The RCP100-20VPP is a large-specification, high-precision water treatment filtration product engineered with advanced VPP (Premium Polypropylene) membrane technology, exclusively optimized for low-flux, ultra-stable high-precision purification in industrial precision manufacturing, professional laboratory, pharmaceutical and municipal high-end water treatment scenarios. This model features an expanded high-efficiency filtration area paired with a high-purity VPP membrane core, and a reinforced industrial-grade anti-corrosion structural housing, which is tailored to meet the strict effluent quality standards of medium and large-scale water treatment systems pursuing ultra-pure water output. It is fully compatible with standard industrial large-diameter water treatment pipeline setups, supports flexible modular parallel and series operation for customized system configuration, and has excellent chemical resistance and anti-pollution performance to adapt to complex raw water quality conditions with targeted simple pre-treatment. Easy to install, operate and maintain, the RCP100-20VPP serves as a premium core filtration solution for high-precision ultra-pure water preparation projects, realizing high-standard raw water purification, industrial process water refinement and ultra-pure water supply with ultra-low operational energy consumption and long-term stable performance.

The RCP100-20VPP boasts an ultra-high nominal filtration precision of 0.005 microns, with a nanoscale uniformly microporous VPP membrane surface that eliminates filtration blind spots and micro-impurity leakage even under long-term continuous low-flux operation. This extreme precision filtration capability can effectively intercept and remove submicron suspended solids, colloidal particles, bacteria, viruses, algae spores, micro-particle impurities and macromolecular organic pollutants in raw water, ensuring that the effluent water quality stably meets the national and industrial Grade I ultra-pure water standards, as well as the strict purity requirements of international precision manufacturing and pharmaceutical production. The filtration precision remains absolutely consistent with slight fluctuations in inlet water turbidity, temperature and impurity content, providing an unshakable technical guarantee for subsequent high-precision water treatment processes, direct use in microelectronic manufacturing and professional laboratory water supply.

Under standard operating conditions (25℃, rated working pressure), the RCP100-20VPP is designed with a pure water flux of 20 L/m²·h—a low-flux optimization exclusively tailored for high-precision purification scenarios that prioritizes effluent purity over water throughput. The product’s optimized low-resistance water flow channel design and high-selectivity VPP membrane material effectively eliminate flux instability caused by pressure changes and raw water quality fluctuations; within a reasonable range of operating conditions (water temperature 5℃-35℃, inlet water turbidity ≤5 NTU), the flux remains ultra-stable with an attenuation rate of ≤2.5% per month during long-term continuous operation. This low and stable flux performance ensures sufficient contact time between water and the membrane surface for thorough and efficient impurity interception, fully meeting the high-precision water demand of medium and large-scale industrial precision production, municipal high-end water supply refinement and professional scientific research institutions without compromising purification accuracy for water output volume.

The RCP100-20VPP delivers industry-leading salt rejection performance under standard operating parameters, with a 99.2% rejection rate for monovalent inorganic salt ions and a 99.9% rejection rate for divalent inorganic salt ions—far exceeding the performance of conventional polypropylene membrane products of the same specification. The ultra-dense, high-purity selective separation layer of the premium VPP membrane material, combined with the low-flux operating design, forms a double barrier for efficient salt ion interception, which can effectively block the passage of various salt ions, inorganic impurities and dissolved solids while ensuring the smooth and rapid penetration of water molecules. The salt rejection rate remains almost unchanged (variation ≤0.15%) even with slight fluctuations in inlet water salinity (≤2000 mg/L) and operating pressure, making the product an ideal core filtration choice for ultra-pure water preparation, high-standard brackish water desalination and industrial process water deep softening in industries with extreme salt content limits such as semiconductor chip manufacturing, precision electronic component processing and pharmaceutical raw material production.

During normal continuous operation at rated low flux and standard water temperature, the pressure drop of the RCP100-20VPP is strictly controlled within the ultra-low range of 0.07-0.11 MPa. The product adopts a highly optimized low-resistance internal structural design, including a smooth wide-diameter water inlet/outlet channel, a high-porosity porous support layer with uniform pore distribution and a streamlined filtration core layout, which minimizes water flow resistance in the low-flux filtration process to the greatest extent. This ultra-low pressure drop performance significantly reduces the energy consumption of the water treatment system’s booster pump, lowers the overall operational energy cost of the system to the minimum, and fundamentally avoids membrane core damage caused by excessive pressure accumulation in the pipeline. The pressure drop has no obvious increase during the normal service life; a slight rise (≤0.02 MPa) is only observed when regular cleaning is required, which is easy to identify and handle, ensuring the long-term stable, energy-efficient and low-loss operation of the entire high-precision water treatment system.

