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Extended Life Felt Filter Bags

HL Extended Life filter bag provides superior filtration performance for removing gels, irregular shaped particles in liquid streams with a wide particle size distribution, as well as up to twice the dirt holding capacity of a standard filter bag. The bag is made of extended-file polyester and polypropylene materials utilizing a proprietary fiber blend configuration to create a media that is heavier, thicker and stronger than standard felt media, resulting in an average operational life of 2 to 4 times longer than conventional bags. The result is a dramatically higher dirt holding capacity at the same efficiency and differential pressure.
The Extended Life filter bags are specially designed with a coarse inner layer and a middle layer of felt constructed with finer fibers. The outside layer is glazed, by melting fibers together, to form a tight, secure downstream matrix, which prevents fiber migration.
  • Product Details


Material: extended life Polyester/Polypropylene felts (PPXL, PEXL) 

Micron rating: 1-200µm

Construction: w/w/w (fully welded, no by-pass) 

A coarse inner layer, graded pore structure, greater depth than standard bags, providing excellent filtration performance for removing gels, irregular shaped particles

Up to twice the dirt holding capacity of a standard filter bag 

Increase productivity due to longer, uninterrupted processing/run times 

Reduce operating cost-savings due to fewer filter change-outs and reduced filter element disposal costs due to lower bag consumption, downtime, change-out labor, storage and disposal

The coarse, pre-filtering layer captures a large amount of contaminants without excess surface loading

Surface glazed with no fiber fall, providing higher filtration efficiency and eliminating unwanted fiber migration

Welded seam construction eliminates liquid bypass 


Micron Rating
Max. Operating Temperature
Felt, Extended Life Polyester (PEXL)1,3,5,10,25,30,35,50,75,100,150,200265/302°F (130/150°C) 
Felt, Extended Life Polypropylene (PPXL)1,3,5,10,25,30,35,50,75,100,150,200194/230°F (90/110°C)

Ring: PP/PE plastic 

Bag sizes:  #1, #2, others on request

Ordering Information

How to order a felt filter bag

1) Material2) Micron Rating3) Finish4) Size5) Ring6) Ring/side/bottom Construction
PEXL-Felt, Extended Life PolyesterPEXL:1-200PL-Plain #1S- Carbon Steel WWW- Fully Welded 
PPXL-Felt, Extended Life PolypropylenePPXL:1-200GL-Glazed#2SS-Stainless Steel

SG-Singed & Glazed#3PP-Polypro Ring7) Options

HS-Heat Set#4PE-Polyester RingHS-Handle Strap (additional handle, same media)

P-Polypro PP FlangeA-Automotive (bottom and side seams inside bag)

E-Polyester PE FlangeMC- Mesh Cover

MS-Modified/SpecialSR-Special request

Other micron ratings, other sizes, and special design are available on request

Standard Bag Size#1#2#3#4
Surface Area 2.6 (0.24)5.2 (0.48)0.9 (0.08)1.7 (0.16)
ft2 (m2)
Volume2.1 (7.9)4.5 (17.0)
0.7 (2.7)
U.S gal (liter)0.37 (1.4)
Max. Flow Rate90 (20)180 (40)26 (6)53 (12)
GPM (m3/h) 
Bag Diameter7.0 (180)7.0 (180)4.0 (105)4.0 (105)
inch (mm)
Bag Length17.0/43032.0/8109.0/23015.0/380
Inch (mm)
Other Bag SizeAvailable upon request

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