PSI MEMBRANE® Pro-LP Ultra-low pressure reverse osmosis membrane element: A cutting-edge solution.Incorporated with revolutionary Thin Film Nanocomposite (TFN) Technology, which provides exceptional high flux capabilities at incredibly low operating pressures, resulting in significant cost reductions.
Key features include:
- 30% lower Pressures :Achieves lower energy costs and greater productivity, especially in cold water environments.
- 440ft2 Active Area:Significantly reduces equipment CAPEX with its impressive 440 ft2 active area, allowing for savings on elements and pumping.
- Wide Cleaning pH Range:Boasts the widest cleaning pH range (1-13), with an anti-fouling surface, ensuring effective cleaning performance, increased robustness and long-lasting durability.
Key applications include:
Softening, producing pure water, and water reuse across
pharmaceutical, electronics, power, petrochemical, refinery, food & beverage, municipal sectors, and more.
Product |
Effective Membrane area ft² (m²) |
Feed spacer thickness(mil) |
Product Flow Rate
g p d( m ³/d) |
Stable Salt Rejection
(%) |
Minimum desalting rate
(%)
|
Pro-LP-2540 |
28(2.6) |
32 |
750(2.8)
|
99.4 |
99.2 |
Pro-LP-4021 |
36(3.3) |
32 |
1000(3.8)
|
99.4 |
99.2 |
Pro-LP-4040 |
82(7.6) |
32 |
2800(10.6)
|
99.4 |
99.2 |
Pro-LP-8040 |
440(40) |
32 |
12000(45.9) |
99.4 |
99.2 |
1. The product's flow rate and salt rejection rate were meticulously tested under specific conditions to ensure peak performance:
Feed water concentration was precisely maintained at 1500 ppm as NaCl. The system operates under a feed water pressure of 225 psi (1.55 MPa) and a temperature of 77 °F (25 °C), achieving a recovery rate of 15% for a single membrane unit.
2. The product flow variation is tightly controlled within a range of +/-15%, ensuring consistent and reliable performance.
Operating Condition:
Operating Limits |
Unit |
Value |
Maximum operatingpressure |
psi(bar) |
600(41) |
Maximumfeed water temperature |
°F(°C) |
113(45) |
Maximum pressure drop |
bar |
1 |
ContinuousoperationpH range |
|
2~11 |
Cleaning PH range |
|
1~13 |
Maximum feed watere SDl15 |
|
5 |
Maximum influent turbidity |
ntu |
1 |
Maximum residual chlorine concentration of influent |
ppm |
<0.1 |
SIZE: mm
Model |
A |
B |
C |
Pro-LP-2540 |
1016 |
61 |
19 |
Pro-LP-4021 |
533 |
100 |
19 |
Pro-LP-4040 |
1016 |
100.3 |
19.1 |
Pro-LP-8040 |
1016 |
200 |
28.6 |
Industry Applications
Proshare Proshare has garnered invaluable expertise by delivering cutting-edge technical solutions to the industrial sectors where impeccably pure water is a non-negotiable necessity. Our solutions span industrial processes, wastewater treatment and reuse, and advanced resource recycling.
Our extensive engagement across various pivotal industry sectors is a testament to our versatility. We are deeply involved in sectors including petrochemical, mining, lithium extraction from salt lakes, lithium iron phosphate, and lithium battery recycling. Our reach extends to semiconductors, seawater desalination, reclaimed water management, leachate processing, synthetic biology, copper foil production, pharmaceuticals, and power generation.
Our expertise also encompasses steam boiler feed systems, food & beverage industries (such as mineral water bottling, soft drinks, and juice production), painting lines, dairy processing, ice cream manufacturing, laundries, hospitals, textiles, mechanical industries, and steel manufacturing.
Hospitality/Seawater and Brackish Water Desalination Applications
Harnessing Proshare's extensive experience in desalination technology, we have pioneered solutions in seawater desalination for civil uses, such as hotels and touristic resorts. Freshwater supply is critical for such infrastructures. Our R.O. seawater or brackish water desalination solutions adeptly meet the high-capacity demands of burgeoning tourist areas, ensuring their evolving water needs are met with precision.
