RCP030-60NPP Water Treatment Filter Cartridge Technical Specification

Product Introduction

The RCP030-60NPP is a high-reliability natural polypropylene (NPP) water filter cartridge, specially engineered for low-medium flow coarse pre-filtration in rural small-scale, light industrial, small commercial and household water treatment scenarios. As a core natural material product of the RCP030 series, it adopts food-grade virgin natural polypropylene raw materials without any modified additives, combined with advanced large-pore gradient melt-blown forming technology, and optimized with a 60NPP core structure to achieve an ideal balance of 60-micron coarse filtration precision, 30L/h stable low-medium flux, high dirt-holding capacity and eco-friendly material properties. The cartridge is manufactured with adhesive-free integrated forming process, free of heavy metals, plasticizers, organic leachables and chemical modifiers, fully complying with FDA, NSF and EU REACH international food-grade and environmental protection standards, ensuring zero secondary pollution to water bodies and meeting the high requirements of eco-friendly water treatment. It is designed as the first-line coarse filtration barrier for raw water with high sediment and impurity content, dedicated to intercepting large suspended solids, 60-micron coarse particulate impurities, sediment lumps, rust and large colloidal aggregates in water, effectively reducing the impurity load of subsequent precision filtration equipment such as mini RO membranes, ultrafiltration membranes and compact water purifiers, and ensuring the stable and efficient operation of the entire low-medium flow water treatment system. The pure natural PP structure makes it highly compatible with various water quality conditions and easy to recycle, perfectly matching the environmental protection and low-cost operation needs of rural and small-scale water treatment scenarios.

Filtration Precision

The RCP030-60NPP features a graded large-pore coarse filtration structure with a nominal filtration precision of 60 microns and an absolute filtration precision of 65 microns. Its multi-layer gradient pore design is crafted with pure natural polypropylene melt-blown technology, consisting of a smooth surface interception layer, a high-capacity impurity storage layer and a high-strength mechanical support layer. This structure can realize targeted and efficient capture of all large impurities with particle sizes above 60 microns in low-medium flow water flow. The dense surface NPP layer effectively blocks coarse particulates, sediment lumps, rust and large colloidal aggregates that are easy to cause physical clogging, wear and pipeline scaling of subsequent miniature precision membrane elements, water pumps and valves; the inner high-capacity storage layer with uniform large pores can store a large amount of intercepted impurities, avoiding rapid blockage of the cartridge and ensuring long-term stable filtration performance. Even under long-term continuous low-medium flow working conditions (≤30L/h) and variable low inlet pressure environments (0.06-0.2MPa), this structural design can keep the filtration precision stable and unattenuated throughout the entire service cycle, without precision degradation caused by material aging or additive loss.

Flux

Under the standard operating conditions (25℃ ambient temperature, 0.15MPa inlet pressure, pure water medium), the pure water flux of the RCP030-60NPP is stably set at 30 L/h (liters per hour), the core low-medium flow design advantage of this product. Within the recommended operating pressure range of 0.06-0.2MPa, the flux variation rate is less than 4%, maintaining ultra-stable water output for small-scale water treatment systems with low and unstable inlet pressure such as rural gravity water supply and household tap water. When the water temperature is in the range of 5-50℃ (the optimal working temperature for rural, household and light industrial small-scale water purification systems), the flux changes linearly with temperature, and the flux recovery rate reaches 100% when the temperature returns to the standard value, without permanent flux loss caused by thermal deformation of materials. For actual raw water with turbidity ≤40 NTU (the recommended working turbidity for high-impurity coarse pre-filtration scenarios), the actual operating flux can still maintain more than 29 L/h, fully meeting the low-medium flow, stable water supply and coarse pre-filtration requirements of rural small-scale, light industrial, small commercial and household water treatment systems.

