
PSI MEMBRANE® Pro-SW-HR seawater RO membrane,incorporated with innovative Thin Film Nanocomposite(TFN) technology, reduce the cost of desalination while delivering superior water quality. Provide industry leading salt rejection suitable for high salinity seawater applications.
- Produce 30% more flow:TFN Leading technology cable to produce 30% more flow than conventional TFC membrane.
- High rejection rate 99.85%:TFN innovated technology on surface guarantee excellent salt-rejection with lower pressures .
- Less Cleaning Frequency:TFN membrane outstanding anti-fouling performance is greatly reduce microorganisms and inorganic pollution contribute to less cleaning frequency .
- Wide Cleaning pH(1-13) Range:Provides the most effective cleaning performance, robustness and durability due to its widest cleaning pH range and 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.Product flow rate and salt rejection rate were based on the following test conditions:
Pro-SW-HR :Feed water concentration 32000 ppm as NaCl, Feed water pressure 800 psi (5.5 MPa), Feed water temperature 77 ° F (25 ° C), Recovery rate 8% for each single membrane.
Pro-SW-HF:Feed water concentration 20000 ppm as NaCl, Feed water pressure 800 psi (5.5 MPa), Feed water temperature 77 ° F (25 ° C), Recovery rate 15% for each single membrane.
2. Variation range of product flow +/-20%;
3. F34 is a fiberglass wrapped case with a mesh thickness of 34 mil, we have extra type of case, mesh and membrane element available .
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 |
b. The maximum operating pressure is related to the temperature and pH of the inlet water. When the inlet water temperature exceeds 35°C and/or the inlet water pressure exceeds 69 bar, please contact your account manager.
c. The pH limit of continuous operation is related to the inlet water temperature and operating pressure.
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 |











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1. Q: Are you a manufacturer or a trading company?
A:We are a dedicated manufacturer with our own state-of-the-art factory and also collaborate with other factories using our proprietary technology.
2. Q: What is the lead time for mass production?
A: Our production timeline is 10-15 days for regular models.
3. Q: How do you guarantee product quality?
A: We meticulously inspect and control every step from raw materials, through the production process, to the finished product and shipment.
4. Q: Can you offer a sample before a mass order? Is it free or extra?
A: Yes, samples will be kindly arranged for your confirmation. Please contact us for detailed information.
5. Why choose us?
We leverage advanced technology for the production of TFN membranes.
We established China's first TFN coating production line, achieving stable mass production.
We have a 1000m2 test platform and advanced water testing technology.
We offer RO, NF,UNF, Special Membrane Elements, and SPEC Customized Membranes.
We provide competitive prices with excellent product quality and comprehensive services for our customers.

2016 - A visionary year for Proshare as the PhD team, led by the esteemed Dr. Lin Xiaofeng, an expert from the National Major Talent Introduction Project, returned to China, setting the stage for groundbreaking innovations.
2017 - Proshare proudly established its headquarters in Nanopolis Suzhou, the world's largest nanotechnology industrial application community, positioning itself at the forefront of technological advancements.
2018 - Proshare embarked on a new journey by setting up its first exclusive designed TFN coating production line, initiating mass production and marking a significant milestone.
2019 - PSI MEMBRANE® triumphantly replaced imported nanofiltration membrane products, finding stable applications in textile wastewater treatment, landfill leachate management, and high salt & COD wastewater solutions. Additionally, Proshare became the pioneering domestic supplier of high-end household nanofiltration water purifiers.
2020 - Proshare introduced the innovative SPEC customized membrane tailored for large environmental engineering enterprises, successfully serving a number of prestigious listed companies.
2021 - Proshare achieved a landmark accomplishment by becoming a qualified supplier for Sinopec, providing integrated TFN membrane solutions for the petrochemical industry, reinforcing its commitment to excellence.
2022 - The expansion continued as Proshare established subsidiaries in Shenzhen, Hunan Province, Fujian Province, and Jiangxi. This strategic move extended our services to customers and positioned us as the leading domestic supplier in emerging industries such as synthetic biology, lithium batteries, and copper foil manufacturing, among others.
2023 - Proshare achieved another remarkable milestone by becoming the first domestic supplier of seawater desalination membranes for international luxury cruise companies, solidifying our global footprint.
2024 - Looking ahead with anticipation to even greater achievements.