
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 |











Pioneering Solutions for Diverse Needs: 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 dedicated manufacturer with our own factory. Additionally, we collaborate with other factories, integrating our unique technology to enhance production.
2. Q: What is the lead time for mass production?
A: Our standard production time is 10-15 days for regular models.
3. Q: How do you ensure product quality?
A: We meticulously inspect and control every step of the process, from raw materials to production, finished products, and shipment.
4. Q: Can you offer samples before a mass order? Are they free or is there an extra charge?
A: Yes, samples can be arranged for your confirmation. Please contact us for further details.
5. Why choose us?
Our advanced technology leads the production of TFN membranes.
We have pioneered the first TFN coating production line in China, achieving stable mass production.
Our facility includes a 1000m2 test platform and advanced water testing technology.
We offer a range of products including RO, NF,UNF, Special Membrane Elements, and SPEC Customized Membranes.
We provide competitive pricing, exceptional product quality, and comprehensive services to our customers.

2016 - A momentous year for Proshare, marked by the return of our illustrious PhD team led by Dr. Lin Xiaofeng, a distinguished expert from the National Major Talent Introduction Project.
2017 - Proshare HQ was established in Nanopolis Suzhou, celebrated as the world's largest hub for nano-technology industrial applications.
2018 - Proshare proudly inaugurated its first exclusively designed TFN coating production line, commencing mass production and paving the way for innovation.
2019 - A milestone year with the introduction of our PSI MEMBRANE®, which successfully supplanted imported nanofiltration membranes. This product is now reliably used in textile wastewater treatment, landfill leachate management, high salt & COD wastewater, and more. PSI MEMBRANE® also made us the premier domestic supplier of high-end nanofiltration water purifiers for households.
2020 - Proshare unveiled the SPEC customized membrane, tailored for large environmental engineering enterprises, securing service contracts with multiple listed companies.
2021 - Proshare achieved the status of a qualified supplier for Sinopec, offering integrated TFN membrane solutions specifically designed for the petrochemical industry.
2022 - Expansion continued with the establishment of subsidiaries in Shenzhen, Hunan, Fujian, and Jiangxi. This growth extended our services to a diverse clientele including emerging industries such as synthetic biology, lithium battery manufacturing, and copper foil production , among others.
2023 - A groundbreaking year as Proshare emerged as the first domestic supplier of seawater desalination membranes for international luxury cruise liners.
2024 - Anticipating remarkable advancements and continued success.