Psi Membrane 75 Domestic Water Treatment System Reverse Osmosis Membrane for Drinking

• Customization: Available
• Membrane Type: Spiral
• Type: RO
• Model NO.: Pro-LP-1812-75
• Stable Salt Rejection: 97%
• Gpd(Gallon): 75
• Usage: Household, Commercial
• Core Technology: Thin Film Nanocomposite
• Warranty: 12months
• Capacity: 50, 000PCS/Month
• Delivery Time: 10-15 Days
• Feature: Durability, Anti-Fouling, Anergy Saving
• Transport Package: Carton Box
• Specification: 1.75 Inch
• Trademark: PSI MEMBRANE
• Origin: China
• HS Code: 8421999090
• Production Capacity: 600, 000PCS/Year

Product Description

Product Description

 

About this items:
Enjoy Your Water with Confidence: Our is able to remove up to 99% of over 1,000 contaminants from your water, including lead (removes up to 98% of lead), chlorine, fluoride, arsenic, asbestos, calcium, sodium and more.

Top-notch Quality :  Our Reverse Osmosis Membrane is made of food-grade high capacity material that provides high packing density to remove contaminants. it only allows water molecules to squeeze through and virtually nothing else. 
Energy Saving: Low Pressure Operation (70 psi) for Lower Power Consumption and Reduced Operating Costs.
Wide TDS Range:Can work in salinitiny water up to TDS 3000ppm and maintain a stable rejection rate.
Stable Rejection Rate 97% : Upgrate formulas on membrane sheet,guarantee stalbe rejection rate with wide range TDS.
Peace of Mind Customer Service :  We stand behind our products and if you encounter any problems with any of our products please reach outc to us immediately. We are happy to help!
Key applications:
Ideal for residential,household reverse osmosis systems and other water purifying devices in hospitals and laboratories.
Municipal water purification. 
Food and Beverage industries.
Farms,Restaurant, Retail
Garment Shops, Building Material Shops, Manufacturing Plant, Machinery Repair Shops, Printing Shops, Construction works , Energy & Mining, Advertising Company, water plant.
 

 

Product Parameters

 

