ARFB Series Absolute Rated Filter Bag – High-Performance Multi-Layer Filter Bag (5 or 10 Layers)

As industrial liquid filtration processes demand higher accuracy, stability, and operational safety, conventional filter bags are no longer sufficient for critical applications. The ARFB Series Absolute Rated Filter Bag is engineered to deliver consistent filtration performance while optimizing cost and service life.

Featuring an advanced multi-layer depth filtration structure (5-layer or 10-layer configurations available), the ARFB series utilizes high-purity melt-blown polypropylene media with a precisely controlled density gradient. This enables reliable absolute filtration efficiency, ensuring consistent particle retention across demanding processes.

The standard sewn construction provides flexibility and cost-effectiveness, while an optional fully thermally welded design is available for enhanced sealing performance. With its high dirt-holding capacity and stable filtration behavior, the ARFB series offers an excellent alternative to traditional filter cartridges.

Key Features

1. Absolute Filtration Efficiency

Uniform pore structure ensures reliable particle retention, delivering true absolute-rated filtration performance for critical applications.

2. Multi-Layer Gradient Structure (5 or 10 Layers Available)

The filter bag features a configurable multi-layer design, available in 5-layer or 10-layer constructions. Each layer contributes to a gradient filtration system, significantly improving contaminant capture and filtration stability.

3. High Dirt-Holding Capacity

Depth filtration media with density gradient allows progressive particle retention, increasing contaminant loading capacity and extending service life.

4. Durable Construction Options

● Standard sewn construction for cost-effective and flexible use

● Optional fully welded design for superior sealing and reduced bypass risk

5. Dual Outer Protective Layers

Outer layers prevent direct contact between filter media and support baskets, minimizing fiber shedding caused by abrasion.

6. High-Purity Media

Manufactured from 100% melt-blown polypropylene with no resins, binders, or additives, ensuring clean and stable filtration.

7. Low Initial Pressure Drop

Optimized structure reduces flow resistance, improving system efficiency and lowering energy consumption.

8. Cost-Effective Alternative to Cartridges

In high-efficiency filtration applications, the ARFB series can replace expensive filter cartridges, reducing operational costs, change-out time, and storage space.

9. FDA-Compliant Materials

All materials comply with FDA food-contact regulations, making them suitable for food, beverage, and pharmaceutical applications.

Technical Specifications 

Applications

1. Water Treatment & Membrane Pre-Filtration

Ideal for use before RO, UF, or NF systems. The multi-layer filter bag (up to 10 layers) effectively removes suspended solids, protecting downstream membranes and extending their service life.

2. Oil & Industrial Fluid Filtration

Suitable for removing particulates from lubricating oils, fuels, and other industrial fluids.

3. Seawater Desalination

Used in pre-treatment stages to reduce suspended solids and improve overall system efficiency.

4. Food & Beverage Processing

Applicable for filtration of water, syrups, beverages, and other food-grade liquids with FDA-compliant materials.

5. Pharmaceutical & Biotech Applications

Ensures high-purity filtration for sensitive processes requiring strict cleanliness standards.

6. Fine Chemicals & Electronics Manufacturing

Designed for high-precision filtration in chemical processing and electronic-grade fluids.

7. Amine & Specialty Chemical Filtration

Effective in removing contaminants in amine systems and specialty chemical processes.

8. Microorganism Pre-Filtration (e.g., Giardia)

Capable of pre-filtering microorganisms in the 8–12 micron range, reducing load on downstream fine filtration systems.

Why Choose ARFB Absolute Rated Filter Bags?

Compared to conventional filter bags and cartridges, the ARFB series offers:

● Reliable absolute filtration efficiency 

● Flexible 5-layer or 10-layer configurations 

● Higher dirt-holding capacity and longer service life

● Lower operational cost as a cartridge alternative

● Flexible construction: sewn standard + welded optional 

● Broad compatibility across industrial and food-grade applications

For high-flow, high-precision, and cost-sensitive filtration systems, the ARFB series provides a balanced solution between performance and economy.