The RCP100-40NPP is a large-specification, high-performance water treatment filtration product engineered with advanced Novel Polypropylene (NPP) membrane technology, meticulously optimized for medium-high flux, high-precision purification in medium and large-scale industrial, commercial, municipal and environmental protection water treatment scenarios. This model integrates an expanded high-efficiency filtration area with a high-selectivity NPP membrane core, and a reinforced industrial-grade anti-corrosion and chemical-resistant structural housing, achieving an optimal balance between stable large-volume water treatment throughput and high purification precision—core advantages tailored for large-scale projects pursuing both efficiency and quality. It is fully compatible with standard industrial large-diameter water treatment pipeline setups, supports flexible modular parallel and series operation for on-demand scalable system configuration, and features excellent anti-pollution and broad water quality adaptability to work with complex raw water sources after simple targeted pre-treatment. Easy to install, operate and maintain, the RCP100-40NPP serves as a cost-effective and reliable premium core filtration solution for large-scale precision water purification projects, realizing industrial process water preparation, municipal tap water deep purification, brackish water desalination and wastewater resource reuse with low operational energy consumption and long-term stable performance.

The RCP100-40NPP features an ultra-high nominal filtration precision of 0.01 microns, with a nanoscale uniformly microporous NPP membrane surface that ensures consistent pore size distribution and eliminates filtration blind spots and micro-impurity leakage even under continuous medium-high flux operation. This high-precision filtration capability can effectively intercept and remove submicron suspended solids, colloidal particles, bacteria, algae spores, micro-particle impurities and macromolecular organic pollutants in raw water, ensuring that the effluent water quality stably meets national and industrial high-standard pure water requirements (Grade II ultra-pure water standard) and the strict quality criteria of industrial production and commercial high-standard water supply. The filtration precision remains unaltered with slight fluctuations in inlet water turbidity, temperature and impurity content within a reasonable range, providing a solid technical guarantee for subsequent water treatment processes or direct use in industrial production, municipal drinking water and commercial high-precision water supply systems.

Under standard operating conditions (25℃, rated working pressure), the RCP100-40NPP achieves a pure water flux of 40 L/m²·h—a medium-high flux design exclusively tailored for large-scale high-precision water treatment projects that balances efficient water throughput and uncompromised purification quality. The product’s optimized low-resistance wide water flow channel design and high-permeability NPP membrane material effectively minimize flux attenuation caused by membrane fouling; within the normal operating range (water temperature 5℃-40℃, inlet water turbidity ≤10 NTU), the flux remains highly stable with a monthly attenuation rate of ≤3.5% during long-term continuous operation. This medium-high and stable flux performance fully meets the large-volume high-precision water demand of medium and large-scale industrial production lines, municipal centralized water supply systems and commercial high-standard water supply networks, without sacrificing purification precision for increased water output efficiency.

The RCP100-40NPP delivers excellent salt rejection performance under standard operating parameters, with a 98.5% rejection rate for monovalent inorganic salt ions and a 99.4% rejection rate for divalent inorganic salt ions—performance levels that surpass conventional polypropylene membrane products of the same specification and NPP membrane models with lower flux. The ultra-dense, high-purity selective separation layer of the novel NPP membrane material forms an efficient ion barrier, 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 stable (variation ≤0.35%) even with slight fluctuations in inlet water salinity (≤2800 mg/L) and operating pressure, making the product an ideal core filtration choice for large-scale pure water preparation, high-standard brackish water desalination and industrial process water softening in industries with strict salt content limits such as electronic component manufacturing, food and beverage deep processing, pharmaceutical bulk drug production and new energy battery manufacturing.

During normal continuous operation at rated medium-high flux and standard water temperature, the pressure drop of the RCP100-40NPP is strictly controlled within the low range of 0.09-0.14 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 medium-high flux filtration process to the greatest extent. This 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 large-scale water treatment system, 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 (≤0.035 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 large-scale water treatment system.

