Felt Filter Bags

Summary

Product Identification

Global Filter Standard Felt Liquid Filter Bags are designed for efficient liquid filtration. They are constructed with 100% synthetic fibers in polypropylene, polyester, and Nomex® materials, forming economical depth filter medias.

Features and Benefits

• Micron ratings from 1 to 200
• All industry-standard and custom sizes available
• Broad chemical compatibility
• High flow/low pressure drop media
• Sewn or fully-welded construction options
• Handles standard on all bags
• Choice of steel or molded plastic snap seal rings
• Polypropylene and polyester bags are supplied with a singed or glazed finish to reduce fiber migration.
• Polypropylene, Polyester, and Nomex materials meet FDA regulations for food contact under CFR21, Section 177.1520.
• Glazed/singed finish on polyester and polypropylene reduces fiber-shedding.
• Ability to remove both solid and gelatinous particles.
• Silicone-free construction.
• High dirt holding capacity.
• Low cost.

Operating Limits

• Temperature ratings to 275°F (for PE media with S, SS, or V-seal ring).
• Temperature ratings to 425°F (for HT media with S or SS ring).

Materials and Construction

Felt Bag Materials:

• Polypropylene
• Polyester
• Nomex®

Felt Bag Styles:

• S-ring bags: Feature a galvanized steel ring (stainless steel optional) sewn into the top, with sewn seams as standard.
• V-ring bags: Feature a specially-designed, high-temperature snap seal ring sewn into the top, with sewn seams as standard (fully-welded seams available upon request).

Welded Construction:

• Available in glazed polypropylene and singed polyester felt.
• Sizes: #1 & #2 with V-seal molded plastic rings.
• Benefits include no needle holes, increasing efficiencies by preventing bypass, and elimination of threads to further reduce fiber-shedding.

Filtration Ratings

Micron ratings available for various felt materials:

• Polyester: 1, 3, 5, 10, 15, 25, 50, 75, 100, 150, 200 µ
• Polypropylene: 1, 3, 5, 10, 15, 25, 50, 75, 100 µ
• Nomex®: 1, 3, 5, 10, 15, 25, 50, 75, 100 µ

Bag Dimensions

Ordering Information Parameters

• Media:
  • PE = Polyester
  • PO = Polypropylene
  • PEM = Polyester Multifilament Mesh
  • HT = Nomex®
• Rating (µ): 1-200
• Cover/Jacket:
  • P = Plain (No Cover)
  • C = Commercial-Style Band (for C1 & C2 sizes only)
  • PL = No Outer Finish
• Ring Style:
  • NR = No Ring
  • S = Galvanized Steel
  • SS = Stainless Steel
  • V = High-temp Plastic Snap Seal
• Options:
  • A = Automotive Seam
  • RC = Reverse Collar (for S & SS ring styles only)
  • WE = Fully-Welded (for PE and PO media only)

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Disclaimer: This summary is based on extracted text and may not include all figures, footnotes, or the latest revisions. Contractual data must match the OEM PDF revision used on the project.

Official datasheet (PDF)

Lenntech datasheet mirror