Model	A	B	C	D	E	Average Permeate Flow gpd (m³/d)	Average Salt Rejection  %	Test conditions
	Inch (mm )	Inch  (mm )	Inch  (mm )	Inch  (mm )	Inch   (mm )			NaCl	Pressure	Temperature	pH	Recovery Rate
Pro-LP-1812-50	1.75 (44.5)	0.72 (18.2)	0.87 (22.0)	0.87 (22.0)	12.00 (297.5)	≥50(0.19)	97	350mg/L	70psi	25°c	6.5~7.5	50%
Pro-LP-1812-75	1.75 (44.5)	0.72 (18.2)	0.87 (22.0)	0.87 (22.0)	12.00 (297.5)	≥75(0.29)	97	350mg/L	70psi	25°c	6.5~7.5	50%
Pro-LP-2012-100	1.81  (46.0)	0.72    (18.2)	0.87    (22.0)	0.87    (22.0)	12.00  (297.5)	≥100(0.38)	97	350mg/L	70psi	25°c	6.5~7.5	50%
Pro-LP-2012-150	1.81  (46.0)	0.72    (18.2)	0.87    (22.0)	0.87    (22.0)	12.00  (297.5)	≥150(0.57)	97	350mg/L	70psi	25°c	6.5~7.5	50%
Pro-LP-2012-400	1.85 (47.0)	0.72    (18.2)	0.78 (20.0)	0.78 (20.0)	12.00  (297.5)	≥400(1.52)	97	350mg/L	70psi	25°c	6.5~7.5	50%
Pro-LP-2812-200	2.68 (68.0)	0.72 (18.2)	0.87 (22.0)	0.87 (22.0)	12.00 (297.5)	≥200(0.76)	97	350mg/L	70psi	25°c	6.5~7.5	50%
Pro-LP-2812-300	2.68 (68.0)	0.72 (18.2)	0.87 (22.0)	0.87 (22.0)	12.00 (297.5)	≥300(1.14)	97	350mg/L	90/100psi	25°c	6.5~7.5	50%
Pro-LP-3012-400	2.68 (68.0)	0.72 (18.2)	0.87 (22.0)	0.87 (22.0)	12.00 (297.5)	≥400(1.52)	97	350mg/L	100psi	25°c	6.5~7.5	50%
Pro-LP-3012-600	2.91 (74.0)	0.72 (18.2)	0.87 (22.0)	0.87 (22.0)	12.00 (297.5)	≥600(2.28)	97	350mg/L	100psi	25°c	6.5~7.5	50%
Pro-LP-3013-400	2.68 (68.0)	0.72 (18.2)	0.78 (20.0)	0.78 (20.0)	13.00 (333.0)	≥400(1.52)	97	350mg/L	100psi	25°c	6.5~7.5	50%
Pro-LP-3013-500	2.68 (68.0)	0.72 (18.2)	0.78 (20.0)	0.78 (20.0)	13.00 (333.0)	≥500(1.90)	97	350mg/L	100psi	25°c	6.5~7.5	50%
Pro-LP-3013-600	2.68 (68.0)	0.72 (18.2)	0.78 (20.0)	0.78 (20.0)	13.00 (333.0)	≥600(2.28)	97	350mg/L	100psi	25°c	6.5~7.5	50%
Pro-LP-3113-800	3.11 (79.0)	0.72 (18.2)	0.78 (20.0)	0.78 (20.0)	13.00 (333.0)	≥800(3.04)	97	350mg/L	110psi	25°c	6.5~7.5	30%
Pro-LP-3213-900	3.11 (79.0)	0.72 (18.2)	0.78 (20.0)	0.78 (20.0)	13.00 (333.0)	≥900(3.42)	97	350mg/L	110psi	25°c	6.5~7.5	30%
Pro-LP-3213-1000	3.11 (79.0)	0.72 (18.2)	0.78 (20.0)	0.78 (20.0)	13.00 (333.0)	≥1000(3.80)	97	350mg/L	110psi	25°c	6.5~7.5	30%
Pro-LPHR-1812-75	1.75 (44.5)	0.72 (18.2)	0.87 (22.0)	0.87 (22.0)	12.00 (297.5)	≥75(0.29)	98	350mg/L	90psi	25°c	6.5~7.5	15%
Pro-LPHR-2012-200	1.85 (47.0)	0.72 (18.2)	0.78 (20.0)	0.78 (20.0)	12.00 (297.5)	≥200(0.76)	98	350mg/L	90psi	25°c	6.5~7.5	15%
Pro-LPHR-3012-400	2.91 (74.0)	0.72 (18.2)	0.87 (22.0)	0.87 (22.0)	12.00 (297.5)	≥400(1.52)	98	350mg/L	110psi	25°c	6.5~7.5	15%
Pro-LPHR-3013-400	2.68 (68.0)	0.72 (18.2)	0.78 (20.0)	0.78 (20.0)	13.00 (333.0)	≥400(1.52)	98	350mg/L	110psi	25°c	6.5~7.5	15%

Due to variations in feedwater quality, membrane elements under standard test conditions may have a 15% deviation in permeate flow
The stated product performance is based on data collected after 30 minutes of operation at the following test conditions
SIZE:mm/Inch

 

Recommended Operating Conditions:

Operating Limits	Unit	Value
Maximum operating pressure	psi (MPa)	125(0.86)
Maximum feed water temperature	°F (°C)	113(45)
Continuous operation pH range		3-10
Cleaning PH range		2-11
Maximum feed water SDI15		5
Maximum residual chlorine concentration of influent	ppm	<0.1

Geneal Handing Procedures:

Store in a cool and dry place (below 45°C) away from sunlight.

