When industrial applications demand absolute filtration efficiency without the high cost and complexity of filter cartridges, Eaton PROGAF™ Filter Bags stand out as the premier solution. As a revolutionary step in bag filtration, the PROGAF series utilizes a progressive density structure to deliver performance rivaling expensive cartridge systems.
At Purecowater, we specialize in providing top-tier distribution and OEM solutions for industrial filtration. We are proud to offer Eaton’s advanced filtration products to help you tackle your most complex solid and liquid separation challenges.

What Sets PROGAF™ Filter Bags Apart?
The PROGAF filter bag is designed for high-performance applications where standard felt bags may fall short. The secret lies in its multi-stage filtration media. Unlike standard bags that rely on a single layer of filtration, PROGAF bags are constructed from up to 12 layers of melt-blown polypropylene media.
This structure gets progressively finer from the inner to the outer layers (progressive density). Large particles are trapped in the pre-filter layers, while finer particles are captured in the deeper, denser layers. This design ensures:
- Absolute Filtration: Efficiency ratings greater than 99.9%.
- Extended Service Life: The depth loading capacity allows the bag to hold more dirt before requiring replacement.
- Cost Efficiency: Offers the performance of a filter cartridge with the low disposal cost and ease of use of a filter bag.
Key Features
- 100% Polypropylene Construction: Made from hydrophobic polypropylene fibers, ensuring broad chemical compatibility.
- Silicone-Free: Ideal for paint, ink, and coating applications where silicone contamination causes cratering/fisheyes.
- Fully Welded Seams: Eliminates bypass that can occur with sewn holes, ensuring all fluid passes through the media.
- SENTINEL® Seal Ring: A patented, pressure-activated sealing ring that creates a chemically resistant, bypass-free seal adaptable to most filter housings.
Technical Specifications
Understanding the operational limits and construction of the PROGAF bag is essential for selecting the right solution for your process. The table below outlines the general specifications for the PROGAF series.
| Specification | Details |
|---|---|
| Filter Material | Melt-blown Polypropylene |
| Cover Layer | Polypropylene Mesh |
| Filtration Structure | Up to 12 progressive layers |
| Retention Ratings | 1, 2, 12 µm @ > 99.9% Efficiency |
| Max. Operating Temp | 194°F (90°C) |
| Max. Differential Pressure | 36 psi (2.5 bar) |
| Max. Flow Rate (Size 02) | 44 GPM (10 m³/h) |
Industrial Applications
Due to their high purity construction and absolute retention ratings, PROGAF bags are utilized in industries where product quality is critical. Common applications include:
- Food & Beverage: Filtration of beer, wine, spirits, edible oils, and soft drinks. FDA/EC compliant materials are available.
- Pharmaceuticals: Active carbon purification, catalyst recovery, and filtration of gelatins or vitamin extracts.
- Chemicals: Processing acids, alkalis, solvents, and removing gels from resins.
- Microelectronics: Water purification and fine particle removal.
- Surface Finishing: Filtration of e-coats, clear coats, and paints where silicone-free media is mandatory.
Performance Comparison: PROGAF vs. Standard Bags
Why upgrade to a PROGAF bag? The performance gap is significant when dealing with critical fluids. While standard needlefelt bags provide nominal filtration (capturing a percentage of particles at a rated size), PROGAF bags provide absolute filtration.
| Feature | Standard Needlefelt | Eaton PROGAF™ |
|---|---|---|
| Efficiency | Nominal (60-80%) | Absolute (>99.9%) |
| Service Life | Standard | Extended (High Capacity) |
| Layer Structure | Single Density | Progressive Density (Up to 12 Layers) |
| Seam Construction | Sewn or Welded | Fully Welded (Bypass Free) |
How Purecowater Can Help
Choosing the correctly rated filter bag is crucial for optimizing your process flow and product quality. As a distributor for Eaton Filtration, Purecowater ensures you get genuine, high-performance media tailored to your specific housing and retention requirements.
Whether you need to upgrade from a nominal bag system or replace costly cartridges with a more economical bag solution, the PROGAF series is an excellent choice. Our team can assist with sizing, compatibility checks, and supply chain management for your project.
Ready to improve your filtration efficiency?