Coarse Filtration PP Wound Filter Cartridge: Filter Cartridge for Removing Large Particle Impurities from Raw Water Inlet
Product Introduction
This Coarse Filtration PP Wound Filter Cartridge is a specialized pre-filtration component engineered for the raw water inlet link of various water treatment systems, manufactured with high-quality polypropylene (PP) fiber as the core raw material and advanced loose-to-medium precision winding technology. Designed exclusively for the primary coarse filtration demand of raw water inlet, it is dedicated to efficiently removing large particle impurities in raw water at the source, acting as the first protective barrier of the entire water treatment system. The all-PP structural design ensures excellent chemical stability, acid and alkali resistance, and non-toxicity, with no secondary pollution to the filtered water. It features a high impurity-holding capacity for large particles and a simple structural design that is easy to install and replace, perfectly adapting to the complex raw water quality conditions of different water treatment scenarios, and effectively reducing the filtration pressure of subsequent fine filtration and precision filtration components to extend their service life.
Filtration Precision
The Coarse Filtration PP Wound Filter Cartridge is optimized for coarse filtration scenarios, with standard filtration precision grades ranging from 5 μm to 200 μm, and the most commonly used specifications of 50 μm, 100 μm and 200 μm for targeted removal of large particle impurities. The PP fiber is wound with a reasonable loose density, and the filter layer has a wide and unobstructed pore structure, which can efficiently intercept large suspended solids, sediment, sand grains, rust particles, fiber impurities and other insoluble large particles in raw water, without causing unnecessary blockage due to overly dense filtration precision. The uniform pore size distribution of the filter layer ensures consistent coarse filtration efficiency of the whole cartridge, effectively separating large particle impurities from raw water at the inlet link.
Flux
Benefiting from the coarse filtration precision design and unobstructed filter layer pore structure, this filter cartridge exhibits excellent high-flux performance, perfectly adapted to the large-flow raw water inlet demand of water treatment systems. Under the standard operating conditions of 25℃ and 0.2MPa inlet pressure, the initial pure water flux of a single cartridge reaches 200-300 L/m²·h, and the actual stable working flux for raw water coarse filtration remains at 150-250 L/m²·h for a long time. Even when the raw water inlet contains a certain amount of large particle impurities, the flux attenuation rate is extremely low, which can ensure the unobstructed raw water input of the entire water treatment system, and avoid the reduction of system processing efficiency due to insufficient flux of the inlet pre-filtration link.
Salt Rejection Rate
As a dedicated coarse filtration component for raw water inlet, this PP wound filter cartridge is only designed for the solid-liquid separation of large particle insoluble impurities, and does not have the ion separation and rejection function of reverse osmosis, nanofiltration and other precision membrane components. Its salt rejection rate is 0%, which means it only intercepts large particle impurities in raw water while allowing all soluble salt ions, mineral substances, small molecular weight organic matter and water molecules to pass through the filter layer smoothly. This characteristic is perfectly in line with the demand of raw water inlet coarse filtration, which only needs to remove large particles without changing the original soluble component composition of raw water, and lays a good foundation for the subsequent fine filtration and purification processes of the water treatment system.
Pressure Drop
The product is specially designed with an ultra-low pressure drop structure for the raw water inlet coarse filtration scenario. Under the rated working flux and standard temperature conditions, the initial pressure drop of a single filter cartridge is only 0.005-0.02 MPa, which minimizes the water flow resistance of the raw water inlet link and almost does not increase the energy consumption of the system’s water pump. During long-term use, even after intercepting a large amount of large particle impurities, the pressure drop of the cartridge rises slowly; the maximum allowable operating pressure drop is 0.15 MPa. When the system pressure drop reaches this value, replacement is recommended in a timely manner to ensure the unobstructed raw water inlet and the normal operating pressure of the subsequent water treatment process.
Molecular Weight Cutoff (MWCO)
This Coarse Filtration PP Wound Filter Cartridge has a high molecular weight cutoff range of 600,000 to 1,500,000 Daltons, which is specially calibrated for the raw water inlet coarse filtration demand of removing large particle impurities. It can effectively intercept macromolecular substances in raw water such as large colloidal flocs, fiber polymers, and large particle suspended solids with high molecular weight, while allowing all small and medium molecular weight substances and water molecules to pass through smoothly. The wide MWCO range ensures the unobstructed water flow of the coarse filtration link, and at the same time realizes the efficient interception of large molecular weight impurities that may cause damage to subsequent filtration components, achieving the dual effect of unobstructed water inlet and primary protection.
Membrane Thickness
The PP fiber filter layer of this coarse filtration cartridge adopts a multi-layer winding design with moderate thickness, with the total effective membrane thickness of the filter layer reaching 120-200 μm. The inner and outer sides of the filter layer are equipped with lightweight PP mesh protective layers with a thickness of 60-80 μm each, and the inner skeleton is a high-strength PP support structure with moderate rigidity. The moderate membrane thickness design not only ensures sufficient mechanical strength to resist the impact of raw water flow at the inlet link and the scouring of large particle impurities, but also maintains the unobstructed pore structure of the filter layer to ensure high flux and low pressure drop performance. The uniform membrane thickness distribution across the whole cartridge body avoids local wear or blockage caused by uneven stress of the filter layer under the scouring of raw water large particles.
