Product Introduction
This Deep-Layer PP Wire-Wound Filter Cartridge is a professional high-efficiency front-end security filtration component custom-engineered for electronic ultrapure water systems, manufactured with high-purity electronic-grade polypropylene (PP) wire as the core raw material and adopting advanced multi-gradient deep-layer spiral winding technology. Tailored to the stringent front-end pre-filtration requirements of electronic ultrapure water systems (for semiconductor, PCB, photovoltaic and microelectronic manufacturing), it is specially designed for the security filtration link before core purification units such as reverse osmosis (RO), nanofiltration (NF) and electrodeionization (EDI). The deep-layer PP wire-wound structure forms a three-dimensional gradient filtration matrix, which realizes step-by-step interception of impurities from large to small particles, and the all-electronic-grade PP integral structure features low extractables, no material shedding, excellent chemical compatibility and absolute non-toxicity, without secondary pollution to the raw water of ultrapure water systems. It efficiently removes suspended solids, colloidal particles, rust slag, micro-particles and other insoluble impurities in the front-end raw water of electronic ultrapure water systems, protects the high-value core membrane components and EDI modules from impurity wear, blockage and irreversible pollution, ensures the stable and efficient operation of the entire electronic ultrapure water system, and lays a solid foundation for the production of ultrapure water meeting the electronic manufacturing grade (resistivity ≥18.2 MΩ·cm). As a key front-end security filter element, it effectively extends the service life of core purification equipment and reduces the overall operation and maintenance cost of the ultrapure water system.
Filtration Precision
The Deep-Layer PP Wire-Wound Filter Cartridge is optimized for the front-end security filtration demand of electronic ultrapure water systems, with standard high-precision filtration precision grades covering 1 μm to 20 μm, including the core specifications of 5 μm, 10 μm and 20 μm that are most widely used in electronic ultrapure water front-end pre-filtration. The multi-gradient deep-layer winding design forms a graded filtration structure with large pore size on the outside and small pore size on the inside, which can realize targeted step-by-step interception of different particle size insoluble impurities in the raw water—from large suspended solids and rust slag to fine colloidal particles and micro-powder impurities. Adopting a precise winding process with electronic-grade ultra-fine PP wire, the filter layer has a highly consistent pore size distribution without pinhole, channeling or dead zone defects, thoroughly removing all insoluble particulate impurities larger than the rated precision in the front-end raw water of the ultrapure water system. This stable and high-precision filtration performance ensures that the raw water entering the RO/NF/EDI core units meets the strict inlet water impurity control standards, fundamentally eliminating the risk of core purification components being damaged by particulate impurities.
Flux
Benefiting from the unique multi-gradient deep-layer winding structure, large three-dimensional effective filtration area, high-permeability electronic-grade PP raw material and scientific pore size gradient distribution design, this filter cartridge exhibits excellent and stable high-flux performance under the front-end security filtration working condition of electronic ultrapure water systems. Under the standard operating conditions of 25℃ and 0.2MPa inlet pressure, the initial pure water flux of a single cartridge reaches 80-140 L/m²·h, and the actual stable working flux for the front-end raw water security filtration of electronic ultrapure water systems remains at 50-90 L/m²·h for a long time. The deep-layer three-dimensional filtration matrix effectively avoids the surface blockage of the filter layer, and the flux attenuation rate is extremely low even in the long-term filtration of raw water with a certain content of suspended solids. This high-flux and low-attenuation performance can fully match the water supply flow demand of medium and large-scale electronic ultrapure water systems, ensure the unobstructed front-end water supply of the system, and avoid the reduction of ultrapure water production efficiency caused by insufficient filtration flux of the front-end security filter.
Salt Rejection Rate
As a dedicated front-end security filtration component for electronic ultrapure water systems, this Deep-Layer PP Wire-Wound Filter Cartridge is designed for the efficient interception of insoluble particulate impurities, suspended solids and macromolecular colloids in raw water, and does not have the ion separation, desalination or soluble substance rejection function of RO/NF membrane components. Its salt rejection rate is 0%, which means it only retains insoluble solid impurities in the front-end raw water while allowing all soluble inorganic salt ions, small molecular weight organic substances and water molecules to pass through the filter layer smoothly. This characteristic is fully in line with the core demand of electronic ultrapure water system front-end security filtration, which only needs to remove insoluble particulate impurities for the protection of core purification units, and the soluble salt ions and other impurities are left to be removed by the subsequent RO/NF/EDI core purification processes, realizing the rational division of labor and efficient matching of the whole ultrapure water purification system.
