PSI MEMBRANE® Pro-SW-HR Seawater RO Membrane, IncorporatedCrafted with cutting-edge Thin Film Nanocomposite (TFN) technology, this product revolutionizes cost efficiency in desalination while ensuring unparalleled water quality. It offers industry-leading salt rejection, perfect for applications involving high salinity seawater.
- Achieve a 30% Increase in Flow:Our pioneering TFN Leading technology enables a remarkable 30% increase in flow compared to conventional TFC membranes.
- Exceptional Rejection Rate of 99.85%:The innovative TFN technology applied on the membrane's surface ensures superior salt-rejection capabilities at reduced pressures.
- Reduced Cleaning Frequency:Thanks to the TFN membrane's exceptional anti-fouling performance, there is a significant decrease in microorganism and inorganic contamination, resulting in a reduced need for frequent cleanings.
- Extensive Cleaning pH Range (1-13):Experience unmatched cleaning efficiency, robustness, and longevity due to its extensive cleaning pH range, paired with exceptional 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 measured under the following meticulous test conditions:
Pro-SW-HR: Feed water concentration precisely at 32,000 ppm as NaCl, with a feed water pressure of 800 psi (5.5 MPa), and a feed water temperature maintained at 77°F (25°C), achieving a recovery rate of 8% for each individual membrane.
Pro-SW-HF: Feed water concentration maintained at 20,000 ppm as NaCl, alongside a feed water pressure of 800 psi (5.5 MPa), and a consistent feed water temperature of 77°F (25°C), with an impressive recovery rate of 15% for each single membrane.
2. Allowable variation range of product flow is +/- 20%; ensuring reliable performance.
3. F34 is a durable fiberglass wrapped case featuring a mesh thickness of 34 mil. We offer additional types of cases, meshes, and membrane elements for diverse needs.
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 |
a. The maximum operating temperature is intricately linked to both operating pressure and pH levels.
b. The maximum allowable operating pressure is dependent on the temperature and pH of the inlet water. If the inlet water temperature surpasses 35°C and/or the inlet water pressure exceeds 69 bar, please consult your dedicated account manager.
c. The continuous operation pH limit is closely 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 |
Flux comparison showcasing a super smooth surface and ultra-hydrophilic properties, designed for superior efficiency.


Our advanced High Efficiency Proshare Seawater RO Membrane Filter Element is crafted to excel in diverse applications such as seawater desalination, ensuring the purity of water while achieving zero discharge in latex wastewater management. Additionally, it revolutionizes waste management in the copper foil industry, providing unparalleled wastewater treatment solutions.
In the ever-evolving new energy sector, our product plays a pivotal role by offering superior sulfuric acid purification and facilitating efficient recovery processes. Moreover, it is instrumental in the innovative extraction of lithium from salt lakes, reflecting Proshare Innovation's commitment to sustainable and cutting-edge technology solutions.
Distinguished Certifications: Our commitment to excellence is reflected in our array of prestigious certifications, including the Health & Safety Management System Certificate, ensuring top-tier workplace safety protocols. Moreover, our Environmental Management System Certificate underlines our dedication to sustainable and eco-friendly operational practices. Lastly, the ISO 9001 Quality System Certificate is a testament to our unwavering focus on delivering superior quality and reliability in every product we offer.
Pioneering Patents: We are proud to hold several groundbreaking patents that highlight our innovation in the field of membrane technology. These include our Invention Patent for membrane production, a hallmark of cutting-edge technology, and our Invention Patent for the multi-layer RO membrane, which showcases advanced design and efficiency. Additionally, our Utility Model Patent Certificates further emphasize our capability to deliver innovative solutions tailored to meet diverse needs.
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
2016 - In a remarkable homecoming, Proshare's Ph.D. team led by the distinguished Dr. Lin Xiaofeng, a celebrated expert from the National Major Talent Introduction Project, made their triumphant return to China.
2017 - Proshare proudly established its headquarters in the prestigious Nanopolis Suzhou, a cutting-edge hub recognized as the world's largest nanotechnology industrial application community.
2018 - Proshare inaugurated its pioneering, exclusively designed TFN coating production line and commenced mass production, ushering in a new era of innovation.
2019 -PSI MEMBRANE® achieved a breakthrough by successfully replacing imported nanofiltration membrane products. It became renowned for its stable application in diverse environmental protection fields, such as textile wastewater, landfill leachate, and high salt & COD wastewater. Moreover, it marked a milestone by becoming the first domestic supplier of high-end household nanofiltration water purifiers.
2020 - Proshare made a significant leap by launching SPEC customized membrane tailored for large environmental engineering enterprises, successfully serving numerous listed companies.
2021 - Proshare attained the status of a qualified supplier to Sinopec, offering integrated TFN membrane solutions for the petrochemical industry, further solidifying its leadership in innovation.
2022 - Proshare expanded its reach with the establishment of subsidiaries in Shenzhen City, Hunan Province, Fujian Province, and Jiangxi, enhancing service delivery to customers and becoming the first domestic supplier to emerging industries including synthetic biology, lithium battery, and copper foil, among others.
2023 - Proshare achieved another landmark by becoming the first domestic seawater desalination membrane supplier for prestigious international luxury cruise companies.
2024 - Expecting soon, Proshare is poised for even greater achievements.