The RCP200-40SPP is a heavy-duty high-end ultra-large-specification water treatment filtration product engineered with advanced Super Polypropylene (SPP) membrane technology, dedicatedly optimized for 40 L/m²·h stable flux and ultra-high precision purification in ultra-large-capacity high-end industrial production, municipal high-standard water supply, pharmaceutical GMP manufacturing and large-flow wastewater deep treatment scenarios with massive water volume and stringent purity requirements. As a flagship ultra-large-spec model of the SPP membrane series, it integrates an extra-expanded high-efficiency filtration area with a high-purity, high-selectivity heavy-duty anti-fouling SPP membrane core, and is equipped with a reinforced industrial-grade anti-corrosion and pressure-resistant structural housing. This heavy-duty structural design achieves an unparalleled balance between ultra-large processing capacity, stable medium-high flux and reliable ultra-high precision purification, a core advantage tailored for high-end large-scale water treatment projects such as municipal central water supply plants, national-level high-tech industrial parks and large pharmaceutical production bases that pursue massive water output, consistent high-standard effluent quality and long-term stable operation. The product is fully compatible with industrial large-diameter pressure pipeline setups, supports flexible modular parallel and series operation for on-demand system capacity expansion and precision adjustment, and features excellent anti-pollution, anti-load and broad water quality adaptability. It enables stable long-term continuous operation with complex raw water sources including surface water, groundwater and industrial secondary water after simple targeted pre-treatment (1 μm coarse filtration). With a humanized heavy-duty modular structure, the RCP200-40SPP is easy to install, operate and maintain, and serves as a high-reliability, cost-effective premium core filtration solution for ultra-large-capacity high-precision water purification projects, realizing large-scale high-end industrial process water preparation, municipal high-standard tap water deep purification, large-flow wastewater resource high-value reuse and commercial high-end centralized water supply with low operational energy consumption and consistent long-term performance.

The RCP200-40SPP features an extreme ultra-high nominal filtration precision of 0.008 microns, with a nanoscale uniformly microporous SPP membrane surface formed by advanced cross-linking, phase inversion and high-density molding technology. The membrane pore size distribution is absolutely consistent, and there are no filtration blind spots even under the ultra-large load operation of 40 L/m²·h stable flux and continuous large-volume water passing. This ultra-high precision filtration capability can effectively intercept and remove submicron suspended solids, colloidal particles, bacteria, viruses, algae spores, micro-particle impurities and all macromolecular organic pollutants in raw water, ensuring that the effluent water quality stably meets national and industrial Grade I ultra-pure water standards and international advanced pure water quality requirements, fully satisfying the strict purity demands of high-end large-scale industrial production, pharmaceutical GMP manufacturing and municipal high-standard water supply. The filtration precision remains completely unaltered with slight fluctuations in inlet water turbidity (≤12 NTU), temperature (5℃-40℃) and impurity content within a reasonable range, avoiding any micro-impurity leakage and providing a solid and reliable technical guarantee for subsequent high-precision water treatment processes or direct use in various ultra-large-flow high-precision water demand scenarios.

Under standard operating conditions (25℃, rated working pressure), the RCP200-40SPP achieves a pure water flux of 40 L/m²·h—a medium-high stable flux design exclusively tailored for its ultra-large-spec filtration area and heavy-duty high-end operating conditions. Different from ordinary large-spec models, this flux setting is optimized for long-term high-load stability and ultra-high precision purification, breaking the traditional trade-off between ultra-large processing capacity, flux stability and purification precision of large-spec filtration products. The product’s optimized low-resistance wide-channel water flow design and high-permeability SPP membrane material effectively minimize flux attenuation caused by membrane fouling and high-load operation; within the normal operating range (water temperature 5℃-40℃, inlet water turbidity ≤12 NTU), the flux remains highly stable with a monthly attenuation rate of ≤3.0% during long-term continuous operation. This ultra-stable flux performance, combined with the extra-expanded high-efficiency filtration area, forms the ultra-large high-precision processing capacity of the product, fully meeting the massive high-precision water volume demand of municipal centralized high-standard water supply systems, high-end large industrial production lines, pharmaceutical GMP production bases and large-flow wastewater deep treatment projects, without sacrificing ultra-high purification precision for increased water output scale, and effectively ensuring the consistency and high standard of effluent quality in large-capacity operation.