Pressure Drop
The product is specially designed with an ultra-low pressure drop optimization structure for the front-end security filtration of electronic ultrapure water systems, fully considering the pressure loss control requirements of the whole water supply system and the working pressure range of core purification units such as RO membranes. The multi-gradient deep-layer winding structure and scientific pore size distribution effectively reduce the liquid flow resistance, and the high-permeability electronic-grade PP wire material further improves the water passing performance of the filter layer. Under the rated working flux and standard temperature conditions, the initial pressure drop of a single filter cartridge is only 0.008-0.025 MPa, which minimizes the raw water flow resistance in the front-end security filtration link, effectively reduces the load and energy consumption of the ultrapure water system’s water supply pump and high-pressure pump, and ensures the stable working pressure of the entire ultrapure water purification system. During long-term continuous use, due to the three-dimensional deep-layer impurity interception characteristic and high impurity-holding capacity of the filter layer, the pressure drop of the cartridge rises slowly and linearly; the maximum allowable operating pressure drop is 0.12 MPa. When the system pressure drop reaches this value, replacement is recommended in a timely manner to avoid the impact of excessive pressure loss on the normal water supply of the ultrapure water system and the working efficiency of core purification units.
Molecular Weight Cutoff (MWCO)
This Deep-Layer PP Wire-Wound Filter Cartridge has a precise and targeted molecular weight cutoff range of 50,000 to 250,000 Daltons, which is specially calibrated for the front-end security filtration demand of electronic ultrapure water systems. It can effectively intercept macromolecular substances in the raw water such as colloidal silicon dioxide, humic acid macromolecular aggregates, metal hydroxide macromolecular flocs, polymer organic colloids and suspended solid macromolecular aggregates that may cause pollution and blockage to RO/NF membranes and EDI modules. The strict and reasonable MWCO control ensures that small molecular weight inorganic salt ions, water molecules and low molecular weight organic substances pass through the filter layer smoothly while realizing the efficient interception of all harmful macromolecular insoluble impurities, and provides reliable molecular-level impurity protection for the core purification components of electronic ultrapure water systems.
Membrane Thickness
The electronic-grade PP wire-wound filter layer of this deep-layer filter cartridge adopts a multi-gradient three-dimensional deep-layer spiral winding design with a uniform total effective filter layer thickness of 100-180 μm, and the diameter of the electronic-grade PP wire is precisely controlled in a gradient from 0.2-0.35 mm (outer layer) to 0.08-0.15 mm (inner layer) to form the graded pore size filtration structure of large outside and small inside. The inner and outer sides of the deep-layer filter layer are equipped with high-density, low-resistance, anti-shedding electronic-grade PP mesh protective layers with a thickness of 70-90 μm each, which can effectively fix the deep-layer winding structure and prevent the filter layer from being damaged by the raw water flow impact. The inner skeleton is a reinforced electronic-grade PP support structure with high rigidity, low extractables, excellent pressure resistance and uniform water distribution performance, which ensures the structural stability of the deep-layer filter layer under long-term water pressure and avoids the collapse of the filter layer affecting the filtration effect. The gradient thickness and three-dimensional deep-layer design not only ensure the high-precision impurity interception performance and sufficient mechanical strength of the cartridge, but also maximize the effective impurity-holding space and improve the permeability of the filter layer. The electronic-grade PP raw material and precise gradient winding process ensure that the filter layer has no fiber shedding, material dissolution or deformation in the raw water for a long time, avoiding secondary pollution to the ultrapure water system raw water and meeting the strict front-end security filtration requirements of electronic ultrapure water manufacturing.