Salt Rejection Rate

As a low-medium flow natural polypropylene coarse filtration cartridge, the RCP030-60NPP is optimized for the physical interception of non-ionic salt contaminants, coarse colloidal salt particles, insoluble salt precipitates and salt-containing sediment aggregates with particle sizes above 60 microns, with a salt rejection rate of ≥99.8% for insoluble salt particulates and salt-containing colloidal aggregates with particle sizes above 60 microns. For soluble inorganic salts, it serves as a professional eco-friendly coarse pre-filtration component for small-scale desalination systems such as mini RO and compact NF membranes, which can effectively reduce the coarse particulate salt load in the feed water of subsequent small precision desalination membrane elements (with limited effective area), avoid salt scaling and particulate fouling on the membrane surface, thus improving the overall salt rejection efficiency of the desalination system and extending the service life of membrane elements by more than 40%. In addition, the pure natural NPP material structure can intercept more than 99.5% of coarse macromolecular organic salts and salt-containing impurity lumps in low-medium flow water systems without chemical reaction with salt substances, further optimizing the feed water quality for subsequent precision purification equipment and reducing the maintenance frequency of the whole system.

Pressure Drop

Under the rated flux (30 L/h) and standard operating conditions, the initial pressure drop of the RCP030-60NPP is ≤0.005MPa, the ultra-low pressure drop advantage of the large-pore coarse filtration structure made of pure natural polypropylene. This value is significantly lower than that of modified PP filter cartridges of the same precision, realizing ultra-low energy consumption operation of low-medium flow water treatment systems. Even for low-pressure raw water supply scenarios such as rural gravity water supply, household tap water without booster pumps and small commercial low-pressure water supply, no additional booster pump is needed to ensure normal water flow. With the progress of filtration work and the gradual accumulation of intercepted coarse impurities, the pressure drop of the cartridge rises extremely slowly due to its high dirt-holding capacity and uniform large-pore structure; the recommended maximum allowable operating pressure drop is 0.08MPa. When the pressure drop reaches this threshold, the cartridge needs to be cleaned or replaced in time to avoid excessive pressure loss leading to reduced water supply flow of small-scale systems, abnormal operation of subsequent precision equipment and even structural damage to the cartridge caused by pressure accumulation in the compact filter housing.

Molecular Weight Cutoff (MWCO)

The molecular weight cutoff of the RCP030-60NPP is precisely calibrated to 750,000 Daltons (Da), which is perfectly matched with its 60-micron coarse filtration precision and natural polypropylene large-pore gradient melt-blown structure. This MWCO rating is designed for the physical interception characteristics of pure natural PP materials, which can effectively retain extra-large macromolecular organic matter, coarse colloidal particles, macromolecular impurity aggregates, organic polymer lumps and humic acid aggregates with molecular weight higher than 750,000 Da in low-medium flow water systems. At the same time, it ensures the unimpeded passage of water molecules, small-molecular inorganic substances, trace beneficial ions and small suspended particles (below 60 microns), without affecting the normal water permeability of the system due to material adsorption. It is specially designed for the coarse pre-filtration requirements of low-medium flow, low-pressure water treatment systems with high raw water impurity content, and can effectively reduce the large molecular contaminant load of subsequent miniature precision membrane elements, avoiding membrane clogging and improving the overall operation efficiency of small-scale purification systems by more than 35%.

Membrane Thickness

The RCP030-60NPP adopts a three-layer composite natural polypropylene membrane structure adapted to 60-micron large-pore coarse filtration and low-medium flow design, with a total effective membrane thickness of 21mm. The membrane structure is all made of food-grade virgin natural polypropylene, without any modified additives, ensuring the purity and environmental protection of the material. The surface filtration layer (5mm) is a dense natural PP membrane with uniform large pores, responsible for precision interception of 60-65 micron coarse particulates, with excellent wear resistance and anti-scouring performance suitable for raw water with high sediment and rust content; the middle transition support layer (11mm) is a high-capacity gradient pore natural PP membrane, the core dirt-holding area of the cartridge, which undertakes secondary interception of large impurities and provides stable three-dimensional structural support for the surface layer, with large internal space for storing sediment, rust lumps and other coarse impurities; the bottom base layer (5mm) is a high-density natural PP membrane with high mechanical strength, enhancing the overall pressure resistance, extrusion resistance and impact resistance of the cartridge while ensuring the structural stability of the melt-blown large-pore structure. This scientific three-layer thickness distribution balances high coarse filtration efficiency, high dirt-holding capacity and moderate structural compactness, making the cartridge resistant to deformation and rupture under long-term low-pressure, low-medium flow and high-impurity raw water scouring conditions, and suitable for installation in small and medium-size standard filter housings (food-grade plastic/304 stainless steel).

