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Standard Felt Liquid Filter Bags

  • Micron ratings from 1 to 200
  • All industry standard & custom sizes available
  • Broad chemical compatibility
  • High flow/low pressure drop
  • Sewn or fully-welded construction
  • Handles on all bags
  • Choice of steel ring or plastic flange
  • Temperature ratings to 200°F (PO), 275°F (PE ),
  • 425°F (HD and 500°F (Teflon®)

Felt Bag Materials

Constructed using 100% synthetic fibers in polypropylene, polyester, Nomex® and Teflon®. The proper combination of fiber diameters, weights and thicknesses result in an economical depth filter media. To reduce fiber migration, Polypropylene bags are treated with a glazed finish, while Polyester and Nomex® bags are singed

  • Polypropylene and Polyester materials meet FDA regulations forfood contact under CFR21, Section 177.1520
  • Silicone-free construction
  • High dirt holding capacity
  • Ability to remove both solid and gelatinous particles
  • Lowcost
  • Glazed/singed finish on Polypropylene & Polyester reduces fiber-shedding

Felt Bag Styles

Steel-ring bags have a galvanized steel ring (stainless steel optional) sewn into the top of the bag. They are supplied with sewn seams standard. Plastic flange bags have a specially-designed flange sewn to the top of the bag. They are supplied with sewn seams standard (fully-welded seams available upon request).

Welded Construction

Fully-welded bags are available in polypropylene and polyester felt for #1, #2, #3, #4 and #5 plastic flanges.

  • No needle holes, thus increasing efficiencies by preventing by-pass
  • Elimination of threads further reduces possibility of fiber-shedding
Felt MaterialsMicron Ratings

Ordering Information

Media TypeMedia FinishMicron RatingBag DimensionsRing / Flange StylesOptions


PE = PolyesterP = Plain (PE, PO)See ChartP1 =7.06”16.5”S = Galvanized steelH = Handle (Standard on all ring style bags)
PO = PolypropyleneG = Glazed (PO)See ChartP2 =7.06”32.0”SS = Stainless steelEB = Edge binding
HT = Nomex®S = Singed (PE, HT)See ChartP3 =4.12”8.0”PP = Polypropylene ringA = Auto seams
See ChartP4 =4.12”14.0”T = TitaniumTTA = Turn, top stich, auto seam
P5 =4.12”24.0”P = AJR-P FlangeRC = Reverse collar
P7 =5.50”15.0”F = AJR-F FlangeSB = Spun bond cover
P8 =5.50”21.0”OSS = AJR OSS FlangeMC = Mesh cover
P9 =5.50”31.0”DS = Draw stringWE = Fully Welded Construction
P11 =8.50“16.0”NR = No ring
P12 =8.50“32.0”E = Santoprene (Note: Sewn filters only)
C1 =7.31”16.5”
C2 =7.31”32.5”
RP-1 =8.0”30.0”
RP-2 =8.0”40.0”
PC-1 =9.0”20.0”
PC-2 =9.0”30.0”
X1 =4.35”8.0”
X2 =4.35”14.0”
XO1 =6.0“22.0”


FileDescriptionFile sizeDownloads
pdf Hall Pyke Standard felt bag filter2 MB117