Pleated PP Filter Cartridge 20 Micron 40 Inch: High Flow Pleated Polypropylene Filter For High Turbidity Raw Water Treatment
Introduction:If you are sourcing Pleated PP Filter Cartridge 20 Micron 40 Inch for high turbidity raw water filtration, primary industrial liquid purification and pre-treatment of RO systems, this pleated polypropylene filter cartridge provides stable 20 micron particle interception. The pleated media design greatly expands effective filtration area and brings superior flow capacity and dirt holding capacity when compared with same-size wound filter cartridges. It effectively intercepts coarse sediment, rust debris, large suspended solids and floc particles, acting as an economical primary barrier to reduce the load of downstream fine filters and protect reverse osmosis and ultrafiltration membrane systems. Adopting glue-free thermal bonding technology to avoid secondary contamination, it is widely used in river water, well water, mining water, municipal water pretreatment and general industrial liquid filtration projects for global industrial buyers.
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Product Overview
Pleated PP Filter Cartridge 20 Micron 40 Inch is a cost-effective disposable pleated filter designed for primary filtration of high turbidity fluids. It is manufactured by folding virgin polypropylene filter media and applying thermal bonding technology without adhesive, eliminating the risk of organic substance leaching into process liquid. The pleated media is fixed with PP end caps and a rigid polypropylene inner support core. The standard dimension is 40 inch length, 60mm outer diameter and 30mm inner diameter, fully compatible with all standard 40-inch filter housings for quick field replacement. Compared with 1μm,5μm and 10μm pleated PP filters, this 20μm grade has the largest pore size, highest flow rate and lowest pressure drop, focusing on removing large coarse impurities from raw water. Virgin polypropylene material features reliable weak acid and weak alkali resistance, suitable for most neutral and mildly corrosive industrial liquid working environments.
Working Principle
Pleated PP Filter Cartridge 20 Micron 40 Inch operates on outside-in filtration principle. When liquid flows into the filter housing and passes through pleated PP media, large impurities are trapped on the outer pleated layers. All solid particles larger than 20 micron are intercepted by the polypropylene filter medium. The folded structure spreads liquid over a broad surface area, slowing clogging and extending the service cycle. Thermal sealed joints prevent liquid bypass and ensure all fluid must pass through filter media. The sturdy inner core bears differential pressure and keeps pleats intact during continuous operation, maintaining stable filtration efficiency for long-time running.
Core Technical Specifications
| Item | Parameter |
|---|---|
| Model | Pleated PP 20μm 40" |
| Material | Virgin PP Filter Media, PP End Caps & PP Core |
| Filtration Rating | 20 Micron Grade |
| Length | 40 inch (1016 mm) |
| Outer Diameter | 60 mm |
| Inner Diameter | 30 mm |
| Flow Direction | Outside to Inside |
| Max Continuous Temperature | ≤80℃ |
| Max Differential Pressure | 3.0 bar |
| Structure | Thermal-bonded pleated media, adhesive-free |
| Feature | Large filtration area, ultra-high flow rate, low pressure drop, no secondary pollution |
Core Advantages
Large pleated filtration area:
Delivers ultra-high flow and strong dirt holding capacity, much better than string wound filters of identical size.
Glue-free thermal sealing design:
No organic adhesive, preventing leaching and secondary contamination of process water.
Stable 20 micron filtration accuracy:
Efficiently removes coarse silt, rust and large suspended solids to reduce loading for subsequent fine filters.
Good chemical tolerance:
Virgin PP material can withstand weak acid, weak alkali and most neutral aqueous liquids.
Standard universal size:
Matches mainstream 40-inch filter housings, simple installation and convenient on-site maintenance.
Main Application Scenarios
River water, well water and underground raw water primary pretreatment
Mining water and construction wastewater coarse impurity removal
Municipal water supply pre-filtration for water plants
Power plant circulating water and cooling water purification
Reverse osmosis system front-stage coarse filtration protection
General industrial wastewater primary clarification
Compatibility & Cross Reference
| Model | Specification | Application Scenario |
|---|---|---|
| Pleated PP 20μm 40" | 40 inch,20μm pleated PP filter | High turbidity raw water primary filtration |
| Pleated PP 10μm 40" | 40 inch,10μm standard pleated grade | Conventional raw water pretreatment |
| Pleated PP 50μm 40" | 40 inch,50μm coarse pleated grade | Heavy particle liquid pre-filtration |
| Pleated PP 20μm 20" | 20 inch short pleated filter | Small water treatment equipment |
FAQ
Q1: What is the difference between 20μm pleated PP filter and 10μm pleated PP filter?
A1: The 20μm version has bigger pores, higher flow and lower pressure drop, used for high turbidity raw water to remove large particles. The 10μm model targets finer particles for medium precision pretreatment.
Q2: Can this 20μm pleated filter be cleaned and reused?
A2: It is disposable. Once the pleat gaps are blocked by colloids or fine sediment, washing cannot fully recover the original filtration performance.
Q3: What is the maximum continuous working temperature?
A3: Continuous working temperature should not exceed 80℃. High temperature will deform the pleated media and damage thermal sealing joints.
Q4: Can customized end cap styles be provided?
A4: Yes, DOE, SOE and other end cap types are available. Multiple micron ratings and lengths can be customized for bulk project orders.
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