Replacement Cycle

The recommended standard replacement cycle of the RCP030-60NPP is 6-9 months, formulated based on the standard low-medium flow coarse pre-filtration working conditions: raw water turbidity ≤40 NTU, suspended solids content ≤45 mg/L, and 10-16 hours of daily operation (matching rural/light industrial/small commercial/household use habits). The pure natural PP material has good anti-aging performance, which can maintain stable structural performance under long-term water immersion conditions. For low-medium flow water treatment systems with extremely harsh water quality conditions (turbidity >40 NTU, suspended solids content >45 mg/L) such as rural surface water (river/lake water), groundwater with high sediment content and industrial low-grade raw water, the replacement cycle is shortened to 4-6 months according to the actual system pressure drop and water quality test results; for ultra-low-turbidity high-quality raw water pre-filtration scenarios (turbidity ≤10 NTU) such as household direct drinking water pre-filtration, small commercial pure water preparation and laboratory water purification, with regular simple backwashing (water flushing) and routine maintenance, the replacement cycle can be appropriately extended to 9-12 months, effectively reducing the use and maintenance costs of small-scale water treatment systems by more than 35%.

Features

100% Food-Grade Virgin Natural PP Raw Material: Adopts pure natural polypropylene without any modified additives, chemical modifiers or recycled materials, ensuring the purity and environmental protection of the material, acid and alkali resistant (pH 2-13), corrosion resistant to common drinking water and light industrial water additives, and highly adaptable to various poor-quality raw water.
60-Micron Large-Pore Gradient Melt-Blown Structure: Advanced multi-layer large-pore gradient melt-blown technology with natural PP material forms a three-dimensional porous structure, realizing targeted interception of large impurities above 60 microns, high dirt-holding capacity, extremely slow pressure drop rise, and stable filtration performance under long-term low-medium flow operation.
Ultra-Low Initial Pressure Drop: Optimized large-pore size distribution and thickened dirt-holding layer design result in an initial pressure drop of ≤0.005MPa, no need for booster pumps even for low-pressure gravity water supply, realizing energy-saving, quiet and low-cost operation of low-medium flow water systems.
Adhesive-Free Integrated Melt-Blown Forming: Adopts advanced one-piece melt-blown welding forming technology, no adhesives, no seams, no filter bypass and no dead angles, avoiding unfiltered water leakage and chemical leaching from adhesives, ensuring the purity of filtered water in coarse pre-filtration links.
Excellent Structural Stability & Pressure Resistance: 21mm composite natural PP membrane structure with high-strength internal core support, can withstand a maximum operating pressure of 0.5MPa, no deformation, no rupture and no delamination under low-pressure impact, high-impurity raw water scouring and long-term continuous operation.
Easy Clean & Reusable for Multiple Times: For slight to moderate blockage, the filtration performance can be quickly recovered by simple water backwashing (no need for gas-water mixing), the pure natural PP surface is not easy to adhere to impurities, and the cartridge can be reused for many times, greatly reducing the replacement frequency and overall use cost.
Standard Compact Interface Design: RCP030 series standard compact structural design, matching universal small and medium-size filter housings (food-grade PP plastic/304 stainless steel), small installation space, no special installation tools required, quick disassembly and assembly, and convenient on-site replacement and maintenance for rural, household and mobile scenarios.
Eco-Friendly & Recyclable: The whole cartridge is made of homogeneous natural polypropylene material, no mixed materials, the spent cartridge can be 100% recycled as PP plastic raw material, meeting national and international environmental protection recycling requirements, and reducing environmental pollution.
Drinking Water Grade Safety: Free of any harmful substances such as heavy metals, phthalates, plasticizers and chemical additives, fully compliant with FDA/NSF/EU REACH international drinking water material standards, no chemical leaching in long-term contact with water, safe for direct drinking water pre-filtration.
Wide Temperature & Water Quality Adaptability: Can work stably in the water temperature range of 0-60℃, suitable for low-medium flow water treatment systems with slight temperature changes; the pure natural PP structure is highly adaptable to various poor-quality raw water, including rural surface water, groundwater, industrial low-grade raw water and tap water with serious rust, without material degradation caused by water quality.
Low Adsorptivity: The pure natural polypropylene material has low surface adsorptivity, no adsorption of water-soluble beneficial ions and small-molecular organic substances in water, ensuring the original water quality characteristics while filtering impurities.

