiency, structural robustness, and long-lasting durability due to its extensive cleaning pH range and excellent 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. The product flow rate and salt rejection rate are meticulously calculated based on the following standardized test conditions:
Pro-SW-HR: Encompasses a feed water concentration at 32,000 ppm (as NaCl), with an authoritative feed water pressure of 800 psi (5.5 MPa). The feed water temperature is optimally maintained at 77 °F (25 °C) and exhibits a recovery rate of 8% per individual membrane.
Pro-SW-HF: Designed for a feed water concentration of 20,000 ppm (as NaCl), under a consistent feed water pressure of 800 psi (5.5 MPa). The temperature of the feed water is stabilized at 77 °F (25 °C), offering an impressive recovery rate of 15% for each membrane.
2. The product exhibits a flow variation range of +/- 20%, ensuring flexibility and adaptability in performance.
3. The F34 is crafted with a durable fiberglass-wrapped case featuring a mesh thickness of 34 mil. We offer additional types of cases, mesh, and membrane elements to meet 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 pinnacle of maximum operating temperature is intricately linked to both the operating pressure and pH levels, ensuring optimal performance.
b. The supreme operating pressure is dependent on the temperature and pH of the inlet water. For water temperatures exceeding 35°C and/or pressures surpassing 69 bar, please engage with your dedicated account manager.
c. Continuous operation pH limits are carefully correlated with both inlet water temperature and operating pressure, safeguarding the system's integrity.
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: Featuring an ultra-smooth surface and extraordinary hydrophilic properties, ensuring unmatched efficiency and performance.


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Innovative New Energy Solutions - Premier Sulfuric Acid Purification and Recovery - Efficient Lithium Extraction from Salt Lake
Our commitment to excellence is demonstrated through our comprehensive certifications. We proudly hold the Health & Safety Management System Certificate, ensuring the wellbeing of our operations. Additionally, our commitment to sustainability is affirmed by the Environmental Management System Certificate. Furthermore, we uphold superior quality standards with our prestigious ISO9001 Quality System Certificate.
Proshare Innovation Suzhou Co., Ltd. stands at the forefront of innovation with our exceptional patent portfolio. We possess an Invention Patent for Membrane Production that showcases our cutting-edge advancements. Our pioneering Invention Patent for the Multi-layer RO Membrane further highlights our technical expertise. Additionally, our Utility Model Patent Certificates reinforce our dedication to creating practical solutions that meet the evolving needs of industry.
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 - Embarking on an incredible journey, Proshare was founded by a distinguished team led by Dr. Lin Xiaofeng, an esteemed expert from the National Major Talent Introduction Project, as they returned to China.
2017 - Proshare strategically established its headquarters in Nanopolis Suzhou, a vibrant hub and the world's most extensive nanotechnology industrial application community.
2018 - Proshare unveiled its first state-of-the-art TFN coating production line and initiated full-scale mass production, marking a significant milestone.
2019 - The trailblazingPSI MEMBRANE® emerged successfully, replacing imported nanofiltration membrane products. It is now renowned for its stable applications in treating textile wastewater, landfill leachate, high salt & COD wastewater, and other critical environmental protection sectors. Proshare also became the pioneering domestic supplier for high-end household nanofiltration water purifiers.
2020 - Proshare proudly launched its innovative SPEC customized membrane catering to the unique needs of large environmental engineering enterprises, successfully serving several prestigious listed companies.
2021 - Proshare earned the status of a qualified supplier for Sinopec, providing integrated TFN membrane solutions that are revolutionizing the petrochemical industry.
2022 - Proshare expanded its footprint with new subsidiaries in Shenzhen city, Hunan Province, Fujian Province, and Jiangxi, extending unparalleled service to our esteemed clientele and becoming the leading domestic supplier in emerging industries such as synthetic biology, lithium battery, and copper foil, amongst others.
2023 - Proshare has triumphantly become the first domestic supplier of seawater desalination membranes for prestigious international luxury cruise companies, a testament to our innovative prowess.
2024 - Exciting developments are on the horizon, with promising expectations.