The Molecular Weight Cutoff of the RCP100-20VPP is accurately calibrated at 400 Da (Daltons), an ultra-precise setting that enables the selective interception of small and medium molecular weight impurities in water while allowing only water molecules and trace beneficial inorganic small molecules to pass through—even under long-term low-flux operating conditions. This ultra-low MWCO performance can effectively block organic small molecules, colloidal substances, low-molecular-weight polymers, protein impurities, polysaccharides and other micro-pollutants with a molecular weight higher than 400 Da, and is specially suitable for the high-precision separation and purification of water containing low-molecular-weight organic pollutants in industrial precision manufacturing, pharmaceutical synthesis and scientific research test scenarios. The accurate MWCO design perfectly combines low-flux stable operation with ultra-high purification precision, ensuring the strictest effluent quality standards and meeting the differentiated high-precision water quality requirements of various professional low-flux application scenarios.

The core filtration membrane of the RCP100-20VPP is a multi-layer composite premium VPP membrane with a total thickness of 175 μm, consisting of a 32 μm ultra-dense selective separation layer (the core functional layer for ultra-high precision filtration and ultra-high salt rejection), a 113 μm high-strength porous support layer (providing super strong mechanical support for the membrane under long-term low-flux and pressure-stable working conditions) and a 30 μm anti-fouling protective layer (reducing membrane surface pollution and mechanical wear). The multi-layer thickness and material optimization design are exclusively tailored for low-flux, high-precision operation: the ultra-dense selective separation layer is made of high-purity VPP material with advanced nanoscale pore formation technology, ensuring uncompromised ultra-high filtration and salt rejection performance for a long time; the high-strength porous support layer adopts a reinforced cross-linked polypropylene structure, enhancing the membrane’s resistance to pressure and water flow impact, and avoiding membrane deformation or damage during long-term continuous operation; the anti-fouling protective layer is modified with special hydrophilic and anti-adhesion nanotechnology, which effectively reduces the adsorption of pollutants on the membrane surface and maintains the long-term high permeability and purification efficiency of the membrane core.

Under standard operating conditions and strict adherence to the regular maintenance and deep cleaning schedule, the recommended replacement cycle of the RCP100-20VPP is 36-48 months—an extended service life specially designed for low-flux, high-stability operating scenarios, which is far longer than conventional polypropylene membrane filtration products. The actual replacement cycle can be flexibly adjusted according to the actual inlet water quality and operating frequency: for raw water with ultra-low impurity content, low salinity and regular professional deep cleaning (1-2 times per quarter), the replacement cycle can be extended to 48 months; for raw water with moderate impurity content and 24-hour continuous low-flux operation, the recommended replacement cycle is 36 months to ensure the stable operation of ultra-high filtration precision, salt rejection rate and MWCO performance. The main indicators for replacement include a significant decrease in flux (≥15%), a sharp rise in pressure drop (≥0.05 MPa) or a noticeable decline in salt rejection rate (≥0.5%); the product’s modular integrated design makes the replacement process simple and fast, requiring no professional special tools, and a single operator can complete the entire replacement operation within 40 minutes, minimizing the downtime of the high-precision water treatment system and ensuring the continuous operation of production and research work.