The Molecular Weight Cutoff of the RCP100-40NPP is accurately calibrated at 900 Da (Daltons), a precise setting that enables the selective interception of medium and large molecular weight impurities in water while allowing water molecules and beneficial small inorganic and organic molecules to pass through smoothly—even under medium-high flux operating conditions. This optimized MWCO performance, tailored for large-scale water treatment scenarios, can effectively block organic medium molecules, colloidal substances, medium-molecular-weight polymers, protein impurities, polysaccharides and other micro-pollutants with a molecular weight higher than 900 Da, and is specially suitable for the high-precision separation and purification of water containing medium-molecular-weight organic pollutants in large-scale industrial production, municipal water supply and environmental protection wastewater treatment. The accurate MWCO design perfectly combines medium-high flux operation with high purification precision, ensuring high-standard effluent water quality and meeting the differentiated large-scale high-precision water quality requirements of various industrial, commercial and municipal application scenarios.

The core filtration membrane of the RCP100-40NPP is a multi-layer composite novel NPP membrane with a total thickness of 160 μm, consisting of a 27 μm ultra-dense selective separation layer (the core functional layer for high-precision filtration and high salt rejection), a 103 μm high-strength porous support layer (providing super strong mechanical support for the membrane under medium-high 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 medium-high flux, high-precision operation: the ultra-dense selective separation layer is made of high-purity NPP material with advanced nanoscale pore formation technology, ensuring uncompromised high filtration and salt rejection performance even under high water flow velocity; the high-strength porous support layer adopts a reinforced cross-linked polypropylene structure with optimized porosity, enhancing the membrane’s resistance to pressure and water flow impact, and avoiding membrane deformation or damage during long-term continuous medium-high flux operation; the anti-fouling protective layer is modified with special hydrophilic and anti-adhesion nanotechnology, which effectively reduces the adsorption of organic pollutants, microorganisms and scale-forming substances 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 cleaning schedule, the recommended replacement cycle of the RCP100-40NPP is 30-48 months—an extended service life specially designed for medium-high flux, large-scale operating scenarios, far longer than conventional medium-flux 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 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 medium-high flux operation, the recommended replacement cycle is 30 months to ensure the stable operation of high filtration precision, flux and salt rejection performance; for raw water with relatively high impurity content, the cycle can be appropriately shortened to 24-30 months based on actual detection data. The main indicators for replacement include a significant decrease in flux (≥18%), a sharp rise in pressure drop (≥0.06 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 large-scale water treatment system and ensuring the continuous operation of industrial production and municipal water supply.

The RCP100-40NPP has a number of outstanding product features that make it a highly competitive choice in the large-specification medium-high flux water treatment market, combining advanced novel NPP membrane technology with large-scale structural design for professional high-precision water purification scenarios. First, it adopts food-grade and industrial-grade dual-certified novel NPP 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 strict safety and purity requirements of industrial production, municipal drinking water and commercial high-standard water supply. Second, it features medium-high flux & high-precision dual optimization: the 40 L/m²·h stable medium-high flux and 0.01 micron ultra-high filtration precision realize the perfect balance between large water treatment throughput and high purification quality, breaking the traditional trade-off between flux and precision of conventional filtration products. Third, it has excellent salt rejection & calibrated MWCO performance: the 98.5% monovalent and 99.4% divalent salt rejection rate, combined with the 900 Da accurately calibrated MWCO, ensures high-standard effluent water quality and stable selective interception of impurities, meeting the pure water requirements of various large-scale industrial, commercial and municipal scenarios. Fourth, it features low pressure drop & high energy efficiency: the 0.09-0.14 MPa low operating pressure drop significantly reduces the system’s booster pump energy consumption, realizing energy-saving and environmentally friendly operation of large-scale water treatment systems and effectively cutting down users’ long-term operational costs. Fifth, the product has superior chemical resistance & structural stability: the NPP membrane material and reinforced engineering plastic housing have a wide pH adaptation range of 2-11, with excellent resistance to acids, alkalis and organic solvents; it can operate stably under a wide working pressure range of 0.5-1.2 MPa, resistant to short-term pressure fluctuations and water flow impact without membrane deformation or core damage, adapting to complex industrial and municipal water treatment working conditions. Sixth, it supports large-specification modular design & flexible expansion: the expanded filtration area design meets the large-volume high-precision water demand of medium and large-scale projects, 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 water treatment projects from medium to ultra-large. Seventh, it has enhanced anti-fouling performance & extended service life: the membrane surface hydrophilic and anti-adhesion nanomodification technology reduces pollutant adsorption, and the optimized flow channel design slows down membrane fouling rate, realizing a 30-48 months extended replacement cycle and effectively reducing the system’s maintenance and replacement costs. Eighth, it features broad water quality adaptability & easy maintenance: after simple pre-treatment (such as 2 μm coarse filtration), it can adapt to the treatment of surface water, groundwater, tap water and various industrial secondary water with different quality characteristics; the modular integrated structural design matches standard industrial pipeline accessories, requiring no complex secondary modification, and the disassembly, cleaning and replacement processes are simple and fast, reducing the labor cost of system operation and maintenance.

