String-wound Depth Filter Cartridges

A Long Service Life and High Contaminant Loading Capacity 

Pall’s string-wound depth filters are designed for advanced and efficient particulate removal performance and high contaminant holding capacity. Compared to traditional polypropylene or polyester materials, these filter cartridges use woven media yarn around the core and have high chemical, temperature, and process fluid compatibility. Available with 10+ different medium options these cartridges are also an economical low-cost choice compared to depth and pleated style filters. 

Depth Filter Cartridges
Depth Filter Cartridges
Pleated Filter Cartridges
Pleated Filter Cartridges

Order Products

Industries

Food & Beverage

Cartridge Length (Imperial)

40 in

Product Type

Filter Cartridges

Cartridge Length (Metric)

1016 mm

Oenopure™ Filter Cartridges, AB4GB8WJ

Product ID: AB4GB8WJ
Unit of Measure
1/EA
Min Order Qty
1
Removal Rating
0.45 µm
Membrane Material
Hydrophillic Polyethersulfone
Effective Filtration Area (Metric cm²)
2.4 cm²
Filter Cartridge Style
Code 8
Cartridge Length (Imperial)
40 in
Cartridge Length (Metric)
1016 mm
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This product is currently not available. Please contact us for more information.

Pall Beer Final Filter AB4BB7WH32 with Bayonet Lock and Double 226 O-rings

Product ID: 5703810
Unit of Measure
1/EA
Min Order Qty
1
Removal Rating
0.45 µm
Cartridge Length (Imperial)
40 in
Cartridge Length (Metric)
1016 mm
Cartridge Length (Metric)
101.6 cm
Gasket / O-Ring Material
Silicone Elastomer
Cage, Core, Fin End and Endcap
Polypropylene
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Poly-Fine® II Filter Cartridge, PFT02540USM7W480 product photo

Poly-Fine® II Filter Cartridge, PFT02540USM7W480

Product ID: PFT02540USM7W480
Unit of Measure
12/EA
Min Order Qty
12
Micron
0.25 µm

Claris® Filter Cartridge, CLR140W480

Product ID: CLR140W480
Unit of Measure
12/EA
Min Order Qty
12
Removal Rating
1 µm
Membrane Material
Polypropylene
Cartridge Length (Imperial)
40 in
Cartridge Length (Metric)
1016 mm
Cartridge Length (Metric)
101.6 cm
Gasket O-Ring Code
Blank
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Supor® Beverage Filter Cartridges, 40in, Silicone Elastomer

Product ID: AB4SBB7WH4
Unit of Measure
1/EA
Min Order Qty
1
Cartridge Length (Imperial)
40 in
Cartridge Length (Metric)
1016 mm
Cartridge Length (Metric)
101.6 cm
Gasket / O-Ring Material
Silicone Elastomer
Gasket O-Ring Code
H4
Maximum Differential Pressure
5.5 bard (79.8 psid) (forward pressure)
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Claris® Filter Cartridge, CLR140M8WS480

Product ID: CLR140M8WS480
Unit of Measure
24/EA
Min Order Qty
24
Removal Rating
1 µm
Membrane Material
Polypropylene
Filter Cartridge Style
Code 8
Cartridge Length (Imperial)
40 in
Cartridge Length (Metric)
1016 mm
Cartridge Length (Metric)
101.6 cm
See All Attributes

Claris® Filter Cartridge, CLR540W480

Product ID: CLR540W480
Unit of Measure
24/EA
Min Order Qty
24
Removal Rating
5 µm
Membrane Material
Polypropylene
Cartridge Length (Imperial)
40 in
Cartridge Length (Metric)
1016 mm
Cartridge Length (Metric)
101.6 cm
Gasket O-Ring Code
Blank
See All Attributes

Ultipor® N66 Filter Cartridges, Nylon Hardware, 0.45 µm Single Layer, 40 in, Single Open Ended Code 7, Silicone Elastomer O-ring

Product ID: ABN4NB7BWH4
Unit of Measure
1/EA
Min Order Qty
1
Removal Rating
0.45 µm
Cartridge Length (Imperial)
40 in
Cartridge Length (Metric)
1016 mm
Cartridge Length (Metric)
101.6 cm
Gasket / O-Ring Material
Silicone Elastomer
Gasket O-Ring Code
H4
See All Attributes

Claris® Filter Cartridge, 5 µm, 40 in, Single Open End with Flat Closed End, 2 locking Tabs and External 226 O-rings

