
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 |











Seawater Desalination: Experience the pinnacle of purity with our state-of-the-art solutions for converting seawater into freshwater. Zero Discharge of Latex Wastewater: Achieve complete sustainability with our innovative technology ensuring zero discharge in latex wastewater treatment. Copper Foil Industry Wastewater Treatment: Enhance your copper foil production with our advanced wastewater treatment, promoting environmental stewardship and efficiency.












1. Q: Are you a manufacturer or a trading company?
A:We are a manufacturer with our own factory. Additionally, we collaborate with other factories utilizing our proprietary technology.
2. Q: What is the lead time for mass production?
A: Our production lead time is 10-15 days for standard models.
3. Q: How do you guarantee product quality?
A: We meticulously inspect and control every stage from raw materials to production, and from finished products to shipment.
4. Q: Can you provide samples before a mass order? Are they free or do they cost extra?
A: Yes, we will happily arrange samples for your approval. Please contact us for further details.
5. Why choose us?
We leverage cutting-edge technology for the production of TFN membranes.
We have established China's first TFN coating production line, achieving consistent mass production.
We are equipped with a 1000m2 test platform and advanced water testing technology.
We provide RO, NF,UNF, specialized membrane elements, and customized SPEC membranes.
We offer our customers competitive prices, exceptional product quality, and comprehensive services.

2016 - Proshare PhD. team led by the illustrious Dr. Lin Xiaofeng, a distinguished expert of the National Major Talent Introduction Project, returned to China.
2017 - Proshare established its headquarters in Nanopolis Suzhou, the world's largest hub for industrial applications of nano technology.
2018 - Proshare inaugurated its first exclusively designed TFN coating production line and commenced mass production.
2019 - PSI MEMBRANE® successfully replaced imported nanofiltration membrane products. It was stably applied in treating textile wastewater, landfill leachate, high salt and COD wastewater, among other environmental protection fields. Proshare also became the premier domestic supplier of high-end household nanofiltration water purifiers.
2020 - Proshare launched its SPEC customized membrane tailored for large environmental engineering enterprises, successfully serving multiple listed companies.
2021 - Proshare became a qualified supplier for Sinopec, delivering integrated TFN membrane solutions for the petrochemical industry.
2022 - Proshare established subsidiaries in Shenzhen City, Hunan Province, Fujian Province, and Jiangxi, extending services to customers and emerging as the preeminent domestic supplier in new industries such as synthetic biology, lithium batteries, and copper foil , among others.
2023 - Proshare became the first domestic supplier of high-performance seawater desalination membranes for international luxury cruise companies.
2024 - Anticipating remarkable advancements soon.