
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 |











Applications of Our Robust Water Treatment Equipment Membrane: - Seawater Desalination - Zero Discharge of Latex Wastewater - Copper Foil Industry Wastewater Treatment












1. Q: Are you a manufacturer or a trading company?
A:We are a manufacturer with our own factory, and we also collaborate with other factories using our proprietary technology.
2. Q: What is the lead time for mass production?
A: Our production time is 10-15 days for regular models.
3. Q: How do you guarantee product quality?
A: We meticulously inspect and control the entire process, from raw materials and production to the finished product and shipment.
4. Q: Can you offer samples before a bulk order? Are they free or extra?
A: Yes, samples will be thoughtfully arranged for your confirmation. Please contact us for more details.
5. Why choose us?
We utilize advanced technology for producing TFN membranes.
We have established China's first TFN coating production line, achieving stable mass production.
We have equipped a 1000m2 test platform with advanced water testing technology.
We offer RO, NF,UNF, Special Membrane Element, and SPEC Customized Membrane options.
We provide our customers with competitive pricing, exceptional product quality, and comprehensive services.

2016 - Proshare Innovation Suzhou Co., Ltd. saw the return of a highly esteemed PhD team led by Dr. Lin Xiaofeng, under the auspices of the National Major Talent Introduction Project.
2017 - Proshare established its headquarters in Nanopolis Suzhou, the world's largest nano-technology industrial application community, marking a significant milestone in our journey.
2018 - Proshare set up its first exclusively designed TFN coating production line and commenced mass production, enhancing our manufacturing capabilities.
2019 - PSI MEMBRANE® emerged as a groundbreaking product, successfully replacing imported nanofiltration membranes. This innovation found stable applications in textile wastewater, landfill leachate, high salt & COD wastewater, among various other environmental protection sectors. Additionally, it marked our entry as the first domestic supplier of high-end household nanofiltration water purifiers.
2020 - Proshare introduced SPEC customized membrane solutions tailored for large-scale environmental engineering firms, successfully serving numerous publicly listed companies.
2021 - Proshare became a qualified supplier for Sinopec, delivering integrated TFN membrane solutions catering to the specific needs of the petrochemical industry.
2022 - Proshare expanded its reach by establishing subsidiaries in Shenzhen city, Hunan Province, Fujian Province, and Jiangxi, thus extending our services to a wider customer base. We became the first domestic supplier to emerging industries including synthetic biology, lithium batteries, and copper foil sectors, among others.emerging industries such as synthetic biology, lithium batteries, and copper foil, and more.
2023 - Proshare achieved another milestone by becoming the first domestic supplier of seawater desalination membranes for international luxury cruise companies.
2024 - Exciting developments on the horizon. Stay tuned!