PSI MEMBRANE® Introducing the Pro-LP Ultra-low pressure reverse osmosis membrane element,meticulously crafted with state-of-the-art Thin Film Nanocomposite (TFN) Technology. This exceptional technology ensures remarkable high flux at ultra-low operating pressures, significantly reducing costs and enhancing efficiency.
Distinguished Key Features:
- 30% lowerpressure Performance :Significantly reduces energy expenditure and boosts productivity, particularly in colder water scenarios.
- Expansive 440ft2 Active Area:Optimizes equipment CAPEX with element and pumping savings, thanks to the vast 440 ft2 active area, resulting in streamlined operations.
- Extensive Cleaning pH Range:Features an unparalleled cleaning pH range (1-13) with an anti-fouling surface, ensuring superior cleaning performance, unmatched robustness, and lasting durability.
Primary Key Applications:
Ideal for softening, producing pure water, and water reuse across diverse sectors such as
pharmaceuticals, electronics, power, petrochemical, refinery, food & beverage, municipal, 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 flow rate and salt rejection rate are evaluated under carefully controlled testing conditions:
Specifically, the feed water concentration is maintained at 1500 ppm as NaCl with a feed water pressure of 225 psi (1.55 MPa). The feed water temperature is consistently kept at 77 °F (25 °C), and a recovery rate of 15% is targeted for a single membrane application.
2. There is a permissible variation range in product flow of +/-15%;
Operating Conditions:
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 diligently garnered invaluable expertise through its innovative technical solutions tailored for the industrial sector. Our membranes play a pivotal role in ensuring the purity of water essential for diverse industrial processes, as well as in wastewater treatment, reuse, and resource recycling.
We are proudly engaged in a myriad of key industry sectors, including petrochemical, mining, lithium extraction from salt lakes, lithium iron phosphate & lithium battery recycling, semiconductors, seawater desalination, reclaimed water treatment, leachate management, synthetic biology applications, copper foil production, pharmaceuticals, and power generation.
Our versatile solutions also cater to steam boiler feeding, food & beverages sectors such as mineral water bottling, soft drinks, and juices, along with applications in painting lines, dairies, ice creams, laundries, hospitals, textiles, mechanical industries, and steel companies.
Hospitality/Seawater and Brackish Water Desalination Applications
Proshare's extensive experience in desalination technology has been adeptly applied to supplying fresh water for civil use in hotels and tourist resorts. Our R.O. systems offer a viable solution to meet the escalating water demands of burgeoning tourist areas, ensuring a reliable supply of fresh water for these vital infrastructures.
Farming applications
Access to high-quality water is crucial for sustaining the health and productivity of farm animals, such as cattle, chickens, sheep, and pigs. The purity of the water directly impacts their growth and performance.
Farm water sources are diverse, including water wells, civil water networks, and occasionally rivers and other surface sources.
Water from civil networks, although treated with chlorine, often contains high levels of dissolved solids and pathogens from other sources. Reverse osmosis technology stands out as the most effective method to mitigate these contaminants, ensuring water safety for farm use by removing harmful substances that could affect animal health.
Municipal and Civil use
We offer groundbreaking and scalable solutions for the effective and sustainable management of wastewater and effluents. Our extensive portfolio of patented technologies, along with collaboration with national-level experts and scientific research institutions, ensures compliance with strict health and environmental standards. We continuously refine our sanitation systems by integrating feedback from our engineers in the field.
Our deep expertise in sewage treatment is foundational to helping you achieve sustainable development goals. As a leader in sustainable solutions, we offer an expansive array of options including:
Advanced sanitation technologies.
Innovative recovery solutions for reusable materials from wastewater.
Proshare PSI MEMBRANE Desalination RO Membrane Pioneering Solutions in Desalination for Luxurious Cruise Liners
Historically, the realm of desalination membranes for international luxury cruise ships has been monopolized by a select few global brands. With the voyage, the feed water's quality, including its salinity and temperature, shifts. Thus, these membranes must seamlessly adapt to diverse conditions, ensuring consistent and reliable water output to fulfill the high demands of ocean-going vessels.
The innovative PSI MEMBRANE Pro-HR-SW seawater desalination membranes excelled with exceptional desalination rates and unwavering water production stability. The superior quality of water produced aligned perfectly with the rigorous standards set for luxury cruise ships.
This impressive achievement catalyzed the adoption of these desalination membranes across three more cruise ships. Proshare's groundbreaking success positions it as the premier national contender to secure international luxury cruise ship orders for these advanced desalination RO membranes.
B Comprehensive Water Treatment Facility for Delivering Ultra-Pure Water in the Semiconductor Sector
As universally acknowledged, electronic-grade ultra-pure water demands extraordinarily high standards in membrane desalination capabilities, a benchmark met by only a few brands worldwide.
Harnessing Proshare's pioneering TFN membrane technology, coupled with TsingXi team's extensive expertise in the water treatment sector, our comprehensive water treatment facility solutions for ultra-pure water exhibited outstanding performance in rejecting salt, boron, and TOC. The system's water output has exceeded the stringent production requirements of the semiconductor industry.