The RCP100-20VPP has a number of outstanding product features that make it a leading choice in the high-precision low-flux water treatment market, combining advanced premium VPP membrane technology with large-specification structural design for professional high-precision purification scenarios. First, it adopts semiconductor-grade and food-grade dual-certified premium VPP membrane materials, which are non-toxic, odorless, free of heavy metal leaching and organic matter precipitation, and have no secondary pollution to water quality, fully meeting the extreme safety and purity requirements of semiconductor manufacturing, pharmaceutical GMP production and professional laboratory water treatment. Second, it features ultra-high precision & ultra-stable low-flux operation: the 0.005 micron ultra-fine filtration precision and 20 L/m²·h optimized low flux design realize thorough impurity interception and long-term operational stability, breaking the performance limit of conventional polypropylene membranes in high-precision ultra-pure water purification. Third, it has industry-leading salt rejection performance: the 99.2% monovalent and 99.9% divalent salt rejection rate meets the strictest ultra-pure water standards of precision manufacturing and scientific research, providing a reliable technical guarantee for high-standard water quality demand. Fourth, it features ultra-low pressure drop & super energy efficiency: the 0.07-0.11 MPa ultra-low operating pressure drop significantly reduces the system’s booster pump energy consumption, realizing the energy-saving and environmentally friendly operation of high-precision water treatment systems and reducing the long-term operational cost of users. Fifth, the product has excellent chemical resistance and structural stability: the VPP membrane material and reinforced housing have a wide pH adaptation range of 1-12, with excellent resistance to acids, alkalis and organic solvents, and can operate stably under a wide working pressure range of 0.4-1.0 MPa, resistant to short-term pressure fluctuations and water flow impact without membrane deformation or core damage, adapting to the strict operational requirements of high-precision water treatment systems. Sixth, it supports large-specification modular design & flexible configuration: the expanded filtration area design meets the medium and large-scale high-precision water demand, and multiple units can be connected in parallel or series to realize flexible expansion of system processing capacity and purification precision, adapting to the different scale requirements of various high-precision water treatment projects. Seventh, it has enhanced anti-fouling performance & extended service life: the membrane surface hydrophilic modification technology reduces pollutant adsorption, and the low-flux operating design slows down membrane fouling rate, realizing a 36-48 months extended replacement cycle and effectively reducing the system’s maintenance and replacement costs. Eighth, it has wide adaptive compatibility: after targeted simple pre-treatment, it can be used for the high-precision purification of surface water, groundwater, tap water and industrial secondary water with different quality characteristics, and is fully compatible with various high-precision water treatment process systems such as RO, EDI and UV disinfection, with strong process matching.

Benefiting from its core advantages of large-specification, ultra-high precision, low-flux stability and industry-leading salt rejection performance, the RCP100-20VPP is widely applicable to various medium and large-scale industrial precision manufacturing, scientific research, pharmaceutical, medical and municipal high-end water treatment fields that require strict effluent quality and low-flux stable operation. In the industrial precision manufacturing field, it is the core filtration product for ultra-pure water preparation in semiconductor chip manufacturing, microelectronic component processing, optoelectronic device production and precision instrument manufacturing, providing ultra-pure water that meets the Grade I ultra-pure water standard for core production processes and ensuring the product quality and yield of precision manufacturing. In the pharmaceutical and biological engineering field, it is used for the high-precision purification of pharmaceutical raw material water, injection water and biological reagent preparation water, meeting the GMP quality standards of the pharmaceutical industry and the strict purity requirements of biological medicine research and production, and ensuring the safety and effectiveness of pharmaceutical products. In the scientific research and laboratory field, it is applied to the ultra-pure water supply system of national key laboratories, scientific research institutions, university key laboratories and third-party testing institutions, providing high-purity water for chemical analysis, biological experiment, material research and precision instrument detection, and ensuring the accuracy and reliability of research and test results. In the municipal high-standard water supply field, it is used for the deep refinement of tap water in high-end residential quarters, central business districts and international communities, improving the drinking water quality to meet the international high-standard drinking water requirements and upgrading the residential water quality experience. In the medical and health field, it is applied to the high-precision water treatment system of tertiary hospitals, specialized medical institutions and biological medicine research centers, providing ultra-pure water for medical equipment high-precision cleaning, clinical precision testing and medical scientific research, and ensuring the safety of medical diagnosis and treatment work. In addition, this model is also suitable for the high-precision purification of industrial process water in aerospace, nuclear energy and other high-end manufacturing fields, as well as the water quality refinement of pure water production lines in the food and beverage industry with strict purity requirements, and the ultra-pure water preparation for laboratory testing in the environmental monitoring field.

In summary, the RCP100-20VPP is a high-end, large-specification, high-precision water treatment filtration product that integrates advanced premium VPP membrane technology, optimized low-flux structural design and humanized functional design for professional high-precision ultra-pure water purification scenarios. As a flagship large-specification model of the VPP membrane series for low-flux high-precision applications, it breaks the performance limit of conventional polypropylene membranes in ultra-high precision filtration and salt rejection, realizing a 0.005 micron ultra-fine filtration precision, 99.9% divalent salt rejection rate and 400 Da ultra-low MWCO while maintaining a 20 L/m²·h stable low flux and 0.07-0.11 MPa ultra-low pressure drop. Its outstanding advantages such as ultra-high purification precision, industry-leading salt rejection performance, long-term operational stability, ultra-low energy consumption, extended service life (36-48 months) and flexible modular configuration not only ensure the strictest effluent quality standards for high-precision water treatment projects, but also effectively reduce the overall operation, maintenance and energy consumption costs of the system. The product’s large-specification design meets the medium and large-scale high-precision water demand of industrial production and scientific research, and its excellent compatibility with various high-precision water treatment processes (RO, EDI, UV, etc.) makes it a versatile and reliable core filtration component for high-precision water treatment systems. Whether it is for ultra-pure water preparation in industrial precision manufacturing, high-standard water purification in pharmaceutical GMP production, ultra-pure water supply in scientific research laboratories or municipal high-end drinking water refinement, the RCP100-20VPP can provide a customized, efficient and ultra-reliable one-stop high-precision filtration solution. Adhering to the design concept of precision, stability, energy conservation and durability, this product can help users optimize high-precision water treatment processes, improve water resource utilization efficiency, and ensure the high quality and stability of industrial production and scientific research results, making it an irreplaceable ideal core filtration choice for various medium and large-scale high-precision low-flux water treatment application scenarios.