Farming applications
Water is the cornerstone of ensuring animal health and achieving peak productivity in livestock, including cattle, chickens, sheep, and pigs. However, it's not just the volume of water that matters; the quality is equally crucial in promoting the desired growth in animals.
On farms, water can originate from a diverse array of sources, including water wells, civil water networks, and, to a lesser extent, rivers and other surface water sources.
While water from civil networks often contains free chlorine, other sources are typically laden with high concentrations of dissolved and suspended solids and pathogens. Reverse osmosis technology emerges as the most efficient solution to mitigate these detrimental effects. Farm water must undergo advanced technological treatment to reduce harmful substances that could impact animal health adversely.
Municipal and Civil use
We are proud to offer innovative and scalable solutions for the eco-friendly and efficient treatment of wastewater and effluents. Our robust portfolio, backed by patented technologies and insights from national-level experts and scientific research institutions, provides unmatched assurance to municipalities striving to meet stringent health and environmental standards. We are committed to an ethos of continuous improvement, driven by systematic feedback from our field engineers.
Our comprehensive know-how in sewage treatment forms a vital pillar of our support, empowering you to achieve your sustainable development goals. As a leader in sustainable development, our extensive range of solutions includes:
State-of-the-art sanitation technologies.
Innovative recovery methods for reusable materials present in wastewater.
Proshare PSI MEMBRANE Desalination RO Membrane Serves Desalination in Cruise Ship
Historically, the application of desalination membranes on luxurious international cruise ships has been dominated by a select few international brands. As these majestic vessels journey across diverse waters, the salinity and temperature of the feed water can vary significantly. Thus, the membranes must be exceptionally adaptable, ensuring reliable and stable water production to meet the rigorous demands of ocean-going passengers and crew alike.
The PSI MEMBRANE Pro-HR-SW seawater desalination membranes from Proshare have demonstrated unrivaled efficiency in both the desalination rate and the stability of water production. The quality of the water they produce meets the exacting standards required by luxury cruise ships, surpassing expectations.
This outstanding achievement led to the replacement of desalination membranes on three further cruise ships. Proshare's triumph in this endeavor distinguishes it as the first national brand to secure international luxury cruise ship orders for its desalination RO membranes.
A Complete Water Treatment Plant for Generating Ultra-Pure Water in the Semiconductor Industry
As is well known, the production of electronic-grade ultra-pure water requires membranes with extraordinarily high desalination rates, a standard only a select few brands can meet.
Leveraging Proshare's revolutionary TFN membrane technology and the extensive expertise of the TsingXi team in water treatment, our complete water treatment plant solutions exhibit exceptional performance in rejecting salts, boron, and TOC. The system's water output satisfies the stringent requirements of the semiconductor industry's production processes.
This favorable outcome has enabled us to secure the electronic ultra-pure water treatment project for a prestigious Japanese listed company.
Proshare Tailor-made TFN special acid-resistant and high-pressure membranes for Wastewater Treatment in the Petrochemical/Refining Sector, Truly Achieving Zero Liquid Discharge
Proshare Tailor-made TFN special acid-resistant and high-pressure membrane separation and concentration devices for wastewater treatment, specifically designed for ammonium sulfate desulfurization processes, have achieved an impressive wastewater concentration increase of up to 40 times. The concentration of ammonium sulfate in the concentrated water is greater than or equal to 20%, significantly reducing subsequent energy consumption for evaporation and crystallization. This translates to substantial cost savings for users, and the quality of the produced water consistently meets the corporate standard for circulating water make-up water defined by China Petroleum and Chemical Corporation (Q/SH 0628.2-2014), successfully achieving zero wastewater discharge.
This success has garnered additional orders from other subsidiaries within the group.