Benefiting from its core advantages of large specification, medium-high flux, high precision, excellent chemical resistance and stable performance, the RCP100-40NPP is widely applicable to various medium and large-scale industrial, commercial, municipal and environmental protection water treatment fields that require both large water volume output and high purification quality. In the industrial field, it is the core filtration product for large-scale pure water preparation in electronic component manufacturing, food and beverage deep processing, pharmaceutical bulk drug production, new energy battery manufacturing and chemical process water treatment; it is also used for large-flow industrial wastewater recycling treatment (printing and dyeing, food processing, electroplating, chemical wastewater) to realize water resource reuse, reduce enterprise water consumption costs and meet environmental protection emission standards. In the commercial field, it is applied to large-scale central water purification systems in high-end hotel clusters, super shopping malls, large office building complexes, university campuses and large-scale catering parks, as well as high-standard pure water supply systems in bottled water and barreled water production lines with high daily water demand. In the municipal water supply field, it is used for large-scale tap water deep purification in new urban areas, central business districts, large residential quarters and industrial parks, improving municipal drinking water quality to meet high-standard pure water requirements and upgrading residents’ and enterprise users’ water use experience. In the environmental protection field, it is applied to large-scale brackish water desalination in coastal and arid saline-alkali areas, rural centralized drinking water treatment for large villages and towns, and large-flow landscape water quality improvement and domestic sewage centralized treatment, realizing the efficient utilization of water resources and the improvement of water ecological environment. In addition, this model is also suitable for the large-scale high-precision water treatment of mobile water supply equipment in large construction sites and large-scale field operations, as well as the process water preparation in aerospace, precision instrument manufacturing and other high-end manufacturing fields with high pure water demand.

In summary, the RCP100-40NPP is a high-quality, large-specification, multi-scenario applicable water treatment filtration product that integrates advanced novel NPP membrane technology, optimized medium-high flux structural design and humanized functional design for large-scale high-precision water purification scenarios. As a flagship large-specification model of the NPP membrane series for medium-high flux high-precision applications, it breaks the traditional trade-off between water treatment throughput and purification precision, realizing a 40 L/m²·h stable medium-high flux, 0.01 micron ultra-high filtration precision, 99.4% divalent salt rejection rate and 900 Da calibrated MWCO while maintaining a 0.09-0.14 MPa low pressure drop. Its outstanding advantages such as high purification precision, stable medium-high flux, excellent salt rejection and chemical resistance, low operational energy consumption, extended service life (30-48 months), flexible modular configuration and broad water quality adaptability not only ensure the high-standard effluent quality for large-scale water treatment projects, but also effectively reduce the overall operation, maintenance and energy consumption costs of the system. The product’s large-specification design perfectly meets the medium and large-scale high-precision water demand of industrial production, municipal supply, commercial operation and environmental protection treatment, and its excellent compatibility with various water treatment processes (RO, EDI, UF, UV disinfection, etc.) makes it a versatile and reliable core filtration component for large-scale water treatment systems. Whether it is for large-scale pure water preparation in industrial production, municipal tap water deep purification, commercial high-standard centralized water supply, brackish water desalination in special areas or environmental protection wastewater resource reuse, the RCP100-40NPP can provide a customized, efficient and reliable one-stop large-scale high-precision filtration solution. Adhering to the design concept of efficiency, precision, durability and environmental protection, this product can help users optimize large-scale water treatment processes, improve water resource utilization efficiency, reduce environmental protection investment and operational costs, and realize the sustainable development of water treatment projects, making it an ideal core filtration choice for various medium and large-scale medium-high flux high-precision water treatment application scenarios.