Replacement Cycle
Under the normal operating conditions of electronic ultrapure water system front-end security filtration (raw water turbidity ≤5 NTU, suspended solid content ≤10 mg/L, 24-hour continuous stable filtration, regular mild backwashing with filtered water), the recommended replacement cycle of this Deep-Layer PP Wire-Wound Filter Cartridge is 3-6 months. If the raw water quality of the ultrapure water system is poor (turbidity >5 NTU, high suspended solid content) or the ultrapure water production load is high (such as mass production of semiconductors, high-efficiency photovoltaic cells and fine-line PCBs), the replacement cycle should be appropriately shortened to 1-3 months. In addition, when the pressure drop of the front-end security filtration link reaches the maximum allowable value of 0.12 MPa, or the filtration flux decreases significantly and cannot be restored after backwashing, or the filter layer is damaged by large particle impurities, the filter cartridge should be replaced immediately to ensure the security filtration effect of the ultrapure water system front-end, protect the core purification components and avoid the reduction of ultrapure water production quality and efficiency.
Features
- Multi-gradient deep-layer filtration structure: Unique three-dimensional gradient winding design with large pore size outside and small inside, realizing step-by-step impurity interception, avoiding surface blockage and improving impurity-holding capacity and flux stability.
- Electronic-grade high-purity PP raw material: All components adopt low-extractables electronic-grade PP, no toxicity, no material shedding, no organic matter dissolution, avoiding secondary pollution to ultrapure water system raw water and meeting electronic manufacturing standards.
- High-precision security filtration: 1-20 μm multi-specification precision options, uniform pore size distribution without defects, thoroughly removing insoluble impurities in raw water and providing reliable front-end protection for RO/NF/EDI core components.
- Ultra-low pressure drop & energy saving: Optimized gradient structure and high-permeability PP material, minimal initial pressure drop and slow pressure rise, reducing the load of system water supply/high-pressure pumps and improving the overall energy efficiency of the ultrapure water system.
- High flux with low attenuation: Large three-dimensional effective filtration area, deep-layer impurity interception characteristic, extremely low flux attenuation rate in long-term use, matching the large-flow water supply demand of electronic ultrapure water systems.
- Super high impurity-holding capacity: Three-dimensional deep-layer filter layer with large void volume, which can store a large amount of suspended solids and particulate impurities, extending the replacement cycle and reducing the maintenance frequency.
- Excellent mechanical strength: Reinforced electronic-grade PP inner skeleton and high-density protective mesh, resistant to raw water flow impact and pressure fluctuation, no filter layer collapse or deformation under 24-hour continuous operation.
- Wide chemical compatibility: Resistant to various inorganic acids, alkalis and neutral raw water media in electronic ultrapure water systems, no chemical reaction or dissolution, adapting to different raw water quality conditions of ultrapure water systems.
- Standardized universal design: Conforms to the universal installation standard of security filter housings in electronic ultrapure water systems, direct replacement without modifying the system structure, easy installation and on-site maintenance.
Application Fields
This Deep-Layer PP Wire-Wound Filter Cartridge is a dedicated front-end security filtration component for electronic ultrapure water systems, and is widely used in the front-end pre-filtration link of ultrapure water systems in various electronic high-tech manufacturing industries, covering semiconductor chip manufacturing, PCB printed circuit board production, photovoltaic cell/module manufacturing, microelectronic component processing, LED display production and aerospace electronic component manufacturing. In semiconductor manufacturing, it is applied to the front-end security filtration of ultrapure water systems for wafer cleaning, etching and ion implantation links, protecting RO/NF/EDI core components and ensuring the production of ultra-high purity water meeting SEMI standards. In PCB production, it is used for the front-end pre-filtration of ultrapure water systems for circuit board cleaning, developing and etching processes, avoiding core purification component damage and ensuring the cleanliness of PCB production water. In photovoltaic manufacturing, it is dedicated to the front-end security filtration of ultrapure water systems for silicon wafer cutting, texturing and passivation links, matching the large-flow ultrapure water demand of photovoltaic production lines and protecting core purification equipment. It is suitable for medium and large-scale electronic ultrapure water systems of all specifications, and can be used in the security filtration link before RO, NF, EDI, ultrafiltration (UF) and mixed bed ion exchange units. In addition, it can also be applied to the front-end security filtration of pure water/ultrapure water systems in the pharmaceutical, food and beverage and precision chemical industries with similar pre-filtration requirements.