Permeate from the first hour of operation should be discarded.

Keep elements moist at all times after initial wetting.

To prevent microbial growth in the Wet Membrane Element, it is recommended to wash it with a 1.0% Sodium Metabisulfite (food grade) solution, followed by vacuum-bag packing the
Membrane Element and storing it in a cardboard box.

Only use chemicals compatible with the membrane elements and components. Bright Star Water will not accept any responsibility from the use of incompatible chemicals. 
                 

Main Application

Industry Applications

 

Proshare has earned its valuable experience by proposing its technical solutions to the industrial sector, where absolutely pure water is needed for the various industrial processes,waste water treatment and reuse ,resource recycling.
We engage in main industry sector including petrochemical,mining, lithium extraction from salt lake,lithium Iron phosphate & lithium battery recycling, semiconductor ,sea water  desalinization,reclaimed,leachate,syntheticbiology,copperfoil,pharmaceutical,and power.
Also such as steam boilers feeding, food & beverages (mineral water bottling, soft drinks, juices), painting lines, dairies, ice creams, laundries, hospitals, textile, mechanical industries, steel companies, etc.

Hospitality/Seawater and Brackish Water Desalination Applications
 

Proshare wide experience in desalination technology was applied also in the field of water desalination for civil use in hotels and touristic resorts. Fresh water supply is essential for such infrastructures and R.O. sea water or brackish water desalination is an offered alternative solution that can cover the required capacities of the rapidly expanding touristic areas and their increasing water demands.

Farming applications

The water is essential in order to guarantee the fitness of the animals (e.g. cattle, chickens, sheep, pigs) and to achieve the best productive animals performance. However, not only the quantity of the water can influence the animals desired growth but also the quality of the water.
The water used in the farm can have its origin from a number of different sources, such as water wells, civil water networks and to a less extent from rivers and other superficial sources.
Excluding the water from civil networks (containing free chlorine), the other sources usually have a high concentration of dissolved and suspended solids and pathogens. Consequently,the reverse osmosis technology has demonstrated to be the most efficient technology to reduce their negative effects, the contaminated water used in the farms, should undergo technological treatment in order to reduce substances that can be harmful for the animals.

Municipal and Civil use 

 We provide innovative and scalable solutions to customers - for the efficient and sustainable treatment of their wastewater and effluents. Our broad portfolio of patented technologies and national-level experts and scientific research institution provide peace of mind for all municipalities subject to strict health and environmental standards. We seek to continuously improve our sanitation systems through the gathering of systematic feedback from our engineers in the field. 
Our sewage treatment know-how is one of the key pillars of the expertise we provide to support you to reach your sustainable development goals.As a major player in sustainable development, we have a wide range of solutions including:
Sanitation technologies.
Recovery of reusable materials wastewater.

Successful Cases Reference

 

Proshare PSI MEMBRANE Desalination RO Membrane Serves Desalination in Cruise Ship

The application of desalination membranes on international luxury cruise ships has historically been dominated by a few international brands. The quality of feed water, such as salinity and temperature, fluctuates with the cruise ship's journey. Therefore, the membranes must adapt to different conditions while ensuring stable water production to meet the needs of ocean-going vessels.

 PSI MEMBRANE Pro-HR-SW seawater desalination membranes demonstrated superior performance in both desalination rate and stable water production. The water quality produced by these membranes met the stringent requirements of the cruise ship.

This remarkable result led to the replacement of desalination membranes on three additional cruise ships. Proshare's success in this venture establishes it as the first national brand to win international luxury cruise ship orders for desalination RO membranes.

A Complete Water Treatment Plant for Generating Ultra-pure Water in Semiconductor Industry

As we all know, electronic-grade ultra-pure water on the membrane desalination rate requirements are extraordinary high, only a few brands can meet this requirement.