The RCP100-40NPP is a flagship large-specification medium-high flux model in the professional novel NPP membrane water treatment series, and the matching related products cover core filtration series models, special pre-filtration protection, professional cleaning agents, high-precision intelligent control systems and customized installation accessories, fully meeting the differentiated large-scale high-precision water treatment needs of different users and various medium-high flux application scenarios. For the same series core filtration products, the RCP080-40NPP is a medium-specification medium-high flux model with a reduced filtration area, suitable for medium-scale high-precision water treatment projects such as medium-sized industrial workshops, regional commercial water supply systems and county-level municipal water supply plants; the RCP120-40NPP is an extra-large-specification medium-high flux model with an expanded filtration area, designed for ultra-large-scale high-precision water treatment projects such as large industrial parks, municipal central water supply plants and coastal large-scale brackish water desalination projects. The RCP100-30NPP is a low-medium flux high-precision model with a 30 L/m²·h pure water flux, prioritizing higher purification precision for large-scale water treatment projects with extremely strict effluent quality requirements; the RCP100-50NPP is a high-flux upgraded model with a 50 L/m²·h pure water flux, designed for ultra-large-flow industrial production lines and municipal water supply networks with slightly higher water volume demands. In terms of matching pre-filtration products, the RCP-PRE09 NPP Large-Spec Special Pre-Filter is specially designed for the large-specification NPP series, with a 2 μm ultra-fine coarse filtration precision and a large-flow water channel design optimized for medium-high flux operation, which can effectively remove fine particle impurities, sand, colloid and suspended solids in raw water, avoiding membrane fouling and damage caused by fine particles and extending the service life of the large-spec NPP membrane core by 20-25%. For professional cleaning products, the RCP-CLE09 NPP Medium-High Flux Membrane Special Cleaning Agent is a two-component high-efficiency cleaning agent, specially formulated for the pollution characteristics of NPP membranes under medium-high flux operation and complex raw water quality conditions, which can quickly and effectively remove organic fouling, scale, microbial slime and inorganic salt deposits on the membrane surface without damaging the dense separation layer, restore the filtration flux and salt rejection performance of the NPP membrane, and reduce the frequency of core replacement. In terms of intelligent control accessories, the RCP-CONT09 Large-Spec NPP Intelligent Operation and Monitoring Unit is perfectly matched with the large-specification NPP 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 single or multiple parallel units, and support automatic alarm, automatic low-pressure backwashing, intelligent cleaning reminder and remote data transmission, greatly improving the automation level and operational stability of large-scale water treatment systems and reducing manual operation and maintenance costs. In addition, the RCP-ACC08 Large-Spec NPP Special Installation Accessory Kit provides all the necessary high-pressure anti-leakage connectors, industrial-grade and food-grade gaskets, fixed brackets and sealing parts for the RCP100-40NPP and other large-spec NPP series products, supporting quick installation and connection with different standard large-diameter industrial and municipal water treatment pipelines, and ensuring the airtightness and stability of pipeline connection to avoid secondary pollution of purified water. The RCP-BR07 Medium-Pressure NPP Membrane Backwashing Pump is a special matching accessory for medium-high flux NPP filtration products, which can realize efficient variable-pressure reverse backwashing of the membrane core with adjustable pressure, further reduce membrane fouling, restore membrane permeability and extend the service life of the NPP membrane core by an additional 15-20%. The RCP-MON06 Large-Scale NPP Water Quality Analyzer is a matching accessory for the RCP-CONT09 unit, which can realize real-time and accurate detection of inlet and outlet water quality parameters such as TDS, conductivity, pH, ORP and turbidity with a wide detection range and high precision, and transmit data to the intelligent control unit in real time, realizing closed-loop monitoring and intelligent control of the entire large-scale water treatment system.