In industries where purity, consistency, and efficiency are critical, pleated filter cartridges have become the preferred choice for liquid filtration. Whether you’re filtering water, chemicals, solvents, oils, or other process liquids, these filters offer excellent performance, longer service life, and lower operating costs compared to conventional depth filters.
At Unimarshal Technologies Pvt. Ltd., we specialize in manufacturing and exporting high-quality pleated filter cartridges from Gujarat, India, tailored to meet a wide range of industrial filtration requirements across the globe.
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What Are Pleated Filter Cartridges?
They are cylindrical filters made from high surface area media folded into pleats. This pleating design increases the filter’s surface area, allowing for:
- Higher dirt-holding capacity
- Lower pressure drop
- Extended filter life
These filters are commonly made from polypropylene (PP), due to its chemical resistance, thermal stability, and compatibility with a wide range of liquids.
How Do Pleated Filter Cartridges Work?
They operate on the surface filtration principle, where particles are trapped on the outer surface of the filter media. The pleated structure maximizes the effective filtration area, enabling:
- High flow rates with minimal resistance
- Efficient retention of fine particles
- Consistent filtration performance over time
Filtration occurs from outside to inside, where the liquid enters through the outer pleated layer and exits through the core, free of contaminants.
Types of PP Pleated Filter Cartridges
At Unimarshal, we offer several types of Polypropylene Pleated Filter Cartridges, each designed for specific applications and filtration needs:
1. PP Pleated Depth Filter Cartridges
- Constructed with layers of PP media for depth and surface filtration
- High dirt-holding capacity
- Ideal for water, beverages, and general process fluids
2. PP Membrane Pleated Filter Cartridges
- Use melt-blown or membrane-grade polypropylene media
- Available in micron ratings from 0.2 to 10 µm
- Suitable for bacteria, particle, and fine sediment removal
3. High Flow Pleated Filters
- Larger diameter with high surface area
- Designed for high volume filtration in less space
- Perfect for industrial water treatment and chemical processing
4. DOE & SOE End Configuration Filters
- Available in Double Open End (DOE) and Single Open End (SOE) formats
- Compatible with most standard housings
- Includes 222/226 O-rings, flat cap, or fin-style options

Applications of Pleated Filter Cartridges in Liquid Filtration
This are used across numerous industries, including:
- Pharmaceuticals: Sterile and particle-free filtration of liquids
- Food & Beverage: Clarity and hygiene in ingredients and final products
- Water Treatment: Pre-filtration, polishing, and final stage filtration
- Chemical & Petrochemical: Filtration of solvents, acids, and process fluids
- Electronics: Ultrapure water filtration for semiconductor applications
- Paints & Inks: Removal of particles and gels for consistent finish
Why Choose Pleated Filters Over Depth Filters?
While depth filters like wound or melt-blown cartridges trap contaminants throughout the media, this offer:
- Greater filter surface area
- Higher flow capacity
- Longer service life
- Easier replacement and cleaning
This translates to better performance and cost-efficiency in the long run.

Unimarshal – Trusted Manufacturer, Supplier & Exporter from India
As a leading manufacturer and exporter of pleated filter cartridges, Unimarshal Technologies ensures every filter is crafted to meet global quality standards. Our filters are supplied across India, UAE, USA, UK, Germany, Singapore, South Africa, Australia, and beyond.
We offer:
- Wide range of micron ratings (0.2 to 100 µm)
- Variety of media types and end cap configurations
- Custom solutions for your exact process needs
Conclusion
Pleated polypropylene filter cartridges are a critical component in any liquid filtration system where performance and efficiency are paramount. Their engineered design, versatility, and cost-saving benefits make them the smart choice for industries worldwide.
Reach out to Unimarshal Technologies Pvt. Ltd. today to discuss your filtration challenges. Let us help you select the right PP pleated filter cartridge for your application.