This outstanding outcome paved the way for securing the electronic ultra-pure water treatment project from a renowned Japanese listed corporation.
Proshare Custom Designed TFN Special Acid-Resistant and High-Pressure Membranes for Wastewater Treatment in the Petrochemical and Refining Industry to Truly Achieve Zero Liquid Discharge
Proshare Custom Designed TFN Special Acid-Resistant and High-Pressure Membranes for Separation and Concentration in wastewater treatment with ammonium sulphate desulphurisation, achieving concentration levels up to 40 times higher, with ammonium sulphate concentrations ≥ 20%. This drastically reduces energy consumption for subsequent evaporation and crystallization processes, ensuring substantial cost savings for users. The consistent water quality aligns with the China Petroleum and Chemical Corporation's corporate standard Q/SH 0628.2-2014 for circulating water make-up, achieving true zero wastewater discharge.
Such impressive results have garnered further orders from other subsidiaries within the group.
These membranes are also suited for other high-temperature, highly acidic wastewater scenarios involving ammonium sulphate, including the energy, refining, chemical, and metallurgical industries. The synergy with the latest ammonia desulphurisation technology and carbon capture initiatives supports new energy efficiencies and the growth of the green industry chain, aligning with the national 'dual-carbon' policy.
Proshare TFN-SEP Tailored NF Membrane Significantly Elevates Lithium Permeate Rate to an Impressive 96.6%,while achieving a retention rate for Mg2+ > 99%, anda retention rate for Ca2+ > 98%.
Overcoming Technical Challenges in Membrane Separation (Nanofiltration/Reverse Osmosis) for Lithium Extraction from Salt Lakes, confronted by membrane fouling,In the realm of water systems, we recognize the challenges posed by low selectivity. This often results in inefficiencies, as it causes selectivity to be less than 80%, leading to increased energy demands.High energy consumption can significantly energy consumption accounts for 30%-40% of total operational costs. Moreover,short membrane lifespan membrane lifespan averages just 2-3 years.
Enter Proshare PSI MEMBRANE, featuring the TFN-SEP Customized NF/RO Membrane. This innovative product
demonstrated superior performance data in a significant lithiumithium extraction project strategically positioned in Lakkor Tso Salt Lake , Tibet, China. Here,
with the deployment of just a 2-stage Nanofiltration process coupled with 1-stage RO, we achieved remarkable results: producing water containing Mg2+ at 2.9mg/L and Ca2+ at 2.25mg/L. This process showcases a retention rate for Mg2+ exceeding 99% and Ca2+ surpassing 98%, with lithium permeate rate reaching an impressive 96.6%. The flux remains nearly 20LMH, even under a pressure of 1MPa.Our proven membrane technology is not only environmentally and economically friendly, but also significantly enhances product purity and quality, setting a new standard in the industry.

Proshare Revolutionary Advances by Our Team in Cutting-Edge Reverse Osmosis Membrane Technology
Proshare team has pioneered the development of a groundbreaking new generation of reverse osmosis membranes utilizing polymer interface nano-self-assembly technology. This innovation surpasses the traditional boundaries of reverse osmosis membrane development through two remarkable advancements:
Ultra-Thin Separation Layer: Through the use of sophisticated polymer interface nanotechnology, the team has remarkably reduced the thickness of the separation layer to a fraction of its previous size-up to three times thinner than the conventional polyamide thin film, which was previously capped at 100 nm. This remarkable breakthrough amplifies water flux, leading to a notable enhancement in permeability.
Augmented Performance: The strategic introduction of nanoparticles coupled with specialized hydrophilic polymers has resulted in transformative advancements in the membrane's hydrophilicity, anti-fouling capability, durability, and oxidation resistance, setting new industry standards.
Compared to traditional polyamide reverse osmosis membranes, Proshare's cutting-edge innovation makes significant breakthroughs in four essential dimensions:
Self-Assembled Nanocomposite Films
By integrating nano-scale precision control with nano-doping modification, we have achieved the creation of ultra-thin, highly ordered separation layers using polymer interface nanotechnology. This sophisticated approach transcends the limitations of conventional polyamide membranes regarding thickness uniformity and material diversity.
Boosted Water Flux and Energy Efficiency
With the optimized layer-by-layer self-assembly process, the functional layer thickness is meticulously controlled, realizing a threefold reduction compared to traditional membranes. The results are astounding, with >3x higher water flux and a 30% decrease in energy consumption.
Innovative Polymer Materials with Exceptional Chemical Stability
Advancing beyond polyamide, our team employs cutting-edge hydrophilic polymers (e.g., modified polysulfones) and ceramic-organic hybrids. These materials exhibit unparalleled oxidation resistance (capable of withstanding 10 ppm chlorine exposure) and pH resilience (maintaining stability across a broad pH range of 1-12).
