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. 

Filter Cartridges
Filter Cartridges

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Product Type

Filter Cartridges

Cartridge Length (Metric)

254 mm

DFT Classic®, Filter Cartridges, Removal Rating 30 μm, Length 10 Inches, 304 stainless steel

Product ID: C030A10A
Unit of Measure
30/EA
Min Order Qty
30
Removal Rating
30 µm
Cartridge Length (Imperial)
10 in
Cartridge Length (Metric)
254 mm
Cartridge Length (Metric)
25.4 cm
Cartridge Outer Diameter (OD) (Imperial)
2.5 in
Cartridge Outer Diameter (OD) (Metric)
6.4 cm
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Nexis® A Series Filter Cartridges, Removal Rating 1 μm, Polypropylene, Length 10 inches, silicone

Product ID: NXA110UM7S
Unit of Measure
60/EA
Min Order Qty
60
Removal Rating
1 µm
Membrane Material
Polypropylene
Cartridge Length (Imperial)
10 in
Cartridge Length (Metric)
254 mm
Cartridge Length (Metric)
25.4 cm
Gasket / O-Ring Material
Silicone
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Nexis® T Filter Cartridges, Removal Rating 3 μm, Polypropylene, Length 10 inches product photo

Nexis® T Filter Cartridges, Removal Rating 3 μm, Polypropylene, Length 10 inches

Product ID: NXT310U
Unit of Measure
1/pkg
Min Order Qty
1
Micron
3 micron

Nexis® T Filter Cartridges, Removal Rating 75 μm, Polypropylene, Length 10 inches, EPDM, DOE with elastomer gasket seals and end caps

Product ID: NXT7510UDOEE
Unit of Measure
30/EA
Min Order Qty
30
Removal Rating
75 µm
Membrane Material
Polypropylene
Cartridge Length (Imperial)
10 in
Cartridge Length (Metric)
254 mm
Cartridge Length (Metric)
25.4 cm
Gasket / O-Ring Material
EPDM
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Discontinued

This part is no longer available. Please contact us for more information.
PolyFine-II Filter Cartridge, Highly asymmetric polysulfone, 0.2 µm, 10 in, Nitrile (standard gaskets) product photo

PolyFine-II Filter Cartridge, Highly asymmetric polysulfone, 0.2 µm, 10 in, Nitrile (standard gaskets)

Product ID: PFT0210UN44
Unit of Measure
1/EA
Min Order Qty
1
Micron
0.2 µm

PAREQII Filter Cartridge, AB1PAREQII7WH4

Product ID: AB1PAREQII7WH4
Unit of Measure
1/EA
Min Order Qty
1
Membrane Material
Polyethersulfone (PES)
Effective Filtration Area (Metric m²)
0.75 m²
Filter Cartridge Style
Code 7
Cartridge Length (Imperial)
10 in
Cartridge Length (Metric)
254 mm
Cartridge Length (Metric)
25.4 cm
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Supor® Beverage Filter Cartridges, AB1SBB7WH4

Product ID: AB1SBB7WH4
Unit of Measure
1/EA
Min Order Qty
1
Removal Rating
0.45 µm
Membrane Material
Polyethersulfone (PES)
Industry-Specific Certification
W480 Food Contact
Filter Cartridge Style
Code 7
Cartridge Length (Imperial)
10 in
Cartridge Length (Metric)
254 mm
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Poly-Fine® II, Filter Cartridges, Removal Rating 0.45 μm, Polypropylene, Length 10 Inches, Expanded PTFE gaskets FEP encapsulated silicone Orings, DOE industrial product photo

Poly-Fine® II, Filter Cartridges, Removal Rating 0.45 μm, Polypropylene, Length 10 Inches, Expanded PTFE gaskets FEP encapsulated silicone Orings, DOE industrial

Product ID: PFT04510UT
Unit of Measure
1/EA
Min Order Qty
1
Micron
0.45 µm
Poly-Fine® II Filter Cartridge, PFT04510USM7W480 product photo

Poly-Fine® II Filter Cartridge, PFT04510USM7W480

Product ID: PFT04510USM7W480
Unit of Measure
1/EA
Min Order Qty
1
Micron
0.45 µm

Poly-Fine® II, Filter Cartridges, Removal Rating 10 μm, Polypropylene, Length 10 Inches, Expanded PTFE gaskets FEP encapsulated silicone Orings, SOE fin end external 226 O-rings

Product ID: PFT1010UTM7
Unit of Measure
1/EA
Min Order Qty
1
Removal Rating
10 µm
Membrane Material
Polypropylene
Industry-Specific Certification
General Use
Cartridge Length (Imperial)
10 in
Cartridge Length (Metric)
254 mm
Cartridge Length (Metric)
25.4 cm
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DFT Classic®, Filter Cartridges, Removal Rating 25 μm, Length 10 Inches, 304 stainless steel product photo

DFT Classic®, Filter Cartridges, Removal Rating 25 μm, Length 10 Inches, 304 stainless steel

Product ID: G025A10A1PK
Unit of Measure
1/EA
Min Order Qty
1
Packaging
Individually wrapped
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Poly-Fine® II, Filter Cartridges, Removal Rating 30 μm, Polypropylene, Length 10 Inches, Fluorocarbon Elastomer, SOE fin end external 222 O-rings

Product ID: PFT3010UVM8
Unit of Measure
1/EA
Min Order Qty
1
Removal Rating
30 µm
Membrane Material
Polypropylene
Industry-Specific Certification
General Use
Cartridge Length (Imperial)
10 in
Cartridge Length (Metric)
254 mm
Cartridge Length (Metric)
25.4 cm
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560 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.