Conclusion
To sum up, this Deep-Layer PP Wire-Wound Filter Cartridge is a high-performance, professional dedicated front-end security filtration component custom-developed for electronic ultrapure water systems, perfectly meeting the stringent front-end pre-filtration requirements and core purification component protection needs of electronic high-tech manufacturing ultrapure water systems. Its core advantages of multi-gradient deep-layer filtration structure, electronic-grade high-purity raw material, high-precision impurity interception, ultra-low pressure drop, high flux with low attenuation and super high impurity-holding capacity perfectly solve the pain points of front-end filter layer surface blockage, high pressure drop rise rate, insufficient impurity-holding capacity and core purification component easy to be polluted in electronic ultrapure water systems. The all-electronic-grade PP structural design ensures no secondary pollution to the raw water, and the multi-gradient deep-layer filtration effectively removes all insoluble particulate impurities in the front-end raw water, providing a reliable “security barrier” for the RO/NF/EDI core purification components of the ultrapure water system, avoiding the wear, blockage and irreversible pollution of high-value core equipment, and effectively extending the service life of core purification components by more than 50%. As a key front-end filtration element, it not only ensures the stable, efficient and continuous operation of the entire electronic ultrapure water system, but also reduces the frequency of filter cartridge replacement and core equipment maintenance, significantly cutting down the overall operation and maintenance cost of the ultrapure water system. At the same time, its high-flux and low-pressure drop characteristics ensure the production efficiency of ultrapure water and meet the large-flow ultrapure water demand of electronic high-tech manufacturing production lines. With the characteristics of excellent filtration performance, strong compatibility, easy installation and high cost performance, it has become an indispensable core front-end security filtration component for electronic ultrapure water systems in the electronic manufacturing industry, providing a stable, efficient and reliable pre-filtration solution for the production of high-purity ultrapure water and the high-quality development of electronic high-tech manufacturing.
Related products
- Pleated PP High-Precision Filter Cartridge: A 0.1-1 μm ultra-precision filtration component for the fine pre-filtration of electronic ultrapure water systems, suitable for the security filtration link before EDI units in high-end semiconductor manufacturing ultrapure water systems.
- 304/316L Stainless Steel Sanitary Filter Housing: A dedicated pressure-resistant filter housing customized for this deep-layer PP filter cartridge, in line with the clean production requirements of electronic ultrapure water systems and suitable for front-end security filtration units.
- RO Reverse Osmosis Membrane Element: The core desalination component of electronic ultrapure water systems, matched with this front-end security filter cartridge to realize deep desalination of raw water and produce high-purity pure water.
- EDI Electrodeionization Module: The terminal purification component of electronic ultrapure water systems, used with this filter cartridge to produce ultrapure water with resistivity ≥18.2 MΩ·cm for electronic manufacturing.
- UF Ultrafiltration Membrane Module: A pre-purification component for electronic ultrapure water systems, matched with this deep-layer filter cartridge to further remove macromolecular colloids and suspended solids in raw water.
- Cartridge Filter Housing with Flange Connection: A large-flow security filter housing for medium and large-scale electronic ultrapure water systems, suitable for multi-cartridge parallel installation of this deep-layer PP filter cartridge.
- Ultrapure Water Online Tester: A professional detection equipment for electronic ultrapure water systems, real-time monitoring of water resistivity, turbidity and particle content to prompt filter cartridge replacement and system maintenance.
- Filter Cartridge Backwash System for Ultrapure Water: A supporting self-cleaning system for electronic ultrapure water system security filter housings, realizing online backwashing of the deep-layer filter cartridge to clean intercepted impurities and extend the service life.
- PP Sediment Filter Bag: A large-flow coarse filtration component for the primary pre-filtration of electronic ultrapure water system raw water, intercepting large-particle suspended solids and rust slag to protect this deep-layer PP wire-wound filter cartridge.
- Mixed Bed Ion Exchange Resin: The terminal purification material for electronic ultrapure water systems, matched with this front-end security filter cartridge to further remove trace ion impurities and improve water purity.
- Acid-Alkali Resistant Sealing Ring for Filter Cartridges: A food-grade/electronic-grade dedicated sealing accessory for this filter cartridge, ensuring the sealing performance of the security filter housing and avoiding raw water short circuit and leakage.
- Filter Cartridge Integrity Tester: A professional detection tool for electronic ultrapure water systems, testing the filtration integrity of the deep-layer PP filter cartridge to ensure no particle leakage and reliable front-end security filtration.