Application Fields

Rural Centralized Small-Scale Water Supply Coarse Pre-Filtration: Coarse pre-filtration of rural centralized tap water supply systems, village-level water purification stations, household small-scale water supply equipment and mountain area gravity water supply systems, removing sediment, rust and large particulates in surface water and groundwater, improving the basic water quality of rural drinking water, and meeting the environmental protection requirements of rural water treatment.
Household Whole-House & Direct Drinking Water Pre-Filtration: Coarse pre-filtration of household whole-house water purification systems, under-sink water purifiers, direct drinking water fountains and kitchen water filters, serving as the first-line filtration barrier to intercept sediment, rust and large particulates in tap water, protecting subsequent precision water purification components and household water appliances (water heaters, water dispensers).
Light Industrial Low-Grade Raw Water Pre-Filtration: Coarse pre-filtration of low-medium flow auxiliary water supply systems in small workshops, hardware processing, plastic production and daily chemical production auxiliary processes, removing coarse impurities in industrial low-grade raw water, protecting subsequent water pumps, pipelines and precision processing equipment, and meeting the environmental protection production requirements of light industry.
Small Commercial Drinking Water Systems Coarse Filtration: Coarse pre-filtration of under-sink water purifiers, small commercial drinking fountains and direct drinking water equipment in small offices, rural supermarkets, community convenience stores and small catering premises, intercepting large impurities in raw water, protecting subsequent precision water purification components, and meeting the food-grade water quality requirements of small commercial scenarios.
Laboratory Water Purification Coarse Pre-Filtration: Coarse pre-filtration of medium-sized laboratory water purifiers, ultra-pure water preparation systems and experimental water supply equipment, removing large particulates, sediment and rust in raw water, protecting subsequent precision membranes, sensors and liquid chromatography testing equipment, and the pure natural PP material avoids chemical contamination of experimental water.
Small-Scale RO/NF Desalination Systems Coarse Pre-Filtration: Special eco-friendly coarse pre-filtration for mini reverse osmosis and nanofiltration desalination systems in small coastal workshops, island mini water supply stations and rural small-scale brackish water desalination equipment, protecting miniature desalination membrane elements and improving the overall operation efficiency and service life of the desalination system.
Aquaculture & Aquarium Water Coarse Filtration: Coarse filtration of medium-sized aquarium circulating water systems and small-scale indoor/outdoor aquaculture (fish/shrimp/aquatic plants) water supply systems, removing residual bait, fish feces lumps, large suspended solids and algae aggregates, optimizing the aquaculture water quality environment, and the pure natural PP material is non-toxic and harmless to aquatic organisms.
Mobile Low-Medium Flow Water Purification Coarse Filtration: Coarse pre-filtration of RV on-board medium-flow water purifiers, yacht water supply systems, marine portable water purification equipment and construction site temporary water supply purifiers, adapting to the low-pressure, variable-flow and high-impurity raw water characteristics of mobile and temporary scenarios, and easy to replace and carry.
Agricultural Small-Scale Irrigation Water Purification: Coarse pre-filtration of small-scale agricultural drip irrigation, sprinkler irrigation and greenhouse water supply systems, removing sediment and large particulates in irrigation water, protecting drip irrigation nozzles and sprinkler heads from clogging, improving irrigation efficiency, and the pure natural PP material is harmless to crops and soil.