The RCP200-40SPP delivers industry-leading stable salt rejection performance under standard ultra-large-spec high-load operating parameters, with a 98.9% rejection rate for monovalent inorganic salt ions and a 99.7% rejection rate for divalent inorganic salt ions—performance levels that far surpass conventional polypropylene membrane products of the same flux specification and set a high industry standard for ultra-large-spec super polypropylene filtration products. The ultra-dense, high-purity selective separation layer of the super SPP membrane material forms an efficient ion barrier with ultra-strong molecular selectivity, 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 even under the high-load operation of 40 L/m²·h stable flux and ultra-large water passing volume. The salt rejection rate remains extremely stable (variation ≤0.25%) even with slight fluctuations in inlet water salinity (≤3000 mg/L) and operating pressure, making the product an ideal core filtration choice for large-scale ultra-pure water preparation, high-standard brackish water desalination, industrial process water deep softening and municipal high-standard tap water deep purification in high-end industries with strict salt content limits such as semiconductor component manufacturing, pharmaceutical GMP production, new energy lithium battery manufacturing and precision optical instrument processing.

During normal continuous operation at rated 40 L/m²·h stable flux and standard water temperature (25℃), the pressure drop of the RCP200-40SPP is strictly controlled within the ultra-low range of 0.09-0.14 MPa. Aiming at the ultra-large-spec filtration area and large water passing volume of high-end operation, the product adopts a highly optimized heavy-duty low-resistance internal structural design, including a smooth large-diameter water inlet/outlet channel, a high-porosity high-strength porous support layer with uniform pore distribution and a streamlined multi-channel bionic filtration core layout, which minimizes water flow resistance in the filtration process to the greatest extent and avoids local pressure loss caused by large water volume passing and ultra-high precision filtration. This ultra-low pressure drop performance for ultra-large-spec high-load operation significantly reduces the energy consumption of the water treatment system’s booster pump and water delivery pump, lowers the overall operational energy cost of the ultra-large-capacity high-precision water treatment system by more than 20% compared with conventional large-spec products, and fundamentally avoids membrane core damage and structural deformation caused by excessive pressure accumulation in the pipeline and filtration core under large-flow high-precision operation. The pressure drop has no obvious increase during the normal service life; a slight rise (≤0.03 MPa) is only observed when regular deep cleaning is required, which is easy to identify and handle, ensuring the long-term stable, energy-efficient and low-loss operation of the entire ultra-large-capacity high-precision water treatment system.

The Molecular Weight Cutoff of the RCP200-40SPP is accurately calibrated at 900 Da (Daltons), a precise setting tailored for its ultra-large-spec filtration area, 40 L/m²·h stable flux and ultra-large-capacity high-precision water treatment scenarios. This MWCO value enables the selective interception of small and medium molecular weight impurities in water while allowing water molecules and beneficial trace small inorganic molecules to pass through smoothly—even under continuous high-load operation with ultra-large water passing volume and ultra-high precision filtration. This optimized MWCO performance can effectively block trace organic small molecules, colloidal substances, low-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 ultra-high precision separation and purification of water containing trace low-molecular-weight organic pollutants in large-scale high-end industrial production, municipal high-standard water supply and large-flow wastewater deep treatment. The accurate MWCO design perfectly combines ultra-large-spec high-load operation, stable flux and ultra-high purification precision, ensures the strictest high-standard and consistent effluent water quality, and meets the differentiated ultra-large-capacity ultra-high precision water quality requirements of various high-end industrial, pharmaceutical and municipal application scenarios.

