Overview of PBA Series Standard Filter Bags

The PBA series filter bags are designed for industrial filtration processes requiring the removal of solids from fluids with high contamination levels or high viscosities (over 10,000 cPs). Manufactured under strict quality controls compliant with ISO 9002, these filter bags ensure reliable and consistent performance.

Materials and Construction

• Available materials include polypropylene, polyester, nylon (all treated to minimize fiber release), "extended life" felt polypropylene and polyester for enhanced contaminant capacity, regenerable monofilament fabrics (nylon, polypropylene), polypropylene "Melt-Blown" depth filters (90% retention efficiency), polyester multifilament, and Nomex® for high-temperature applications.
• Construction types include thermowelded bags with polypropylene or other polymeric seal rings, and sewn bags with polypropylene or metal seal rings.
• Four standardized sizes are offered to fit most common filter housings.
• All materials are silicone-free and compliant with EU food contact regulations 2002/72/EC and 1935/2004/EC, making them suitable for food and beverage industry applications.

Applications

These filter bags are suitable for a wide range of industrial uses including:

• Filtration of paints, adhesives, inks, coatings, varnishes, and resins
• Solvent filtration
• Cooling fluids and oils filtration
• Chemical industry fluids
• Colloidal substance removal
• Industrial water filtration
• Various food and beverage industry processes

Chemical Compatibility and Operating Temperatures

The document provides a compatibility matrix indicating the resistance of different filter media to acids, bases, solvents, and oxidizing agents, along with their maximum operating temperatures:

• Polypropylene: up to 90°C, good resistance to acids and bases, limited to fair with oxidizing agents
• Polyester: up to 110°C, excellent resistance to acids and bases, fair to good with solvents and oxidizers
• Nylon: up to 100°C, excellent resistance to solvents, limited with acids and oxidizers
• Nomex®: up to 250°C, excellent high-temperature resistance
• PTFE: excellent chemical resistance and temperature tolerance

Filtration Performance and Specifications

• Nominal filtration ratings range from 1 to 1000 microns, with various mesh sizes and filter media types available.
• Filter media efficiency varies by type: felt media provide 65-75% efficiency, monofilament and multifilament fabrics offer 99.9%, and melt-blown microfiber bags achieve 99.5% efficiency.
• Initial pressure drop is low at 0.07 bar for polypropylene felt bags.
• Flow rate charts illustrate the relationship between fluid viscosity (up to 10,000 mPa·s) and achievable flow rates for different bag sizes.

Product Identification and Ordering

Filter bags are identified by a coding system that specifies:

• Bag size (e.g., 20)
• Filter media type (e.g., polypropylene felt, polyester felt, nylon mesh)
• Filtration rating (micron size)
• Seal ring material (polypropylene, metal, Santoprene, etc.)
• Handle type (sewn or thermowelded)
• Bag construction version

Example code: PBA 20 PE 10 SR S W

Additional Notes

• Nomex® is a registered trademark of DuPont.
• Catalogue specifications are subject to change without notice.

Manufacturer and Contact Information

Produced by FILTREC S.p.A., Italy, with international offices in Spain, Australia, and the Middle East. Contact details and websites are provided for global support.