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Conventional Sewn Felt Filter Bags

HL Filter offers a wide range of Polyester liquid filter bags designed and constructed to fit an assortment of filter vessels, whether from HL Filter or from another supplier. We manufacture our own felt media for our felt filter bags under 9001:2008 quality systems, resulting in order to order, year to year, reliability and repeatability. Each filter bag is also individually sealed in protective plastic packaging to prevent contamination. Our filter bags are silicone free with sturdy construction and easy installation.
HL Sewn Filter Bags are made out of 100% polypropylene or polyester fibers, ensuring maximum purity and consistent performance. Using silicone-free threads, high-speed industrial sewing machines, and tight and durable sewn filter bag rings, we offer affordable and reliable sewn filter bags.
  • Product Details

P3S-300-300.jpgPE-P3-300-300.jpg

Features

Materials: Polypropylene, Polyester

Available micron rating range from 0.5-200 µ (for PE, PP)

Continuous operating temperature: PE: 265°F (130°C), PP: 194°F (90°C)

Surface treatments available: signed and/or glazed to reduce the possibility of migration

Resistance to chemicals depends on the materials (please refer to Fiber Characteristics_Liquid Filtration)

Silicone free threads and double stitches for maximum strength

Heavy-duty sewing construction enhancing particle holding capacity

Puncture free overlap side seams provide added strength and improves effluent consistency

Types of ring/side/bottom constructions:  s/s/s fully sewn (w/s/s or s/w/s modifications are available)

Sewing method: five-thread flat lock

Optional covers to eliminate fiber release and migration

All industry-standard #1,2,3,4 & custom sizes available 

Standard or reserving binding

OEM replacement ring styles


Specifications

Standard Needle Punched Felt Samples
Standard Needle Felt, Polypropylene (PP)
Part NumberMicron Rating
Weight
oz/yd²±5% (g/m2±5%)
Thickness
   In±0.004 (mm±0.1)

Air Permeability
 CFM @ ½" W.G 125PA ±25%
(L/dm2min @ 200PA ±25%)
Tensile Strength
 lb/in±25 (N/5CM±25%)
Max. Operating Temperature Continuous/Surge oF (oC)
Warp MDWeft CD
PP-01114.01 (475)0.106 (2.7)32(156)69 (600)91 (800)194/230 (90/110)
PP-05513.17 (450)0.095(2.4)55(270)57 (500)69 (600)194/230 (90/110)
PP-101010.91 (370)0.091(2.3)80(390)57 (500)69 (600)194/230 (90/110)
PP-252510.62 (360)0.091(2.3)123(600)57 (500)69 (600)194/230 (90/110)
PP-505010.32 (350)0.091(2.3)160(780)57 (500)69 (600)194/230 (90/110)
PP-757510.32 (350)0.091(2.3)172(840)57 (500)69 (600)194/230 (90/110)
PP-1001009.73 (3300.091(2.3)252(1230)46 (400)57 (500)194/230 (90/110)
PP-1501509.73 (3300.091(2.3)283(1380)46 (400)57 (500)194/230 (90/110)
PP-2002009.44 (320)0.091(2.3)320(1560)69 (600)103 (900)194/230 (90/110)
Standard Needle Felt, Polyester (PE)
Part NumberMicron RatingWeight
oz/yd²±5% (g/m2±5%)
  Thickness Inch±20%  (mm±20%)Air Permeability
 CFM @ ½" W.G 125PA ±25%
(L/dm2min @ 200PA ±25%)
Tensile Strength
 lb/in±25 (N/5CM±25%)

Max. Operating Temperature Continuous/Surge oF (oC)





Warp MDWeft CD
PE-01114.01 (475)0.075 (1.9)32(156)114 (1000)148 (1300)265/302 (130/150) 
PE-05510.62 (360)0.091 (2.3)61(300)57 (500)114 (1000)265/302 (130/150) 
PE-101010.62 (360)0.087 (2.2)82(400)57 (500)103 (900)265/302 (130/150) 
PE-252510.62 (360)0.095 (2.4)123(600)57 (500)103 (900)265/302 (130/150) 
PE-505010.62 (360)0.102 (2.6)164(800)57 (500)103 (900)265/302 (130/150) 
PE-757510.62 (360)0.098 (2.5)184(900)46 (400)91 (800)265/302 (130/150) 
PE-10010010.62 (360)0.114 (2.9)205(1000)46 (400)91 (800)265/302 (130/150) 
PE-15015010.62 (360)0.122 (3.1)266(1300)46 (400)80 (700)265/302 (130/150) 
PE-20020010.62 (360)0.126 (3.2)307(1500)46 (400)74 (650)265/302 (130/150) 
Further technical data, modified surface treatments, and other micron ratings are available on request

Self-supported felts are standard. Scrim-supported felts are available on request



Applications

General Chemical

Produced Water from Gas Drilling

Process Water

Food and Beverage

Paints and Coatings

Custom OEM Applications


Ordering Information

How to order a felt filter bag




1) Material2) Micron Rating3) Finish4) Size5) Ring6) Ring/side/bottom Construction
PE-Felt, PolyesterPE:0.5-200PL-Plain #1S- Carbon Steel 
PP-Felt, PolypropylenePP:0.5-200SO-Singed One Side#2SS-Stainless SteelSSS- Fully Sewn 


SB-Singed Both Side#3Z- Zinc Galvanized Steel SWS- Ring Sewn, Side Welded, Bottom Sewn


GL-Glazed#4P-Polypro PP FlangeWSS- Ring Welded, Side Sewn, Bottom Sewn


SG-Singed & Glazed
E-Polyester PE Flange


HS-Heat Set
DS-Draw String


MS-Special/modified
VS-High-temp Plastic Snap-seal7) Options




PP-Polypro RingHS-Handle Strap (additional handle, same media)




PE-Polyester RingA-Automotive (bottom and side seams inside bag)




T-TitaniumMC- Mesh Cover




N-No RingSB-Spunbond 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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