The core filtration membrane of the RCP200-40SPP is a heavy-duty multi-layer composite super SPP membrane with a total thickness of 180 μm, scientifically composed of three functional layers that are exclusively optimized for its ultra-large-spec, 40 L/m²·h stable flux and high-load long-term high-precision operation: a 35 μm ultra-dense selective separation layer (the core functional layer for ultra-high precision filtration and industry-leading salt rejection, made of high-purity high-strength SPP material with advanced nanoscale pore formation and cross-linking technology, ensuring uncompromised ultra-high purification performance under high water flow velocity and long-term load operation); a 115 μm high-strength porous support layer (providing super strong mechanical support and pressure resistance for the membrane under high-load and large-flow high-precision working conditions, adopting a reinforced cross-linked polypropylene structure with optimized porosity and pore size distribution to avoid membrane deformation and damage caused by high water flow impact and long-term load); and a 30 μm anti-fouling protective layer (modified with special hydrophilic and anti-adhesion heavy-duty nanotechnology, reducing membrane surface pollution and mechanical wear by more than 35%, and inhibiting the adsorption of organic pollutants, microorganisms and trace impurities to slow down fouling rate under high-load large-flow high-precision operation). The three-layer thickness and material optimization design, combined with heavy-duty high-density molding technology, ensure the membrane’s long-term structural stability, ultra-high purification efficiency and anti-load performance while maintaining excellent water permeability, which is the core key to realizing the perfect balance between ultra-large processing capacity, stable flux and ultra-high precision of the product.

Under standard operating conditions and strict adherence to the regular maintenance and deep cleaning schedule, the recommended replacement cycle of the RCP200-40SPP is 36-48 months—an ultra-extended service life specially designed for its ultra-large-spec, 40 L/m²·h stable flux and high-load large-capacity high-precision operating scenarios, far longer than conventional small and medium-spec SPP membrane filtration products and ordinary ultra-large-spec polypropylene membrane models. 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 high-load operation, the recommended replacement cycle is 36 months to ensure the stable operation of ultra-high filtration precision, flux and salt rejection performance; for raw water with relatively high impurity content, the cycle can be appropriately shortened to 32-36 months based on real-time detection data of water quality and operating parameters. The main quantitative 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 (≥0.3%); the product’s heavy-duty modular integrated design makes the replacement process simple and fast, requiring no professional special tools, and a small operating team can complete the entire replacement operation within 40 minutes, minimizing the downtime of the ultra-large-capacity high-precision water treatment system and ensuring the continuous operation of high-end large-scale industrial production and municipal high-standard centralized water supply.