Replacement Cycle
Under the normal operating conditions of raw water inlet (raw water large particle impurity content ≤50 mg/L, 24-hour continuous operation, regular simple backwashing), the recommended replacement cycle of this Coarse Filtration PP Wound Filter Cartridge is 3-6 months. If the raw water quality is poor (large particle impurity content >50 mg/L, high turbidity) or the system raw water inlet flow is ultra-high for a long time, the replacement cycle should be appropriately shortened to 1-3 months. In addition, when the pressure drop of the raw water inlet link reaches the maximum allowable value of 0.15 MPa, or the water flow rate decreases significantly and cannot be restored after backwashing, the filter cartridge should be replaced immediately to ensure the unobstructed raw water input and the normal operation of the entire water treatment system.
Features
- Specialized coarse filtration design: 5-200 μm precision range, targeted removal of large particle impurities in raw water inlet, the first protective barrier of water treatment system.
- Ultra-high flux performance: Unobstructed filter layer pore structure, high and stable flux, adapted to large-flow raw water inlet demand with low flux attenuation rate.
- Ultra-low pressure drop: Optimized structural design minimizes water flow resistance, almost no additional energy consumption, improving the overall energy efficiency of the system.
- High impurity-holding capacity for large particles: Reasonable PP fiber winding density, large filter layer void volume, can intercept a large amount of sediment, sand grains and other large particles.
- High-quality all-PP material: Non-toxic, odorless, acid and alkali resistant, compatible with various raw water media, no secondary pollution to water, safe and environmentally friendly.
- Strong anti-scouring performance: Moderate thickness filter layer and high-strength PP support skeleton, resistant to raw water flow impact and large particle scouring, no deformation or damage.
- Easy installation and replacement: Conforms to the universal installation standard of water treatment system filter housings, simple disassembly and replacement, no need for special tools, low maintenance cost.
- Cost-effective pre-filtration solution: Low manufacturing cost and long replacement cycle under normal conditions, effectively reducing the pre-filtration cost of raw water inlet and protecting subsequent high-value filtration components.
Application Fields
This Coarse Filtration PP Wound Filter Cartridge is a dedicated pre-filtration component for raw water inlet, and is widely used in the primary coarse filtration link of raw water inlet in various water treatment scenarios, acting as the first protective barrier of the system. In the municipal water supply field, it is applied to the raw water inlet coarse filtration of urban water purification plants, residential water supply systems and commercial water supply equipment, removing sediment, sand grains and rust in tap water raw water. In the industrial water treatment field, it is used for the raw water inlet pre-filtration of petrochemical, chemical, electronic, food and beverage, pharmaceutical and other industries, removing large particle impurities in industrial raw water to protect subsequent precision filtration equipment such as reverse osmosis membranes and pleated filter cartridges. In the domestic water purification field, it is applied to the raw water inlet coarse filtration of household central water purification systems, commercial water purifiers and community water supply stations, removing large particle impurities in tap water and well water. It is also widely used in the raw water inlet coarse filtration of agricultural irrigation systems, aquaculture water treatment systems, swimming pool water circulation systems, industrial cooling water systems and reclaimed water reuse systems, with broad application prospects in all water treatment scenarios that need to remove large particle impurities at the raw water inlet link.
Conclusion
To sum up, this Coarse Filtration PP Wound Filter Cartridge is a high-performance, professional pre-filtration component customized for the raw water inlet link of water treatment systems, dedicated to the efficient removal of large particle impurities in raw water. Its core advantages of ultra-high flux, ultra-low pressure drop, high large-particle impurity-holding capacity and cost-effectiveness perfectly solve the pain points of raw water inlet blockage, insufficient water flow and high subsequent filtration component loss in various water treatment scenarios. The all-PP material ensures the safety and environmental protection of the pre-filtration link with no secondary pollution, and the moderate structural design makes it resistant to raw water flow impact and large particle scouring, maintaining stable and reliable performance under complex raw water quality conditions. As the first protective barrier of the water treatment system, it effectively reduces the filtration pressure of subsequent fine filtration and precision filtration components, extends their service life, and reduces the overall operation and maintenance cost of the water treatment system. With the characteristics of easy installation, wide application range and high cost performance, it has become an indispensable core pre-filtration component for the raw water inlet link of various water treatment systems, providing a stable and efficient coarse filtration solution for the safe and smooth operation of the entire water treatment system.
Related products
- Medium Precision PP Wound Filter Cartridge: A matching filtration component for the secondary pre-filtration link after raw water inlet coarse filtration, with 1-5 μm precision, removing fine particle impurities in water.
- Pleated PP High-precision Filter Cartridge: A fine filtration component for the subsequent link of raw water coarse filtration, with higher filtration precision, suitable for precision water treatment scenarios.
- Plastic/Stainless Steel Standard Filter Housing: A dedicated filter housing for matching this coarse filtration PP wound filter cartridge, available in UPVC, 304/316 stainless steel, adapted to different raw water inlet pressure and medium requirements.
- Raw Water Inlet Multi-cartridge Parallel Filter Unit: A centralized pre-filtration equipment for large-flow raw water inlet, which can load multiple coarse filtration filter cartridges in parallel to further improve the overall coarse filtration capacity.
- Backwash Nozzle Accessory Kit: A supporting accessory for raw water inlet filter cartridges, which can realize simple backwashing of the cartridge to clean intercepted large particle impurities and appropriately extend the service life.
- Activated Carbon PP Composite Filter Cartridge: A composite filtration component for the subsequent link of raw water coarse filtration, which can remove fine particles and adsorb residual chlorine, organic matter and peculiar smell in water.
- Raw Water Turbidity Tester: A supporting detection equipment for the raw water inlet link, which can real-time monitor the turbidity of raw water and judge the replacement time of the coarse filtration filter cartridge according to the impurity content.
- PP Sediment Filter Bag: A large-flow coarse filtration component for industrial large-scale raw water inlet, which can be used in conjunction with this PP wound filter cartridge to realize multi-stage coarse filtration of raw water.