This membrane technology is also applicable to other high-temperature, highly acidic wastewater scenarios involving ammonium sulfate, such as in the energy, refining, chemical, and metallurgical industries. The latest advancements in ammonia desulfurization technology, when combined with carbon capture, support new energy consumption models and the development of a green industry chain, aligning with the national 'dual-carbon' policy.
Proshare TFN-SEP Customized NF Membrane Dramatically Enhances Lithium Permeate Rate up to 96.6%with a retention rate of Mg2+ exceeding 99%, and aretention rate of Ca2+ surpassing 98%
Addressing the Technical Bottlenecks of Membrane Separation (Nanofiltration/Reverse Osmosis) in the Extraction of Lithium from Salt Lakes, where challenges are posed by membranefouling andscaling.ow selectivity less than 80%,high energy consumption accounts for 30% to 40% of the total cost,short membrane lifespan of 2 to 3 years.
Proshare PSI MEMBRANE TFN-SEP Customized NF/RO Membrane
which has demonstrated superior performance data in alithium extraction project situated in Lakkor Tso Salt Lake in Tibet, China.:
By utilizing a 2-stage Nanofiltration process along with a 1-stage RO, we achieve production water featuring Mg2+ at 2.9mg/L, Ca2+ at 2.25mg/L, with an impressive retention rate of Mg2+ exceeding 99%, Ca2+ surpassing 98%, and a lithium permeate rate of 96.6%, and the flux nearing 20LMH under the operating pressure of 1MPa.Our proven membrane technology is both environmentally and economically beneficial, enhancing product purity and quality.

Proshare Pioneering Team's Breakthrough in Next-Generation Reverse Osmosis Membrane Technology
Proshare team has ingeniously crafted a new era of reverse osmosis membranes, utilizing cutting-edge polymer interface nano-self-assembly technology. This innovation propels us beyond the constraints of traditional membrane development with two pivotal advancements:
Revolutionary Ultra-Thin Separation Layer: Through state-of-the-art polymer interface nanotechnology, our team has remarkably minimized the separation layer's thickness to a groundbreaking level-threefold thinner than the classic polyamide thin film (previously restricted to 100 nm). This innovation dramatically boosts water flux, leading to substantial permeability enhancements.
Supreme Enhanced Performance: The infusion of nanoparticles and specialized hydrophilic polymers has driven monumental advancements in the membrane's hydrophilicity, anti-fouling capacity, durability, and oxidation resistance.
In stark contrast to traditional polyamide reverse osmosis membranes, Proshare's innovation marks breakthroughs across four essential dimensions:
Self-Assembled Nanocomposite Films of Excellence
Masterful integration of nano-scale precision control with nano-doping modification allows the creation of ultra-thin, impeccably ordered separation layers through polymer interface nanotechnology. This state-of-the-art method transcends the limitations of conventional polyamide membranes in terms of thickness uniformity and material diversity.
Enhanced Water Flux Coupled with Superior Energy Efficiency
By perfecting the layer-by-layer self-assembly process, we attain precise control over the functional layer thickness, achieving a remarkable 3x reduction compared to standard membranes. This results in >3x amplified water flux and a compelling 30% reduction in energy consumption.
Innovative Polymer Materials Featuring Exceptional Chemical Stability
Transcending traditional polyamide, our team harnesses advanced hydrophilic polymers such as modified polysulfones and ceramic-organic hybrids. These materials exhibit extraordinary oxidation resistance (capable of withstanding 10 ppm chlorine exposure) and robust pH tolerance (maintaining stability across a pH range of 1-12).
Groundbreaking Anti-Fouling Surface Engineering
The ultra-hydrophilic surface (contact angle <10°) coupled with nanoparticle reinforcement significantly reduces the propensity for organic fouling by 50%, thus extending chemical cleaning cycles from 3 months to 6 months and slashing maintenance costs by 40%.
Our Commitment to Excellence: Health & Safety Management System Certificate, Environmental Management System Certificate, and the ISO9001 Quality System Certificate - the pinnacle of quality assurance!