The RCP200-40SPP has a number of leading core features that make it an irreplaceable choice in the ultra-large-spec high-end water treatment market, combining advanced super SPP membrane technology with heavy-duty ultra-large-spec structural design for professional 40 L/m²·h stable flux and ultra-large-capacity ultra-high precision water purification scenarios. 1. Ultra-large-spec filtration area & 40 L/m²·h stable flux dual optimization: Realizes the perfect balance between ultra-massive water processing capacity and stable medium-high flux, breaking the traditional trade-off between large capacity, flux stability and purification precision of large-spec filtration products, and meeting the ultra-large-volume ultra-high precision water demand of high-end large-scale projects. 2. Semiconductor & pharmaceutical dual-certified heavy-duty SPP membrane material: Adopts semiconductor-grade and pharmaceutical-grade dual-certified super SPP membrane materials with heavy-duty high-density molding technology, non-toxic, odorless, free of heavy metal leaching, organic matter precipitation and trace impurity release, no secondary pollution to water quality, and has excellent anti-load, anti-fouling and chemical resistance performance, fully meeting the strictest safety, purity and long-term operation requirements of high-end large-scale industrial production, pharmaceutical GMP manufacturing and municipal high-standard water supply. 3. Industry-leading salt rejection & calibrated MWCO performance: 98.9% monovalent and 99.7% divalent salt rejection rate, combined with 900 Da accurately calibrated MWCO, ensures the strictest high-standard and consistent effluent water quality and stable selective interception of trace micro-impurities, meeting the ultra-pure water requirements of various ultra-large-capacity high-end industrial, pharmaceutical and municipal scenarios. 4. Ultra-low pressure drop & super energy efficiency for ultra-large-spec high-load operation: The 0.09-0.14 MPa ultra-low operating pressure drop under 40 L/m²·h stable flux and large-capacity high-precision operation significantly reduces the energy consumption of the system’s water delivery and booster equipment, realizing energy-saving and environmentally friendly operation of ultra-large-capacity high-precision water treatment systems and effectively cutting down users’ long-term operational costs by more than 20%. 5. Superior heavy-duty structural stability & broad water quality adaptability: The reinforced heavy-duty engineering plastic housing and high-strength SPP membrane material enable stable operation under a wide working pressure range of 0.5-1.4 MPa, resistant to short-term pressure fluctuations and large water flow impact without membrane deformation and structural damage; with an ultra-wide pH adaptation range of 2-11, it can adapt to the treatment of surface water, groundwater, tap water and various industrial secondary water with different quality characteristics after simple 1 μm pre-filtration. 6. Heavy-duty modular design & flexible on-demand expansion: Extra-expanded high-efficiency filtration area design meets the ultra-massive high-precision water demand of high-end large-scale projects; multiple units can be connected in parallel or series to realize flexible expansion of system processing capacity and purification precision, adapting to different scale requirements of various water treatment projects from large to ultra-large without changing the core pipeline layout, and the modular structure is easy for centralized intelligent management and maintenance. 7. Enhanced anti-fouling performance & ultra-extended service life: Membrane surface hydrophilic and anti-adhesion heavy-duty nanomodification technology reduces pollutant adsorption by more than 35%, and optimized low-resistance multi-channel bionic flow channel design slows down membrane fouling rate under high-load large-flow high-precision operation; the 36-48 months ultra-extended replacement cycle effectively reduces the system’s maintenance and replacement costs, and improves the overall operation efficiency and economic benefits of the large-capacity high-precision water treatment system. 8. Heavy-duty integrated modular structure & easy maintenance: The whole machine adopts an integrated heavy-duty modular design that matches industrial large-diameter pressure pipeline accessories, no complex secondary modification required for installation; disassembly, online CIP cleaning and core replacement processes are simple and fast, and regular daily maintenance does not require professional technical personnel, greatly reducing the labor cost and maintenance difficulty of system operation and maintenance.

Benefiting from its core advantages of ultra-large-spec filtration area, 40 L/m²·h stable flux, ultra-high precision, heavy-duty stable performance and broad adaptability, the RCP200-40SPP is widely applicable to various ultra-large-capacity high-end industrial, pharmaceutical, municipal and environmental protection water treatment fields that require both massive water volume output and the strictest purification quality. In the high-end large-scale industrial field, it is the core filtration product for large-scale ultra-pure water preparation in semiconductor component manufacturing clusters, new energy lithium battery production bases, precision optical instrument processing plants and high-end petrochemical production bases, realizing large-scale high-end industrial process water supply and large-flow industrial wastewater deep purification and resource reuse, reducing enterprise water consumption costs and meeting the strict environmental protection emission standards of high-end industries. In the pharmaceutical and biological engineering field, it is the core filtration equipment for the ultra-high precision purification of pharmaceutical raw material water, injection water, sterile water and biological reagent preparation water in large pharmaceutical GMP production bases and biological engineering parks, fully meeting the GMP, GSP and international cGMP quality standards of the pharmaceutical industry, and ensuring the absolute safety and effectiveness of pharmaceutical products. In the municipal high-standard water supply field, it is applied to municipal tap water deep refinement in large and medium-sized cities, new central urban areas and high-end international communities with massive water demand, improving municipal drinking water quality to meet international advanced high-standard drinking water requirements, and ensuring the safe and high-quality water supply for urban high-end residents and commercial areas. In the environmental protection deep treatment field, it is used for large-scale high-precision brackish water desalination in coastal and arid saline-alkali areas with large population and high water quality requirements, rural centralized high-standard drinking water treatment for large towns, and large-flow wastewater deep purification and resource high-value reuse in high-tech industrial parks, realizing the efficient utilization of water resources and the high-level improvement of regional water ecological environment. In addition, this model is also suitable for the large-scale high-capacity high-precision water treatment of mobile water supply equipment in large high-end construction sites, large-scale field operation bases and emergency high-standard water supply scenarios, as well as the process water preparation in aerospace, nuclear energy and marine engineering bases with large water volume demand, ultra-high pure water requirements and harsh working conditions.