Based on Proshre revolutionary TFN membrane technology and TsingXi team's rich experience in the water treatment industry ,A complete water treatment plant pure water equipment solutions showed excellent rejection performance of the salt,boron and TOC. the system water production have reached the semiconductor industry production of water requirements.
This positive result helped us get the Japanese listed company  electronic ultra-pure water treatment project.

Proshare Tailor made TFN special acid-resistant and high-pressure membranes for Wastewater Treatment in Petrochemical / Refining Truly Achieve Zero Liquid Discharge

Proshare Tailor made TFN special acid-resistant and high-pressure membranes separation and concentration device for wastewater treatment containing ammonium sulphate desulphurisation , achieved wastewater concentration of up to 40 times the concentration of ammonium sulphate concentration of ≥ 20% of the concentrated water, significantly reducing the subsequent evaporation and crystallisation of energy consumption, substantial cost savings for the user, the quality of the water produced by the stable to meet the China Petroleum and Chemical Corporation corporate standard Q/SH 0628.2-2014 circulating water make-up water , and zero wastewater discharge has been truly achieved.
This positive result has gained subsequent orders from other subsidiaries of the group.
This membrane are also applicable to other high-temperature, highly acidic wastewater containing ammonium sulphate scenarios, such as energy, refining, chemical, metallurgical and other industries.the latest development of ammonia desulphurisation technology combined with carbon capture,help the new energy consumption and the development of the green industry chain, in line with the national 'dual-carbon policy.

Proshare TFN-SEP Customized NF Membrane Dramatically Increases Lithium Permeate Rate up to 96.6%,retention rate of Mg2+ > 99%,retention rate Ca2+ > 98%
 

Technical Bottlenecks of Membrane Separation (Nanofiltration/Reverse Osmosis) in Lithium Extraction from Salt Lakes challenged by membrane fouling,low selectivity<80%,high energy consumption accounts for 30%-40% of total cost,short membrane lifespan 2-3years.

Proshare PSI MEMBRANE TFN-SEP Customized NF /RO Membrane 
demonstrated superior performance data in an lithium extraction project located in Lakkor Tso Salt Lake ,Tibet.China:

With only 2 stage Nanofiltration process +1 stage RO given production water with Mg2+ 2.9mg/L, Ca2+ 2.25mg/L. retention rate of Mg2+ > 99%, retention rate Ca2+ > 98%, lithium permeate rate 96.6%, the flux close to 20LMH under the operating pressure of 1MPa.Proven membrane technology is environmentally and economically friendly and improves product purity and quality .

Our Advantages

Proshare Team's Breakthrough in Next-Generation Reverse Osmosis Membrane Technology
Proshare team has innovatively developed a new generation of reverse osmosis membranes based on polymer interface nano-self-assembly technology, overcoming the limitations of traditional reverse osmosis membrane development through two key advancements:
 Ultra-Thin Separation Layer: By employing polymer interface nanotechnology, the team successfully reduced the thickness of the separation layer to at least three times thinner than the traditional polyamide thin film (previously limited to 100 nm). This breakthrough significantly enhances water flux, achieving a substantial improvement in permeability.
 Enhanced Performance: The introduction of nanoparticles and specialized hydrophilic polymers has led to groundbreaking advancements in the membrane's hydrophilicity, anti-fouling capability, durability, and oxidation resistance
Compared to traditional polyamide reverse osmosis membranes, Proshare's innovation demonstrates breakthroughs in four key aspects:
Self-Assembled Nanocomposite Films
The integration of nano-scale precision control and nano-doping modification enables the creation of ultra-thin, highly ordered separation layers via polymer interface nanotechnology. This approach overcomes the limitations of conventional polyamide membranes in thickness uniformity and material diversity.

