Pleated PP Filter Cartridge 1 Micron 40 Inch: High Surface Area Pleated Polypropylene Filter For Ultra-Fine Liquid Filtration
Introduction:If you are sourcing Pleated PP Filter Cartridge 1 Micron 40 Inch for high-efficiency ultra-fine liquid filtration and ultra-pure water pretreatment, this pleated polypropylene filter cartridge provides reliable 1 micron particle retention. With folded filter media to expand effective filtration area, it offers higher flow rate and larger dirt holding capacity compared with string wound filters of the same size. It efficiently traps micro suspended solids, tiny colloids and fine silt, serving as a critical guard filter to protect RO and UF membrane systems against micro-particle contamination. It is widely used in semiconductor ultra-pure water, pharmaceutical process water, high-end beverage production and fine chemical liquid purification projects with strict cleanliness requirements.
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Product Overview
Pleated PP Filter Cartridge 1 Micron 40 Inch is a high-performance precision filter cartridge adopting pleated polypropylene filter medium. The flat PP membrane is folded into dense pleats and thermally sealed, without any adhesive to avoid secondary contamination. The filter media is fixed to rigid PP end caps and a solid inner core. The unique pleated design greatly enlarges the effective filtration area within the same 40-inch length, 60mm outer diameter and 30mm inner diameter. It can be installed into standard 40-inch filter housings for direct replacement. Compared with 1μm string wound filters, this pleated version delivers higher flow, lower pressure drop and better release of trapped particles. Virgin polypropylene material provides stable acid and alkali resistance for most neutral and weakly corrosive industrial fluids.
Working Principle
Pleated PP Filter Cartridge 1 Micron 40 Inch operates with outside-in filtration. When process liquid flows into the filter housing and reaches the pleated PP media, large contaminants are blocked on the outer layer. Micro particles larger than 1μm are captured by the dense pleated polypropylene medium. The pleated structure spreads the liquid across a much wider surface, preventing rapid surface clogging. The thermally bonded seams ensure no bypass of unfiltered liquid. The robust inner core withstands differential pressure and maintains the shape of pleats under continuous operation, so the filtration efficiency stays consistent during long running cycles.
Core Technical Specifications
| Item | Parameter |
|---|---|
| Model | Pleated PP 1μm 40" |
| Material | Virgin Polypropylene Media, PP End Caps & PP Core |
| Filtration Rating | 1 Micron Absolute 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, no adhesive |
| Feature | Large filtration area, high flow, low pressure drop, no secondary pollution |
Core Advantages
Large pleated filtration area:
More contact area with liquid, higher flow capacity and greater dirt holding capacity than wound filters of identical dimensions.
Thermal sealing without glue:
No adhesive inside the cartridge, avoiding organic leaching and secondary contamination for pure water applications.
Stable 1μm absolute filtration:
Reliably intercepts micro particles and colloids to safeguard downstream membrane systems.
Wide chemical compatibility:
Virgin PP material works well with weak acid, weak alkali and most neutral aqueous liquids.
Standard universal size:
Matches all common 40-inch filter housings for simple installation and replacement.
Main Application Scenarios
Semiconductor and electronics ultra-pure water pretreatment
Pharmaceutical factory process water and additive liquid filtration
Bottled water, beverage and juice precision filtration
Fine chemical and high-spec electroplating liquid purification
RO / UF membrane system high-grade pre-filtration
Laboratory high purity water production
Compatibility & Cross Reference
| Model | Specification | Application Scenario |
|---|---|---|
| Pleated PP 1μm 40" | 40 inch,1μm pleated PP filter | Ultra-fine high purity liquid filtration |
| Pleated PP 5μm 40" | 40 inch,5μm pleated grade | General precision pre-filtration |
| Pleated PP 10μm 40" | 40 inch,10μm pleated grade | Conventional industrial water treatment |
| Pleated PP 1μm 20" | 20 inch short pleated filter | Small ultra-pure water units |
FAQ
Q1: What is the difference between pleated PP filter and string wound filter at 1 micron?
A1: Pleated PP has much larger filtration area, higher flow rate and lower pressure drop. It is glue-free and cleaner for ultra-pure water. Wound type can be washed and reused, while pleated PP is disposable.
Q2: Can this pleated filter be cleaned and reused?
A2: Normally it is disposable. Heavy colloidal or particle pollution will permanently block the fine pleated pores, and cleaning cannot fully restore its performance.
Q3: What is the maximum operating temperature?
A3: Continuous working temperature should not exceed 80℃. Higher temperature will deform polypropylene pleats and damage thermal sealed joints.
Q4: Can custom end cap styles be supplied?
A4: Yes, DOE, SOE and other end cap types are available, and multiple micron ratings and lengths can be customized for bulk orders.
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