In summary, the RCP200-40SPP is a heavy-duty ultra-large-specification, high-end high-performance and multi-scenario applicable water treatment filtration product that integrates advanced super SPP membrane technology, optimized 40 L/m²·h stable flux design and heavy-duty ultra-large-spec structural design for ultra-large-capacity ultra-high precision water purification scenarios. As a flagship ultra-large-spec model of the SPP membrane series, it breaks the long-standing performance limit between ultra-large processing capacity, flux stability and ultra-high purification precision of polypropylene membrane products, realizing an ultra-large filtration area, 40 L/m²·h stable flux, 0.008 micron ultra-high filtration precision, 99.7% divalent salt rejection rate and 900 Da calibrated MWCO while maintaining an ultra-low pressure drop of 0.09-0.14 MPa under high-load large-capacity operation. Its outstanding advantages including ultra-large-capacity and stable flux dual optimization, industry-leading salt rejection performance, super energy efficiency for ultra-large-spec high-load operation, superior heavy-duty structural stability, ultra-wide water quality adaptability, flexible modular configuration and easy installation and maintenance not only ensure the strictest high-standard and consistent effluent quality for ultra-large-capacity high-precision water treatment projects, but also effectively reduce the overall operation, maintenance and energy consumption costs of the system. The product’s ultra-large-spec design and 40 L/m²·h stable flux perfectly meet the ultra-massive high-precision water demand of high-end large-scale industrial production, pharmaceutical GMP manufacturing, municipal high-standard centralized water supply and environmental protection deep treatment, and its excellent compatibility with various mainstream high-precision water treatment processes (RO, EDI, UF, UV disinfection, ozone oxidation, ion exchange) makes it a versatile, high-reliability and irreplaceable core filtration component for ultra-large-capacity high-precision water treatment systems. Whether it is for large-scale ultra-pure water preparation in high-end industrial production bases, pharmaceutical GMP-grade injection water production, municipal high-standard drinking water refinement, large-scale high-precision brackish water desalination in special areas or large-flow wastewater deep purification and high-value reuse, the RCP200-40SPP can provide a customized, efficient and reliable one-stop ultra-large-capacity ultra-high precision filtration solution. Adhering to the design concept of large capacity, high stability, ultra precision and long durability, this product can help users optimize ultra-large-capacity high-precision water treatment processes, improve water resource utilization efficiency on a large scale, reduce environmental protection investment and operational costs, and realize the sustainable development of water treatment projects, making it an irreplaceable ideal core filtration choice for various ultra-large-capacity ultra-high precision water treatment application scenarios.

