PSI MEMBRANE® Pro-SW-HR Seawater RO Membrane,incorporatedharnessing pioneering Thin Film Nanocomposite (TFN) technology, our product excels in reducing the costs of desalination while ensuring superior water purity. It offers industry-leading salt rejection, perfectly designed for high-salinity seawater challenges.
- Generates 30% More Flow:Our cutting-edge TFN technology facilitates an impressive 30% increase in flow compared to conventional TFC membranes.
- High Rejection Rate of 99.85%:With TFN's innovative technology on the surface, it guarantees exceptional salt rejection even at lower pressures.
- Reduced Cleaning Frequency:The outstanding anti-fouling properties of the TFN membrane significantly decrease the accumulation of microorganisms and inorganic pollutants, leading to a reduced need for cleaning.
- Extensive Cleaning pH Range (1-13):Delivers unparalleled cleaning efficiency, strength, and longevity due to its broadest cleaning pH range and enhanced 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 salt rejection rate were meticulously determined based on meticulously controlled test conditions:
Pro-SW-HR: Feed water concentration is measured at 32,000 ppm as NaCl, with an applied feed water pressure of 800 psi (5.5 MPa), and a feed water temperature of 77°F (25°C). It achieves a recovery rate of 8% for each single membrane unit.
Pro-SW-HF: Feed water concentration is 20,000 ppm as NaCl, under a feed water pressure of 800 psi (5.5 MPa), and a consistent feed water temperature of 77°F (25°C). This configuration allows for a recovery rate of 15% for each individual membrane.
2. The product flow variation range is +/-20%, ensuring flexibility and adaptability in diverse conditions.
3. The F34 model is encapsulated in a robust fiberglass wrapped case with a mesh thickness of 34 mil. Additional options for case types, mesh, and membrane elements are available to cater to specific 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 intricately linked to both the operating pressure and the pH levels, ensuring optimal performance.
b. The maximum operating pressure is dependent on the temperature and pH of the inlet water. If the inlet water temperature surpasses 35°C and/or the inlet water pressure exceeds 69 bar, please consult your account manager for guidance.
c. The pH limit for continuous operation correlates with the inlet water temperature and operating pressure, maintaining system stability.
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 Super smooth surface Ultra hydrophilic


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Proshare Innovation Suzhou Co., Ltd. is proud to hold a suite of prestigious certifications that underscore our commitment to excellence and rigorous standards. Our accolades include the Health & Safety Management System Certificate, the Environmental Management System Certificate, and the ISO9001 Quality System Certificate. Each of these esteemed recognitions represents our dedication to maintaining superior health, safety, environmental, and quality benchmarks across all facets of our operations.
Our cutting-edge Advanced Membrane Filter Element for Seawater Desalination Systems is backed by a robust portfolio of intellectual property. This includes an Invention Patent for membrane production, as well as an Invention Patent for our pioneering multi-layer RO membrane technology. Additionally, we hold several Utility Model Patent Certificates, reflecting our innovative approach and expertise in developing industry-leading solutions that push the boundaries of technology in the field of desalination.
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 remarkable year marked by the return of Proshare's PhD team under the visionary leadership of Dr. Lin Xiaofeng, a distinguished expert in the National Major Talent Introduction Project, back to China.
2017 - Proshare's headquarters found a prestigious home in Nanopolis Suzhou, the world's largest community devoted to the industrial application of cutting-edge nanotechnology.
2018 - Proshare ambitiously established its first exclusively designed TFN coating production line, ushering in an era of mass production.
2019 -PSI MEMBRANE® made a groundbreaking impact by successfully replacing imported nanofiltration membrane products. It proved its worth in diverse environmental protection fields such as textile wastewater treatment, landfill leachate management, high salt & COD wastewater processing, and more. Additionally, it became the pioneering domestic supplier of high-end household nanofiltration water purifiers.
2020 - Proshare made waves by launching SPEC customized membrane solutions, tailored for large-scale environmental engineering enterprises, successfully catering to the needs of numerous listed companies.
2021 - Proshare earned its stripes as a trusted supplier to Sinopec, offering integrated TFN membrane solutions specifically designed for the petrochemical industry.
2022 - With the establishment of subsidiaries in Shenzhen City, Hunan Province, Fujian Province, and Jiangxi, Proshare expanded its service network, becoming the first domestic supplier to emerging industries including synthetic biology, lithium battery manufacturing, and copper foil production,among others.
2023 - Proshare achieved a historic milestone, becoming the first domestic supplier of seawater desalination membranes for prestigious international luxury cruise companies.
2024 - An exciting year of expectations awaits as Proshare continues to forge new paths.