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
Lube and Hydraulic Pleated Filter Elements
Lube and Hydraulic Pleated Filter Elements
Pleated Depth Filter Cartridges
Pleated Depth Filter Cartridges
Pleated Filter Cartridges
Pleated Filter Cartridges
String-Wound Filter Cartridges
String-Wound Filter Cartridges

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Product Type

Filter Cartridges

Element 1" PROFILE STAR UNICAP 0.8µm NPL

Product ID: H1A1A0081JNPL
Unit of Measure
1/EA
Min Order Qty
1

This product is currently not available. Please contact us for more information.

Poly-Fine® II, Filter Cartridges, Removal Rating 0.2 μm, Highly Asymetric Polysulfone, Length 20 Inches, EPDM product photo

Poly-Fine® II, Filter Cartridges, Removal Rating 0.2 μm, Highly Asymetric Polysulfone, Length 20 Inches, EPDM

Product ID: PFT0220UE
Unit of Measure
1/EA
Min Order Qty
1
Micron
0.2 µm
Poly-Fine® II, Filter Cartridges, Removal Rating 0.2 μm, Highly Asymetric Polysulfone, Length 10 Inches, EPDM, SOE flat closed end external 222 O-rings product photo

Poly-Fine® II, Filter Cartridges, Removal Rating 0.2 μm, Highly Asymetric Polysulfone, Length 10 Inches, EPDM, SOE flat closed end external 222 O-rings

Product ID: PFT0210UEM3
Unit of Measure
1/EA
Min Order Qty
1
Micron
0.2 µm
DFT Classic®, Filter Cartridges, Removal Rating 50 μm, Length 30 Inches, Polypropylene, Bulk packaging product photo

DFT Classic®, Filter Cartridges, Removal Rating 50 μm, Length 30 Inches, Polypropylene, Bulk packaging

Product ID: C050AW30U
Unit of Measure
1/EA
Min Order Qty
1
Packaging
Bulk
See All Attributes

GP 1-4U-X3S 246

Product ID: GP14UX3S246
Unit of Measure
1/EA
Min Order Qty
1

Nexis® A Series Filter Cartridges, Removal Rating 5 μm, Polypropylene, Length 10 inches, Fluorocarbon Elastomer

Product ID: NXA510UM7V
Unit of Measure
60/EA
Min Order Qty
60
Removal Rating
5 µm
Membrane Material
Polypropylene
Cartridge Length (Imperial)
10 in
Cartridge Length (Metric)
254 mm
Cartridge Length (Metric)
25.4 cm
Gasket / O-Ring Material
Fluorocarbon Elastomer
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Poly-Fine® II, Filter Cartridges, Removal Rating 3 μm, Polypropylene, Length 20 Inches, silicone, SOE fin end external 222 O-rings product photo

Poly-Fine® II, Filter Cartridges, Removal Rating 3 μm, Polypropylene, Length 20 Inches, silicone, SOE fin end external 222 O-rings

Product ID: PFT320USM8
Unit of Measure
1/EA
Min Order Qty
1
Micron
3 µm
PERMI-L 57-U-A-R 624 product photo

PERMI-L 57-U-A-R 624

Product ID: PERMIL57UAR624
Unit of Measure
272/EA
Min Order Qty
272
Packaging
Bulk
See All Attributes

Profile® Nylon, Filter Cartridges, Removal Rating 5 μm, Nylon, Length 30 Inches

Product ID: RGN3FN050
Unit of Measure
1/EA
Min Order Qty
1
Removal Rating
5 µm
Membrane Material
Nylon
Cartridge Length (Imperial)
30 in
Cartridge Length (Metric)
762 mm
Cartridge Length (Metric)
76.2 cm
Cartridge Outer Diameter (OD) (Imperial)
2.5 in
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RLS1FPS200

Product ID: RLS1FPS200
Unit of Measure
1/EA
Min Order Qty
1

Duo-Fine® , Filter Cartridges, Removal Rating 1 μm, Length 40 Inches, Nitrile, Blank - DOE with elastomer gasket seals & end caps

Product ID: DFN140UN
Unit of Measure
12/EA
Min Order Qty
12
Removal Rating
1 µm
Cartridge Length (Imperial)
40 in
Cartridge Length (Metric)
1016 mm
Cartridge Length (Metric)
101.6 cm
Gasket / O-Ring Material
Nitrile
End Configuration
Blank - DOE with elastomer gasket seals & end caps
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Nexis® A Series Filter Cartridges, Removal Rating 1 μm, Polypropylene, Length 40 inches, silicone, SOE fin end external 226 O-rings

Product ID: NXA140UM7S
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 Material
Silicone
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3,585 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.