PSI MEMBRANE® Pro-SW-HR Seawater Reverse Osmosis Membrane, IncorporatedFeaturing groundbreaking Thin Film Nanocomposite (TFN) technology, This product drastically reduces desalination expenses while ensuring exceptional water quality. It offers industry-leading salt rejection, perfectly suited for applications involving high salinity seawater.
- Delivers a remarkable 30% increase in flow:Our TFN Leading technology is capable of producing 30% more flow compared to conventional TFC membranes.
- High Rejection Rate of 99.85%:The innovative TFN technology on the membrane surface ensures superior salt rejection performance at lower pressures.
- Reduced Cleaning Frequency:The TFN membrane's exceptional anti-fouling capability significantly diminishes both microbial and inorganic pollution, leading to reduced cleaning requirements.
- Extensive Cleaning pH (1-13) Range:Offers the most effective cleaning performance, unmatched robustness, and enhanced durability thanks to its extensive cleaning pH range and superior 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 remarkable flow rate and salt rejection efficiency of our product were measured under meticulously controlled conditions:
Pro-SW-HR: Enjoy an impressive feed water concentration of 32,000 ppm as NaCl. At a substantial feed water pressure of 800 psi (5.5 MPa) and an optimal temperature of 77°F (25°C), each membrane achieves an 8% recovery rate.
Pro-SW-HF: Experience efficient handling of feed water with a concentration of 20,000 ppm as NaCl. Operating under the robust pressure of 800 psi (5.5 MPa) and a balanced temperature of 77°F (25°C), each membrane delivers a significant recovery rate of 15%.
2. Expect a flow variation range of +/- 20%, ensuring adaptability and performance flexibility.
3. The F34 model boasts a durable fiberglass wrapped case with a 34 mil mesh thickness. We also offer additional case options, meshes, and membrane elements to suit diverse needs.
Operating Condition:
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. Maximum operating temperature is intricately linked to the operating pressure and pH, ensuring safety and efficiency.
b. Maximum operating pressure depends on the inlet water's temperature and pH. If inlet water temperature surpasses 35°C or pressure exceeds 69 bar, consult your account manager for guidance.
c. Continuous operation pH limits are influenced by inlet water temperature and operating pressure, maximizing operational consistency.
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 illustrates our membrane's unparalleled super smooth surface and ultra-hydrophilic properties, setting a new standard in water purification technology.


Applications: Our cutting-edge Advanced 99.85% Salt Rejection Membrane Filter is designed to excel in diverse scenarios, including Seawater Desalination, where it efficiently transforms seawater into life-sustaining fresh water. It also excels in achieving Zero Discharge of Latex Wastewater, showcasing its environmental stewardship. Furthermore, it plays a crucial role in Copper Foil Industry Wastewater Treatment, ensuring sustainable industrial processes.
Innovative Applications: Our state-of-the-art membrane filter finds its place in the New Energy Industry, offering unparalleled solutions for Sulfuric Acid Purification and Recovery, thus promoting resource efficiency and cost-effectiveness. It is also instrumental in Lithium Extraction from Salt Lake, contributing significantly to the advancement of green technology and the electric vehicle revolution.
Our esteemed achievements include: the Health & Safety Management System Certificate, an Environmental Management System Certificate, and the prestigious ISO9001 Quality System Certificate.
Our innovative prowess is demonstrated through our Invention Patent for Membrane Production, the cutting-edge Invention Patent for Multi-layer RO Membranes, and our Utility Model Patent Certificates.
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
In 2016, Proshare's esteemed PhD team, led by the visionary Dr. Lin Xiaofeng-a distinguished member of the National Major Talent Introduction Project-made a triumphant return to China, marking the inception of an era of innovation and excellence.
By 2017, Proshare strategically positioned its headquarters in the illustrious Nanopolis Suzhou, a global nucleus for nanotechnology industrial advancements and applications, setting the stage for groundbreaking progress.
In 2018, Proshare set a new industry standard by establishing its first exclusive, meticulously designed production line dedicated to TFN coating production and commenced mass production, heralding a new chapter of efficiency and craftsmanship.
2019 marked a milestone with the advent ofPSI MEMBRANE® which not only successfully replaced imported nanofiltration membrane products but also found stable applications across various sectors, including textile wastewater treatment and landfill leachate management. This innovation further solidified Proshare as the pioneering domestic supplier of high-end household nanofiltration water purifiers, catering to a growing demand for sustainable solutions.
In 2020, Proshare unveiled its innovative SPEC customized membrane designed specifically for large environmental engineering enterprises. This bespoke solution has successfully served numerous listed companies, enhancing their operational capabilities.
By 2021, Proshare had achieved recognition as a qualified supplier for Sinopec, offering comprehensive integrated TFN membrane solutions tailored for the petrochemical industry, thereby strengthening its footprint in a critical sector.
In 2022, Proshare expanded its reach by establishing subsidiaries in Shenzhen city, Hunan Province, Fujian Province, and Jiangxi. This strategic expansion extended our service offerings to a broader customer base, making Proshare the foremost domestic supplier in emerging industries such as synthetic biology, lithium battery production, and copper foil manufacturing, among others, exemplifying our adaptability and forward-thinking approach.
In 2023, Proshare proudly became the first domestic firm to supply seawater desalination membranes to prestigious international luxury cruise companies, underscoring our commitment to excellence and innovation on a global scale.
2024 holds exciting prospects and promises further groundbreaking achievements for Proshare.