Conclusion

The RCP030-60NPP is a high-performance, eco-friendly and cost-effective natural polypropylene filter cartridge specially developed for low-medium flow coarse pre-filtration scenarios including rural small-scale, household, light industrial and small commercial water treatment. It integrates the core advantages of 60-micron high-efficiency large-pore coarse filtration, 30L/h stable low-medium flux, ultra-low initial pressure drop, high dirt-holding capacity, 100% natural food-grade material and eco-friendly recyclable properties. Based on food-grade virgin natural polypropylene raw materials without any modified additives and advanced large-pore gradient melt-blown forming technology, the product has excellent chemical stability, structural stability and pressure resistance, and can maintain stable and efficient filtration performance under long-term low-pressure, low-medium flow and intermittent/continuous operation modes, even in the face of raw water with high sediment, rust and colloid content. Its ultra-low initial pressure drop design realizes energy-saving and low-cost operation of low-medium flow water systems without additional booster pumps, which is especially suitable for rural gravity water supply and household low-pressure tap water scenarios with limited supporting equipment. The easy water backwashing performance and long replacement cycle greatly lower the daily use and maintenance costs of small-scale purification systems, while the pure natural material properties ensure zero secondary pollution to water bodies and compliance with international environmental protection and drinking water safety standards. With a standard compact interface and moderate size, the RCP030-60NPP can be widely applied to coarse pre-filtration of various low-medium flow water treatment systems, serving as the most reliable and eco-friendly first-line coarse filtration barrier to provide durable and stable front-end protection for subsequent precision filtration equipment. It effectively reduces the heavy impurity load of subsequent precision equipment, optimizes the overall operation efficiency of small-scale systems, and reduces the failure rate and maintenance cost of subsequent precision equipment by more than 40%. As a professional low-medium flow coarse pre-filtration filter cartridge with excellent comprehensive performance, eco-friendly material properties and strong environmental adaptability, the RCP030-60NPP is a reliable and cost-effective choice for rural small-scale, household, light industrial and small commercial water purification scenarios. It not only meets the practical needs of water purification and system protection, but also conforms to the global environmental protection development trend, and can create significant practical, economic and environmental benefits for the safe, stable, energy-saving and eco-friendly operation of low-medium flow water treatment and purification systems in various scenarios.

Related products

RCP030-40NPP: Higher precision version of the same series, 40 micron nominal filtration precision, 30L/h flux, made of 100% natural PP material, suitable for small commercial and laboratory water treatment with slightly stricter coarse filtration requirements.
RCP030-80NPP: Coarser filtration version of the same series, 80 micron nominal filtration precision, 35L/h flux, natural PP large-pore structure, suitable for rural surface water and industrial raw water with extremely high sediment content for rough pre-filtration.
RCP030-60NPP-S: Sanitary grade enhanced version, food-grade ultra-smooth natural PP membrane, no dead angle compact design, suitable for medical laboratory, small food processing and rural central drinking water supply systems with high sanitary requirements.
RCP030 Series Eco-Friendly Filter Housing: Special matching filter housing for RCP030 series natural PP cartridges, made of food-grade recycled PP plastic/304 stainless steel, with pressure gauge and blowdown valve interface, compact structure, meeting environmental protection requirements, suitable for rural and small commercial scenarios.
RCP030-60NPP-M: Anti-scaling natural PP version, added with food-grade mineral anti-scaling additives (no chemical modifiers), suitable for low-medium flow water treatment systems with high-hardness groundwater, rural surface water and household tap water with high mineral content.
RCP050-60NPP: Medium-flow version of the same precision, 50L/h flux, RCP050 series interface, made of 100% natural PP material, suitable for medium-sized offices, chain stores and light industrial workshops with higher water demand for coarse pre-filtration.
RCP030 Household Backwashing Accessory Kit: Special simple backwashing kit for RCP030 series cartridges, including high-pressure flushing nozzle and connecting pipe, suitable for household and rural on-site manual water backwashing, improving cartridge utilization rate by more than 50%.
RCP030-60NPP-C: Activated carbon composite natural PP version, integrated natural PP coarse filtration and food-grade coconut shell activated carbon adsorption, removing both coarse particulates and residual chlorine/odors/organic matter in water, suitable for household and small commercial drinking water purification.
RCP030 Series Portable Water Quality Test Kit: Special lightweight test kit for RCP030 series cartridges, including turbidity test paper and mini pressure drop detector, convenient for household and rural on-site detection to judge cartridge replacement time.
RCP030-60NPP-F: Anti-fouling natural PP version, added with food-grade silver ion anti-bacterial coating (no harmful additives), suitable for small-scale aquaculture, aquarium, household drinking water and catering industry low-medium flow water purification systems.
RCP010-60NPP: Low-flow version of the same precision, 10L/h flux, RCP010 series compact design, natural PP material, suitable for household under-sink water purifiers and desktop laboratory water purification equipment with low water demand.
RCP030 Series Natural PP Cartridge Fixed Bracket: Special plastic fixed bracket made of recycled PP material, suitable for vertical and horizontal installation of filter housings in household and rural water treatment scenarios, improving the installation stability of the cartridge and meeting environmental protection requirements.

RCP030-60NPP 60 Micron Natural Polypropylene Filter Cartridge 30L/h Low-Medium Flow for Water Treatment Coarse Pre-Filtration