PPMB-40-05 PP Melt Blown Filter Cartridge: RO Pre-Filtration Depth Filter
Introduction:If you are sourcing PPMB-40-05 PP melt blown filter cartridge for reliable industrial RO pre-filtration and sediment removal, this graded-depth polypropylene filter delivers consistent 5 micron particle retention. Its gradient fiber structure traps coarse contaminants on outer layers and fine silt deep inside the fiber matrix, delivering exceptional dirt holding capacity and low pressure drop during continuous operation. It efficiently captures sand, rust flakes, suspended solids and fine particulate impurities in raw water, serving as a sacrificial protective barrier to extend RO membrane service life and reduce system maintenance expense. This cost-effective disposable depth filter is widely deployed in power stations, food beverage factories, chemical plants and municipal raw water pretreatment projects across the Middle East and global industrial markets.
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Product Overview
PPMB-40-05 PP melt blown filter cartridge is our flagship 40-inch 5 micron depth filter built for industrial liquid pretreatment. It is manufactured from virgin food-grade polypropylene resin through continuous melt-blown spinning technology. The filter forms a naturally graded density structure, loose on the outer wall and progressively denser toward the inner core, enabling true multi-layer depth filtration rather than simple surface blocking. Standard dimensions are 40 inch length, 60mm outer diameter and 30mm inner diameter. No chemical adhesive is added during production; fibers bond together by thermal fusion only. This eliminates fiber shedding and secondary liquid contamination. It fits all standard 40-inch filter housings, easy for fast field replacement. As the first-stage pre-filter, it lowers impurity load and protects expensive downstream membranes, ion exchange resin and precision process equipment.
Working Principle
PPMB-40-05 PP melt blown filter cartridge works on gradient depth filtration principle. Liquid flows from outside to inside through the cylindrical fiber matrix. Large impurities including sand grains and rust scale are captured by the loose outer fiber layers. Medium-sized suspended particles are trapped in the middle fiber zone. Fine silt and tiny particles down to 5 micron are intercepted by the compact inner fiber layers. This multi-stage capture design prevents fast surface clogging, greatly improves dirt holding capacity and keeps pressure drop stable for a longer operating cycle. Pure polypropylene material maintains excellent chemical inertness against most aqueous liquids and weak acid & alkaline water, ensuring stable and safe filtration performance throughout service life.
Core Technical Specifications
| Item | Parameter |
|---|---|
| Model | PPMB-40-05 |
| Material | Virgin Polypropylene (PP) |
| Filtration Rating | 5 μm |
| Length | 40 inch (1016 mm) |
| Outer Diameter | 60 mm |
| Inner Diameter | 30 mm |
| Flow Direction | Outside to Inside |
| Max Continuous Temperature | ≤60℃ |
| Max Allowable Differential Pressure | 2.0 bar |
| Construction | Gradient Density, Thermal Bonded, Glue-Free |
Core Advantages
Graded depth filtration design:
Outer-loose inner-dense fiber structure maximizes contaminant storage and avoids rapid surface blockage.
Stable 5 micron precision:
Reliably intercepts fine particles to shield RO membranes from fouling and abrasion.
Glue-free thermal fusion molding:
No fiber shedding, no secondary contamination for drinking water and food-grade liquid applications.
Wide chemical compatibility:
Resists weak acid, weak alkali and saltwater, suitable for general industrial water and brackish water pretreatment.
Economical and universal size:
Fits standard 40-inch filter housings, simple installation and low replacement cost for mass industrial projects.
Main Application Scenarios
Reverse osmosis system raw water pre-filtration and membrane protection
Power plant boiler feed water and circulating water purification
Food, beverage and drinking water production filtration
Electroplating, paint and general chemical liquid clarification
Municipal water plant raw water pretreatment and wastewater reuse
Pre-protection for ultrafiltration and ion exchange resin systems
Compatibility & Cross Reference
| Model | Specification | Compatibility |
|---|---|---|
| PPMB-40-05 | 40 inch,5μm PP melt blown | Standard 40 inch filter housing |
| PPMB-40-01 | 40 inch,1μm fine grade melt blown | Same housing dimension |
| PPMB-40-10 | 40 inch,10μm coarse grade melt blown | Same filter vessel |
| PPMB-20-05 | 20 inch short version 5μm melt blown | Smaller compact filter housings |
FAQ
Q1: What liquids can PPMB-40-05 PP melt blown filter cartridge handle?
A1: It works for water and weakly corrosive aqueous liquids. It cannot be used for strong organic solvents or liquid temperature over 60℃.
Q2: What flow direction does PPMB-40-05 adopt?
A2: Outside-to-inside flow, which is the industry standard design for melt blown depth filter cartridges.
Q3: Can I clean and reuse PPMB-40-05 filter cartridge?
A3: It is a disposable depth filter. When differential pressure reaches 2.0 bar, replace the cartridge directly. Cleaning will not restore original filtration performance.
Q4: Are other micron ratings and lengths available?
A4: Yes, we supply 1μm,5μm,10μm,20μm,50μm,100μm, with 10/20/30/40 inch lengths. Custom specifications are available for bulk project orders.
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