The RCP200-40SPP is a flagship ultra-large-specification 40 L/m²·h stable flux model in the professional super SPP membrane water treatment series, and the matching related products cover core filtration series models, special heavy-duty pre-filtration protection, professional deep cleaning agents, high-precision intelligent control systems and customized heavy-duty installation accessories, fully meeting the differentiated ultra-large-capacity ultra-high precision water treatment needs of different users and various high-end application scenarios. For the same series core filtration products, there are four complementary models to meet different high-end large-scale project demands: RCP150-40SPP (medium-large-specification 40 L/m²·h stable flux model with reduced filtration area, suitable for medium-large-scale high-precision water treatment projects such as medium-sized pharmaceutical GMP workshops, regional municipal high-standard water supply systems and semiconductor component processing plants with daily water demand of 500-1000 tons); RCP250-40SPP (super-large-specification 40 L/m²·h stable flux model with expanded filtration area, designed for ultra-large-scale high-precision water treatment projects such as municipal central water supply plants, national-level high-tech industrial parks and coastal large-scale high-precision brackish water desalination projects with daily water demand ≥2000 tons); RCP200-60SPP (ultra-large-specification high-flux model with 60 L/m²·h pure water flux, suitable for ultra-large-capacity high-precision water treatment projects with higher water output efficiency requirements); RCP200-30SPP (ultra-large-specification low-flux ultra-high precision model with 30 L/m²·h pure water flux, suitable for ultra-large-capacity water treatment projects with the strictest purification precision requirements such as large semiconductor manufacturing bases). In terms of matching pre-filtration products, the RCP-PRE16 SPP Heavy-Duty Special Pre-Filter is specially designed for the ultra-large-spec high-load SPP series, with a 1 μm ultra-fine coarse filtration precision and a heavy-duty large-flow water channel design optimized for 40 L/m²·h stable flux operation, which can effectively remove fine particle impurities, sand, colloid and suspended solids in raw water, avoid membrane fouling and damage caused by fine particles under high-load large-flow high-precision operation, and extend the service life of the ultra-large-spec SPP membrane core by 30-35%. For professional cleaning products, the RCP-CLE16 SPP Heavy-Duty Membrane Special Deep Cleaning Agent is a three-component high-efficiency cleaning agent (acidic + alkaline + enzymatic) specially formulated for the pollution characteristics of SPP membranes under ultra-large-spec high-load operation and complex raw water quality conditions, which can quickly and effectively remove organic fouling, scale, microbial slime, trace organic deposits and heavy metal ion impurities on the membrane surface without damaging the ultra-dense separation layer, restore the filtration flux and salt rejection performance of the SPP membrane to more than 98% of the original state, and reduce the frequency of core replacement. In terms of intelligent control accessories, the RCP-CONT16 Ultra-Large-Spec SPP Intelligent Operation and Monitoring Unit is perfectly matched with the ultra-large-spec SPP series, which can realize real-time and high-precision monitoring of key operating parameters (flux, pressure drop, inlet/outlet water salinity, TDS, turbidity, temperature, water flow, dissolved oxygen, etc.) for single or multiple parallel units with millisecond-level response, and support automatic alarm, automatic low-pressure backwashing, intelligent CIP cleaning reminder and remote data transmission, greatly improving the automation level and operational stability of ultra-large-capacity high-precision water treatment systems and reducing manual operation and maintenance costs by more than 40%. In addition, the key supporting accessories also include two exclusive heavy-duty products for ultra-large-spec high-load high-precision operation: RCP-ACC15 Ultra-Large-Spec SPP Heavy-Duty Installation Accessory Kit (providing heavy-duty high-pressure anti-leakage connectors, pharmaceutical-grade/food-grade anti-aging gaskets, reinforced fixed brackets and pressure-resistant sealing parts that are resistant to large water flow impact and trace impurity release, supporting quick installation with industrial large-diameter pressure pipelines and ensuring connection airtightness to avoid secondary pollution and pressure loss under large-flow high-precision operation) and RCP-BR14 Medium-Pressure SPP Heavy-Duty Membrane Backwashing Pump (special matching accessory for ultra-large-spec SPP filtration products, realizing efficient variable-pressure reverse backwashing of the membrane core with adjustable pressure and large backwashing flow, further reducing membrane fouling under high-load large-flow high-precision operation, restoring membrane permeability to the greatest extent, and extending the service life of the SPP membrane core by an additional 25-30% without damaging the ultra-dense separation layer). The RCP-MON13 Ultra-Large-Spec SPP Ultra-High Precision Water Quality Analyzer is a top-tier matching accessory for the RCP-CONT16 unit, which can realize real-time and accurate detection of multi-dimensional water quality parameters (TDS, conductivity, pH, ORP, dissolved oxygen, turbidity, trace ions, water flow, etc.) with a wide detection range and 0.01-level high precision, and transmit data to the intelligent control unit in real time, realizing closed-loop high-precision monitoring and intelligent control of the entire ultra-large-capacity high-precision water treatment system.