Anti-Fouling Surface Engineering
Featuring a superhydrophilic surface (contact angle <10°) reinforced with nanoparticles, this membrane reduces the tendency for organic fouling by 50%, thereby extending chemical cleaning intervals from every 3 months to every 6 months and decreasing maintenance expenditure by 40%.
Our commitment to excellence is reflected in our prestigious certifications: Health & Safety Management System Certificate, Environmental Management System Certificate, and the renowned ISO9001 Quality System Certificate. Each of these accolades underscores our dedication to maintaining the highest standards in innovation and product integrity.
We proudly hold the Invention Patent for Membrane Production and the Invention Patent for Multi-Layer RO Membrane. These patents are testaments to our groundbreaking advancements and pioneering spirit in the field of water purification technology. Our Proshare Ultra Low Pressure RO Membrane is fully RoHS COMPLIANCE certified, ensuring that our products meet rigorous environmental and safety standards, prioritizing the well-being of both our planet and our customers.
Proshare Innovation Suzhou Co., Ltd. is a prestigious national high-tech enterprise, leading the frontier in the R&D and industrialization of third-generation thin-film nanocomposite (TFN) membranes. These membranes are pivotal for reverse osmosis (RO), nanofiltration (NF), and material separation applications. Established in 2017 by an elite team of overseas-returned doctoral experts, under the visionary leadership of Dr. Lin Xiaofeng, a distinguished recipient of national-level talent accolades, Proshare is proudly recognized as China's exclusive domestic manufacturer of TFN membranes.
Core Competencies
Technological Innovation: At the forefront of innovation, we have pioneered the integration of TFN technology into nanofiltration membranes, showcasing our prowess in fully autonomous R&D as well as localized production of both the membranes and their manufacturing equipment.
Intellectual Property: With an impressive portfolio of over 31 patents, our membrane performance not only meets but exceeds international benchmarks, effectively supplanting once-monopolized foreign products.
Production Capacity: Our infrastructure boasts a sophisticated 2,000 m² R&D facility complemented by a 15,000 m² state-of-the-art production base.
Funding: We have successfully completed our Pre-A Round (2023) and A Round (January 2025) financing, with robust support from esteemed entities like the Suzhou Industrial Park Science Innovation Fund and Yong Sheng Capital.
Market Recognition: Proudly designated as a preferred supplier, we serve an array of listed environmental engineering firms and esteemed state-owned enterprises.
Leadership:Dr. Lin Xiaofeng, an esteemed Ph.D. graduate from the University of Strasbourg in France, has been honored with both provincial and national talent awards, such as the Suzhou Leading Talent and Jiangsu Dual Innovation Talent. Dr. Lin spearheads our R&D advancements in the industrialization of TFN membranes.
WHY US?
FAQ:
(1) Q: Why Choose Our Company?
A: Comprehensive water treatment solutions
Experience revolutionary offerings through our Thin Film Nanocomposite (TFN) membrane sheets, membrane elements, and holistic water treatment system solutions tailored precisely for you.
A: Tailored customization capabilities
Supported by national expert teams and the innovative prowess of Tsinghua University Suzhou Environmental Innovation, we tailor solutions to meet unique needs.
A: Uncompromising quality and unparalleled value.
Our premium solutions ensure exceptional quality and significant ROI for our customers. We are committed to offering comprehensive training, support, and services, translating our local expertise for a global market. training, support, and services, and bring our local expertise to global markets.
A: Collaborative growth with our clients
Inspired by our clients, we strive to provide the most invaluable resource - clean water. Together, we thrive towards a world optimized for water.
(2)Q: Are you a manufacturer or Trade Company?
A: We proudly operate as a professional manufacturer with our own International Trade Department, enabling us to deeply understand customer needs and offer competitively reasonable prices.
(3) Q: How's the after-sale service?
A: We offer exceptional after-sales service, with engineers available to service overseas, ensuring ease of communication through merchandiser's supervision and translation.
(4) Q: How about the quality?
A: Our commitment to quality is unmatched. All main sub-assemblies and raw materials are sourced from top-tier companies. Key components are innovatively researched and developed by our expert staff. Our professional assembly line work and rigorous quality testing system guarantee your high-quality standards.
(5) Q: Product /Quality Guarantee and After Sale Service?
A: Enjoy peace of mind with our 1-year warranty that adheres to International standards. Our dedicated team is at your service 24/7, ensuring you receive prompt assistance for any inquiries concerning our machines. Feel free to reach out to us at any time, and experience our commitment to excellent customer support.
(6) Q: Certification?
A: Tsingxi proudly upholds the highest quality standards, being an ISO9001, ISO14001, and ISO45001 certified company. Our products are meticulously designed to comply with the stringent technical standards of both 3C and CE. Rest assured, all of our offerings have received certification from the Industry Administration Authority, underscoring our dedication to quality and safety. Tsingxi remains committed to advancing as a leading high-tech company in the global water treatment market, continuously innovating to provide cutting-edge solutions worldwide.