Product ID: CLR540M6WS480
Unit of Measure
12/EA
Min Order Qty
12
Removal Rating
5 µm
Membrane Material
Polypropylene
Cartridge Length (Imperial)
40 in
Cartridge Length (Metric)
1016 mm
Cartridge Length (Metric)
101.6 cm
Gasket / O-Ring Material
Silicone Elastomer
See All Attributes
Poly-Fine® II Filter Cartridge, PFT540USM7W480 product photo

Poly-Fine® II Filter Cartridge, PFT540USM7W480

Product ID: PFT540USM7W480
Unit of Measure
12/EA
Min Order Qty
12
Micron
5 µm

Claris® Filter Cartridge, CLR140M8WE480

Product ID: CLR140M8WE480
Unit of Measure
12/EA
Min Order Qty
12
Removal Rating
1 µm
Membrane Material
Polypropylene
Filter Cartridge Style
Code 8
Cartridge Length (Imperial)
40 in
Cartridge Length (Metric)
1016 mm
Cartridge Length (Metric)
101.6 cm
See All Attributes
Poly-Fine® II Filter Cartridge, PFT04540USM7W480 product photo

Poly-Fine® II Filter Cartridge, PFT04540USM7W480

Product ID: PFT04540USM7W480
Unit of Measure
12/EA
Min Order Qty
12
Micron
0.45 µm
13 Items

Description

String-wound filter cartridges are a type of depth filter cartridge that is made by weaving yarn (cotton, glass fiber, polypropylene, polyester, nylon, and polyphenylene sulfide (PPS))around a core usually of 304 SS or 316 SS. 

Product Highlights:
  • High chemical and temperature compatibility
  • 10+ different medium options 
  • Economical choice

Specifications

Product Attributes Values
String-Wound Filters Filter Medium
  • Bleached cotton
  • Standard cotton
  • Natural cotton
  • Glass fiber
  • Heat purified glass fiber
  • Premium polypropylene
  • Standard polypropylene
  • Rayon
  • Polyester
  • Nylon
  • Acrylic
  • Polyphenylene sulfide (PPS)
  • Polytetrafluoroethylene (fluoropolymer)

Filter Grade Range

 0.5 μm to 350 μm
Length 10.2 cm (4 in.) to 127 cm (50 in.)

Applications/Uses

Pall’s string-wound filter cartridges are used for a variety of applications, including chemicals and polymer, oil and gas, and microelectronics.

Chemicals and Polymer

  • Midstream Process Water 
  • Poly Commodity Raw Material (Fluids)
  • Poly Commodity Intermediates (Fluids)
  • Poly Engineered & Special Raw Material (Fluids)
  • Poly Engineered & Special Intermediate (Fluids)

Oil and Gas

  • Upstream Offshore Boiler Water
  • Upstream Offshore Produced Water
  • Upstream Onshore Produced Water
  • Upstream Onshore Surface Discharged Water
  • Midstream Process Water
  • Upstream Injection Water & SRU

Microelectronics

  • Acid etch systems - including Piranha Etch Solvent Strip applications
  • Most aggressive and/or high temperature acids or solvents

Chemicals

  • Polishing of chemical solutions
  • Bulk industrial chemicals
  • Solvents
  • Acids
  • Bases
  • Monomers
  • Process and cooling water

Magnetic Coatings

  • Audio
  • Video & computer tape
  • Floppy discs
  • Computer hard discs
  • Solvents

Photographic

  • Photo emulsions
  • Chemicals
  • Wash & rinse water

Oil Production

  • Well completion fluids
  • Water flood

Air & Gas

  • Compressed air
  • Instrument air
  • Nitrogen
  • Hydrogen
  • Helium
  • Freon
  • Most corrosive gases

Other

  • Solution mining
  • Deep well disposal
  • Paint
  • Ink & coatings
  • Lubricating oils
  • Electropolishing solutions
  • Plating solutions
  • Pigments & dyes
  • Cleaning fluids
  • Adhesives

FAQs

1. Which are the two series that Pall offers for string-wound filters?

Pall offers string-wound filters in the DFT Classic and Encore Series.

 

2. Why choose Pall’s string-wound depth filters?

Pall’s string-wound depth filters are designed for advanced and efficient particulate removal performance and high contaminant holding capacity. These filter cartridges have high chemical, temperature, and process fluid compatibility compared to traditional polypropylene or polyester materials and come with 10+ different medium options.