PSI MEMBRANE® Pro-SW-HR Seawater Reverse Osmosis (RO) Membrane,incorporatedfeaturing groundbreaking Thin Film Nanocomposite (TFN) technology, this product effectively reduces desalination costs while ensuring the delivery of exceptional water quality. It offers industry-leading salt rejection, making it ideal for high salinity seawater applications.
- Achieves a Remarkable 30% Increase in Flow:Harnessing the power of TFN Leading Technology, this membrane achieves a remarkable 30% increase in flow compared to traditional TFC membranes.
- Impressive High Rejection Rate at 99.85%:Leveraging advanced TFN technology on its surface, it ensures exceptional salt rejection even at lower pressures.
- Reduced Cleaning Frequency:The outstanding anti-fouling performance of the TFN membrane significantly minimizes the presence of microorganisms and inorganic pollutants, leading to a reduced need for frequent cleaning.
- Extensive Cleaning pH Range (1-13):Offers unparalleled cleaning performance, robustness, and durability, thanks to its extensive pH range for cleaning, combined with chemical resistance.
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. Experience exceptional performance with our product flow rate and salt rejection rate, meticulously tested under these conditions:
Pro-SW-HR: Immerse in precision with a feed water concentration of 32000 ppm as NaCl, maintained at a feed water pressure of 800 psi (5.5 MPa), and an optimal feed water temperature of 77°F (25°C). Enjoy a recovery rate of 8% per single membrane, ensuring top-tier efficiency.
Pro-SW-HF: Achieve superior results with a feed water concentration of 20000 ppm as NaCl, complemented by a feed water pressure of 800 psi (5.5 MPa) and a stable temperature of 77°F (25°C). Benefit from an impressive 15% recovery rate per single membrane, delivering high-performance purification.
2. Ensure seamless operation with a product flow variance of +/-20%;
3. The F34 model features a robust fiberglass-wrapped case with a mesh thickness of 34 mil. Explore additional options in case styles, mesh, and membrane elements to customize your needs.
Operating Condition:
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 allowable operating temperature is intricately related to both operating pressure and pH levels.
b. Be mindful that the maximum operating pressure is contingent upon the inlet water's temperature and pH. For instances where inlet water temperature surpasses 35°C and/or pressure exceeds 69 bar, please consult your account manager.
c. Continuously operate within the pH limits, which are dependent on the inlet water temperature and operating pressure, to maintain efficiency.
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: Revel in a super smooth surface and ultra-hydrophilic properties, setting a new standard in water purification technology.


Seawater Desalination: Experience the purity of desalinated water with our advanced solutions. Zero Discharge of Latex Wastewater: Achieve unparalleled environmental compliance through complete latex wastewater management. Copper Foil Industry Wastewater Treatment: Enhance your copper foil production with our efficient wastewater treatment systems.
New Energy Industry: Propel your energy projects with our state-of-the-art technology designed for the new energy era. Sulfuric Acid Purification and Recovery: Maximize your resources with our innovative sulfuric acid purification and recovery systems. Lithium Extraction from Salt Lake: Harness the potential of salt lakes with our cutting-edge lithium extraction technology.
We proudly hold a range of prestigious certifications that highlight our unwavering commitment to excellence: Health & Safety Management System Certificate, Environmental Management System Certificate, and the highly esteemed ISO9001 Quality System Certificate. These accolades reflect our dedication to top-tier quality and responsible practices.
Our innovation is backed by a portfolio of groundbreaking patents, including the Invention Patent of Membranes Production and the Invention Patent of Multi-Layer RO Membrane. Additionally, we possess Utility Model Patent Certificates, which underscore our ongoing commitment to pioneering technology and innovation in the field.
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 - Under the visionary leadership of Dr. Lin Xiaofeng, a renowned expert part of the National Major Talent Introduction Project, Proshare's PhD team triumphantly returned to China, marking the inception of an innovative journey.
2017 - Proshare proudly established its headquarters in the prestigious Nanopolis Suzhou, celebrated as the world's largest community dedicated to the industrial application of nanotechnology.
2018 - Proshare took a giant leap forward by setting up its first exclusively designed TFN coating production line, heralding the commencement of mass production to meet growing demand.
2019 -PSI MEMBRANE® technology revolutionized the market by seamlessly replacing imported nanofiltration membrane products. It achieved stable applications in complex fields such as textile wastewater treatment, landfill leachate management, and high salt & COD wastewater treatment. Moreover, Proshare emerged as the pioneering domestic supplier of sophisticated household nanofiltration water purifiers.
2020 - Proshare introduced the SPEC customized membrane, crafted specifically for sizable environmental engineering enterprises, successfully catering to several listed corporations.
2021 - Proshare attained the status of a qualified supplier for Sinopec, delivering integrated TFN membrane solutions tailored for the petrochemical industry, further solidifying its industry presence.
2022 - With the establishment of subsidiaries in Shenzhen, Hunan, Fujian, and Jiangxi, Proshare extended its reach to serve an even broader customer base. It became the leading domestic supplier in cutting-edge sectors including synthetic biology, lithium battery production, and copper foil manufacturing, among others.
2023 - Proshare achieved a significant milestone by becoming the first domestic supplier of seawater desalination membranes for prestigious international luxury cruise liners.
2024 - Anticipating further groundbreaking achievements and innovations on the horizon.