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. 

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Air Breathers
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Cleanliness Cabinet Service Instruments
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Depth Filtration
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Diagnostic Monitoring Equipment
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GeneDisc
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Housings Vessels Assemblies
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Integrity Test Devices
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IV Filters
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Large Format Filters
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Last Chance Filter Discs
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Order Products

Red1000 Glass Fiber 12 micron (Beta 1000) Nitrile 36in 91.44cm

Product ID: HC2296FKS36H
Unit of Measure
1/EA
Min Order Qty
6
Anti-Static
No
Beta Rating
BETA 1000
Element Series
HC2296
Family
Red1000
Filter Media
Glass Fiber
Filter Removal Rating (μm)
12 µm
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This product is currently not available. Please contact us for more information.

Ultipor III Glass Fiber 5 micron (Beta 1000) Nitrile 8in 20.32cm length

Product ID: HC9601FDP8H#28
Unit of Measure
1/EA
Min Order Qty
1
Anti-Static
No
Beta Rating
BETA 1000
Element Series
HC9601
Family
Ultipor III
Filter Media
Glass Fiber
Filter Removal Rating (μm)
5 µm
See All Attributes
RT250A10S product photo

RT250A10S

Product ID: RT250A10S
Unit of Measure
1/EA
Min Order Qty
1
Packaging
Bulk
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Nexis® A Series Filter Cartridges, Removal Rating 3 μm, Polypropylene, EPDM

Product ID: NXA3TFUDOEE47
Unit of Measure
5/EA
Min Order Qty
5
Removal Rating
3 µm
Membrane Material
Polypropylene
Gasket / O-Ring Material
EPDM
End Configuration Code
DOE
End Configuration
DOE - DOE with elastomer gasket seals and end caps
Cartridge Type
NXA
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Nexis® A Series Filter Cartridges, Removal Rating 40 μm, Polypropylene, Length 10 inches product photo

Nexis® A Series Filter Cartridges, Removal Rating 40 μm, Polypropylene, Length 10 inches

Product ID: NXA4010U
Unit of Measure
1/pkg
Min Order Qty
1
Micron
40 micron
NXA 40-10U-M7S product photo

Nexis, NXA, 40 μm, 25.4 cm (10 in), SOE fin end, external 226 O-rings (retrofits other manufacturers’ Code 7), Silicone gasket

Product ID: NXA4010UM7S
Unit of Measure
1/EA
Min Order Qty
1
Micron
40 micron

Nexis® A Series Filter Cartridges, Removal Rating 40 μm, Polypropylene, Length 20 inches, silicone

Product ID: NXA4020UM3S
Unit of Measure
12/EA
Min Order Qty
12
Removal Rating
40 µm
Membrane Material
Polypropylene
Cartridge Length (Imperial)
20 in
Cartridge Length (Metric)
508 mm
Cartridge Length (Metric)
50.8 cm
Gasket / O-Ring Material
Silicone
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Discontinued

This part is no longer available. Please contact us for more information.

Nexis® A Series Filter Cartridges, Removal Rating 40 μm, Polypropylene, Length 19.5 inches

Product ID: NXA40195U
Unit of Measure
12/EA
Min Order Qty
12
Removal Rating
40 µm
Membrane Material
Polypropylene
Cartridge Length (Imperial)
19.5 in
Cartridge Length (Metric)
495 mm
Cartridge Length (Metric)
49.5 cm
Gasket / O-Ring Material
NA
See All Attributes
Nexis® A Series Filter Cartridges, Removal Rating 40 μm, Polypropylene, Length 20 inches product photo

Nexis® A Series Filter Cartridges, Removal Rating 40 μm, Polypropylene, Length 20 inches

Product ID: NXA4020U
Unit of Measure
1/pkg
Min Order Qty
1
Micron
40 micron

Nexis® A Series Filter Cartridges, Removal Rating 40 μm, Polypropylene, Length 30 inches

Product ID: NXA4030U946
Unit of Measure
12/EA
Min Order Qty
12
Removal Rating
40 µm
Membrane Material
Polypropylene
Cartridge Length (Imperial)
30 in
Cartridge Length (Metric)
762 mm
Cartridge Length (Metric)
76.2 cm
Gasket / O-Ring Material
NA
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Nexis® A Series Filter Cartridges, Removal Rating 40 μm, Polypropylene, Length 30 inches, Nitrile, SOE flat closed end external 222 O-ring

Product ID: NXA4030UM18N
Unit of Measure
12/EA
Min Order Qty
12
Removal Rating
40 µm
Membrane Material
Polypropylene
Cartridge Length (Imperial)
30 in
Cartridge Length (Metric)
762 mm
Cartridge Length (Metric)
76.2 cm
Gasket / O-Ring Material
Nitrile
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Nexis® A Series Filter Cartridges, Removal Rating 40 μm, Polypropylene, Length 30 inches, Nitrile, SOE flat closed end external 222 O-rings

Product ID: NXA4030UM3N
Unit of Measure
24/EA
Min Order Qty
24
Removal Rating
40 µm
Membrane Material
Polypropylene
Cartridge Length (Imperial)
30 in
Cartridge Length (Metric)
762 mm
Cartridge Length (Metric)
76.2 cm
Gasket / O-Ring Material
Nitrile
See All Attributes
9,539 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.