Pioneering Innovation: Invention Patent for Membrane Production and the Revolutionary Invention Patent of Multi-Layer RO Membrane - setting new standards in filtration technology! RoHS Compliance Certificate: Our Promise to Sustainable and Environmentally-Friendly Products!
Proshare Innovation Suzhou Co., Ltd. stands as a beacon of innovation in the realm of water treatment, being a prestigious national high-tech enterprise. Our focus is on the pioneering R&D and industrialization of third-generation thin-film nanocomposite (TFN) membranes, expertly designed for reverse osmosis (RO), nanofiltration (NF), and material separation applications. Established in 2017 by an elite team of internationally experienced doctoral experts, spearheaded by the illustrious Dr. Lin Xiaofeng, a luminary of national-level talent programs, Proshare Innovation has proudly risen as China's exclusive domestic producer of TFN membranes.
Core Competencies
Technological Innovation: We have boldly pioneered the integration of TFN technology into nanofiltration membranes, achieving unparalleled independence in R&D and localized manufacturing of both membranes and the cutting-edge equipment that makes them possible.
Intellectual Property: Our robust portfolio includes over 31 patents, ensuring performance metrics that meet and exceed international benchmarks, effectively substituting foreign products with superior domestic solutions.
Production Capacity: Our operations thrive within a state-of-the-art 2,000 m² R&D hub, complemented by an expansive 15,000 m² production facility.
Funding: With successful Pre-A Round (2023) and A Round (January 2025) financing, we have garnered substantial backing from the Suzhou Industrial Park Science Innovation Fund and Yong Sheng Capital.
Market Recognition: Proudly distinguished as a preferred supplier for a multitude of renowned listed environmental engineering firms and prominent state-owned enterprises.
Leadership:Dr. Lin Xiaofeng, an esteemed Ph.D. alumnus of the University of Strasbourg, France, is celebrated with provincial and national talent accolades (including Suzhou Leading Talent, Jiangsu Dual Innovation Talent) and leads our ongoing R&D triumphs in TFN membrane industrialization.
WHY US?
FAQ:
(1) Q: Why Choose Our Company?
A: We offer comprehensive water treatment solutions
with revolutionary Thin Film Nanocomposite (TFN) membrane sheets, membrane elements, and water treatment system solutions tailored for our customers.
A: Our customization capabilities
are backed by national expert teams and the esteemed Tsinghua University Suzhou Environmental Innovation, ensuring excellence at every turn.
A: We are dedicated to ensuring quality and delivering tangible value.
Our premium solutions not only meet your needs but also provide significant ROI. We extend beyond mere solutions by offering training, support, and services, leveraging our local expertise for global impact. and global markets.
A: In collaboration with our customers
we draw inspiration from their unwavering commitment to delivering the most invaluable resource: clean water. Together, we thrive towards a water-optimized world.
(2) Q: Are you a manufacturer or Trade Company?
A: We are a distinguished manufacturer with our proprietary International Trade Department, allowing us to truly understand customer needs and offer competitive pricing.
(3) Q: How's the after-sale service?
A: Our after-sale excellence is ensured by engineers available for overseas service under the guidance of merchandisers and translation support.
(4) Q: How about the quality?
A: We assure impeccable quality with main sub-assemblies and raw materials sourced from leading companies. Our proprietary R&D team develops key components, reinforced by professional assembly and stringent quality testing systems to meet your highest quality standards.
(5) Q: Product /Quality Guarantee and After Sale Service?
A: You can enjoy a comprehensive 1-year warranty that aligns with international standards. Our dedicated team is available online 24/7 to ensure that any inquiries about our state-of-the-art machinery are addressed promptly and efficiently. Don't hesitate to reach out for any assistance.
(6) Q: Certification?
A: Tsingxi proudly holds ISO9001, ISO14001, and ISO45001 certifications, showcasing our commitment to quality, environmental management, and occupational health and safety. Our products are meticulously crafted to adhere to the rigorous technical standards of 3C and CE, and are duly certified by the Industry Administration Authority. Tsingxi remains dedicated to advancing as a formidable high-tech entity within the dynamic global market of water treatment solutions.