Enhanced Water Flux and Energy Efficiency
By optimizing the layer-by-layer self-assembly process, the functional layer thickness is precisely controlled, achieving a 3x reduction compared to traditional membranes. This results in >3x higher water flux and 30% lower energy consumption.
Novel Polymer Materials with Superior Chemical Stability
Moving beyond polyamide, the team utilizes advanced hydrophilic polymers (e.g., modified polysulfones) and ceramic-organic hybrids. These materials exhibit exceptional oxidation resistance (withstand 10 ppm chlorine exposure) and pH tolerance (stable in 1-12 pH range).
Anti-Fouling Surface Engineering
The superhydrophilic surface (contact angle <10°) combined with nanoparticle reinforcement reduces organic fouling propensity by 50%, extending chemical cleaning cycles from 3 months to 6 months and cutting maintenance costs by 40%.       

Certifications

 

 

 Health&safety management  system Certificate         Environmental management system certificate       ISO9001 qaulity system cetificate        

Invention patent of membranes produce              Invention patent of  multi-layer RO membrane              RoHS COMPLIANCE certificate

Packaging & Shipping

Company Profile

Proshare Innovation Suzhou Co., Ltd. is a national high-tech enterprise specializing in the R&D and industrialization of third-generation thin-film nanocomposite (TFN) membranes for reverse osmosis (RO), nanofiltration (NF), and material separation applications. Founded in 2017 by a team of overseas-returned doctoral experts led by Dr. Lin Xiaofeng, a recipient of national-level talent programs, the company has emerged as China's sole domestic manufacturer of TFN membranes.

Core Competencies

Technological Innovation: Pioneered the application of TFN technology to nanofiltration membranes, achieving fully independent R&D and localized production of both membranes and manufacturing equipment.
Intellectual Property: Holds over 31 patents, with membrane performance reaching internationally leading standards and replacing monopolized foreign products.
Production Capacity: Operates a 2,000 m² R&D facility and a 15,000 m² production base.
Funding: Completed Pre-A Round (2023) and A Round (January 2025) financing, backed by Suzhou Industrial Park Science Innovation Fund and Yong Sheng Capital.
Market Recognition: Designated as a preferred supplier for listed environmental engineering firms and state-owned enterprises.
Leadership:Dr. Lin Xiaofeng, a Ph.D. graduate from the University of Strasbourg (France), has been recognized with provincial and national talent awards (e.g., Suzhou Leading Talent, Jiangsu Dual Innovation Talent) and leads the company's R&D breakthroughs in TFN membrane industrialization.

WHY US?

FAQ:
(1) Q: Why Choose Our Company?

A:Complete water treatment solutions
Provide customer revolutionary (Thin Film Nanocomposite) TFN membrane sheet ,membrane element and water treatment system solutions.

A:Customization capabilities
Backup by national expert teams and Tsinghua University Suzhou Environmental Innovation.

A:Ensuring quality and delivering worth.
Not only do our premium solutions ,but can also provide significant ROI for customers,We provide training, support, and services, and bring our local expertise to global markets.

A:Collaborating with our customers
Our inspiration comes from our customers and what they do every day to provide the most valuable source of hope -clean water.Thriving together for a water-optimized world.

(2)Q: Are you a manufacturer or Trade Company?
A: We are a professional manufacturer holding our own International Trade Department, for that we can better understand customer's needs and offer a reasonable price.

(3) Q: How's the after-sale service?
A: We offer engineers available to service overseas under merchandiser's supervision and translation.

(4) Q: How about the quality?
A: The main sub-assembly and raw materials are all supplied by large companies. Key parts are research and developed by our own staff. Professional assembly line work and strict quality test system can ensure your high quality requirement.

(5) Q: Product /Quality Guarantee and After Sale Service?
A: 1 year warranty for the International standard. We are work online 24 hours. If you have any questions about our machine you can contact us.

(6) Q: Certification?
A: Tsingxi is an ISO9001, ISO14001, and ISO45001 company. The products are designed to meet the technical standards of 3C and CE. All the products are certified by the Industry Administration Authority. Tsingxi will continue to strive to be a stronger high-tech company in the global market of water treatment.