PSI MEMBRANE® Pro-SW-HR Seawater RO Membrane, IncorporatedEnhanced with groundbreaking Thin Film Nanocomposite (TFN) technology, experience a significant reduction in desalination costs while enjoying unparalleled water quality! Our product sets the industry standard with exceptional salt rejection, ideal for handling high salinity seawater applications.
- Delivering an Impressive 30% Increase in Flow:Harness the power of TFN's leading-edge technology, offering a remarkable 30% increase in flow compared to traditional TFC membranes.
- Outstanding Rejection Rate of 99.85%:TFN's cutting-edge surface innovation ensures superior salt-rejection capabilities even at lower pressures.
- Reduced Cleaning Frequency:The TFN membrane's exceptional anti-fouling properties significantly curtail microorganism and inorganic contamination, leading to a reduced frequency of cleaning.
- Extensive Cleaning pH Range (1-13):Achieve optimal cleaning performance, unmatched robustness, and long-lasting durability, thanks to its comprehensive 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 were meticulously assessed under the following optimal test conditions:
Pro-SW-HR: With a feed water concentration of 32,000 ppm as NaCl, exerting a feed water pressure of 800 psi (5.5 MPa), and a feed water temperature of 77°F (25°C), each single membrane achieves an impressive recovery rate of 8%.
Pro-SW-HF: Specially designed for a feed water concentration of 20,000 ppm as NaCl, maintaining a feed water pressure of 800 psi (5.5 MPa) at a stable temperature of 77°F (25°C), each membrane offers a remarkable recovery rate of 15%.
2. The product flow can vary within a range of +/- 20%, accommodating different operational conditions.
3. The F34 model features a robust fiberglass wrapped case with a mesh thickness of 34 mil. Additionally, we offer a variety of case, mesh, and membrane elements to meet diverse 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. The maximum operating temperature is intricately related to the operating pressure and pH, ensuring optimal performance.
b. The maximum permissible operating pressure is dependent on the inlet water's temperature and pH. For scenarios where the inlet water temperature exceeds 35°C and/or the inlet water pressure surpasses 69 bar, please consult with your dedicated account manager for guidance.
c. The pH limit for continuous operation is closely connected to the inlet water temperature and operating pressure, requiring careful monitoring.
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 a super smooth surface and ultra-hydrophilic properties, ensuring unparalleled efficiency.


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Pioneering a commitment to excellence, Proshare Innovation Suzhou Co., Ltd. boasts an impressive suite of certifications that affirm our dedication to health, safety, and environmental responsibility. Our accolades include the esteemed Health & Safety Management System Certificate, the comprehensive Environmental Management System Certificate, and the renowned ISO9001 Quality System Certificate, each serving as a testament to our commitment to meeting and exceeding industry standards.
At the forefront of innovation, Proshare Innovation Suzhou Co., Ltd. has achieved remarkable milestones in the field of membrane technology. Our Invention Patent for Membrane Production showcases our expertise and pioneering spirit, while our Invention Patent for Multi-layer RO Membrane highlights our commitment to advanced filtration solutions. Additionally, our Utility Model Patent Certificates underscore our capability in developing practical, effective, and cutting-edge filtration technologies.
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 - Proshare witnessed the triumphant return of our distinguished PhD. team, under the leadership of Dr. Lin Xiaofeng, a luminary of the National Major Talent Introduction Project.
2017 - Proshare proudly established its headquarters in Nanopolis Suzhou, the world's preeminent hub for nano technology industrial applications.
2018 - Proshare inaugurated its first, meticulously designed TFN coating production line, ushering in the era of mass production.
2019 - The launch ofPSI MEMBRANE® marked a groundbreaking achievement as it successfully supplanted imported nanofiltration membrane products. This innovation now thrives in applications like textile wastewater, landfill leachate, high salt & COD wastewater, and numerous other environmental protection arenas. Proshare also proudly emerged as the pioneering domestic supplier of high-end household nanofiltration water purifiers.
2020 - Proshare introduced SPEC customized membrane solutions tailored for large-scale environmental engineering enterprises, earning the trust of multiple prestigious listed companies.
2021 - Proshare's expertise was recognized as we became a qualified supplier for Sinopec, offering comprehensive TFN membrane solutions specifically designed for the petrochemical sector.
2022 - Proshare expanded its footprint with new subsidiaries in Shenzhen City, Hunan, Fujian, and Jiangxi provinces. We broadened our service offerings, becoming the inaugural domestic supplier in avant-garde industries such as synthetic biology, lithium batteries, and copper foil manufacturing, among others.
2023 - Proshare achieved another milestone as the first domestic supplier of seawater desalination membranes, catering to prestigious international luxury cruise companies.
2024 - Anticipation is building for another exciting year of breakthroughs.