
CLEARGAF™ filter bags are specifically designed for applications where high purity and regulatory compliance are mandatory. They are manufactured under controlled conditions to ensure they are migration-free and meet the strict requirements of FDA CFR 21 Part 177 and EC Regulation 1935/2004 for food and beverage contact.
CLEARGAF filter bags are made from polypropylene and polyester needle felt materials in both standard and increased depth filtration versions for holding larger amounts of particulate. They have a crush style seal to prevent particle bypass and fully welded construction for maximum durability. CLEARGAF filter bags provide nominal efficiency retentions of 1, 5, 10 and 25 microns in both #1 and #2 filter bag sizes.
The extended life needle felt material (same material used for DURAGAF filter bags) allows for increased depth filtration and thus retention of more solids to minimize the frequency of filter bag change-outs.
Key Benefits for High-Purity Applications
- Regulatory Assurance: Materials are independently tested and certified for food and pharmaceutical use.
- Migration-Free: Special treatment prevents fiber release into the filtrate.
- SENTINEL® Seal: All models utilize the SENTINEL pressure-activated sealing ring to prevent bypass.
- Single Packaging: Each bag is individually wrapped to maintain cleanliness until use.
Application examples for CLEARGAF filter bags:
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Edible oil
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Gelatin
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Mineral water
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Juices
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Sugar
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Dairy
CLEARGAF Materials:
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Needle felt polypropylene or polyester
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Extended-life needle felt polypropylene or polyester
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Nylon monofilament
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Melt-blown polypropylene
CLEARGAF Specifications:
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#1 (7" diameter x 17" long) and #2 (7" diameter x 32" long) sizes are available
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#1 size CLEARGAF bags have 2.6ft2 of filter area
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#2 size CLEARGAF bags have 5.2ft2 of filter area
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Maximum temperature ratings
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194ºF for polypropylene material
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302ºF for polyester material
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Maximum differential pressure of 36.2 PSI
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Recommended replacement differential pressure between 11.6 - 21.7 PSI
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Maximum flow rates: (depending upon material)
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#1 size CLEARGAF bags, 88 GPM
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#2 size CLEARGAF bags, 176 GPM
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Nominal retentions: 1, 5, 10, 25 μm