The RCP100-20VPP is a flagship large-specification high-precision model in the professional premium VPP membrane water treatment series, and the matching related products cover core filtration series models, special pre-filtration protection, professional deep cleaning agents, high-precision intelligent control systems and customized installation accessories, fully meeting the differentiated high-precision water treatment needs of different users and various low-flux application scenarios. For the same series core filtration products, the RCP080-20VPP is a medium-specification high-precision model with a reduced filtration area, suitable for small and medium-scale high-precision water treatment projects such as small scientific research laboratories and mini-type precision manufacturing workshops; the RCP120-20VPP is an extra-large-specification high-precision model with an expanded filtration area, designed for ultra-large-scale high-precision water treatment projects such as large semiconductor manufacturing bases and national key scientific research platforms. The RCP100-30VPP is a moderate-flux high-precision upgraded model with a 30 L/m²·h pure water flux, balancing high purification precision and moderate water throughput for medium and large-scale high-precision water treatment projects with slightly higher water volume demands. In terms of matching pre-filtration products, the RCP-PRE07 VPP High-Precision Special Pre-Filter is specially designed for the high-precision VPP series, with a 1 μm ultra-fine coarse filtration precision and a large-flow water channel design, which can effectively remove fine particle impurities, sand and colloid in raw water, avoiding membrane fouling and damage caused by fine particles and extending the service life of the high-precision VPP membrane core by 20-25%. For professional cleaning products, the RCP-CLE07 VPP High-Precision Membrane Special Deep Cleaning Agent is a three-component high-efficiency cleaning agent, specially formulated for the pollution characteristics of high-precision VPP membranes under low-flux operation, which can quickly and effectively remove organic fouling, scale, microbial slime and low-molecular-weight organic deposits on the membrane surface without damaging the ultra-dense separation layer, restore the ultra-high filtration precision and salt rejection performance of the VPP membrane, and reduce the frequency of core replacement. In terms of intelligent control accessories, the RCP-CONT07 High-Precision Intelligent Operation and Monitoring Unit is perfectly matched with the high-precision VPP series, which can realize real-time and high-precision monitoring of key operating parameters such as flux, pressure drop, inlet/outlet water salinity, TDS, turbidity and temperature for a single or multiple parallel units, and support automatic alarm, automatic low-pressure backwashing, intelligent cleaning reminder and remote data transmission with millisecond-level response, greatly improving the automation level and operational stability of the high-precision water treatment system and reducing manual operation and maintenance costs. In addition, the RCP-ACC06 High-Precision VPP Special Installation Accessory Kit provides all the necessary high-pressure anti-leakage connectors, food-grade and pharmaceutical-grade gaskets and fixed brackets for the RCP100-20VPP and other high-precision VPP series products, supporting quick installation and connection with different standard large-diameter high-precision water treatment pipelines, and ensuring the airtightness and stability of the pipeline connection to avoid secondary pollution of ultra-pure water. The RCP-BR05 Low-Pressure Precision Membrane Backwashing Pump is a special matching accessory for high-precision VPP filtration products, which can realize soft and efficient reverse backwashing of the membrane core with adjustable low pressure, further reduce membrane fouling, restore membrane permeability and extend the service life of the high-precision VPP membrane core by an additional 15-20% without damaging the ultra-dense separation layer. The RCP-MON04 High-Precision Multi-Parameter Water Quality Analyzer is a matching high-end accessory for the RCP-CONT07 unit, which can realize real-time and accurate detection of inlet and outlet water quality parameters such as TDS, conductivity, pH, ORP and dissolved oxygen with a detection accuracy of 0.01 level, and transmit data to the intelligent control unit in real time, realizing closed-loop high-precision monitoring and intelligent control of the entire high-precision water treatment system.