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. 

Diagnostic Monitoring Equipment
Diagnostic Monitoring Equipment
Filter Capsules
Filter Capsules
Filter Cartridges
Filter Cartridges
Large Format Filters
Large Format Filters

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Product Type

Filter Cartridges

RT250A10S product photo

RT250A10S

Product ID: RT250A10S
Unit of Measure
30/EA
Min Order Qty
30
Packaging
Bulk
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FEATURED

Supralon™ Lube and Hydraulic Elements, Removal Rating 7 μm, GlassFiber, Length 16 inches

Product ID: HC9600FRN16Z
Unit of Measure
6/EA
Min Order Qty
6
Removal Rating
7 µm
Membrane Material
Glass Fiber
DFT Classic®, Filter Cartridges, Removal Rating 1 μm, Length 30 Inches, 304 stainless steel product photo

DFT Classic®, Filter Cartridges, Removal Rating 1 μm, Length 30 Inches, 304 stainless steel

Product ID: C001AW30A
Unit of Measure
1/EA
Min Order Qty
1
DFT Classic®, Filter Cartridges, Removal Rating 1 μm, Length 30 Inches, Polypropylene, FluorocarbonElastomer product photo

DFT Classic®, Filter Cartridges, Removal Rating 1 μm, Length 30 Inches, Polypropylene, FluorocarbonElastomer

Product ID: C001AW30UVM3
Unit of Measure
10/EA
Min Order Qty
10
Packaging
Bulk
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DFT Classic®, Filter Cartridges, Removal Rating 10 μm, Length 20 Inches, Polypropylene

Product ID: C010AW20U
Unit of Measure
10/EA
Min Order Qty
10
Removal Rating
10 µm
Cartridge Length (Imperial)
20 in
Cartridge Length (Metric)
508 mm
Cartridge Length (Metric)
50.8 cm
Cartridge Outer Diameter (OD) (Imperial)
2.5 in
Cartridge Outer Diameter (OD) (Metric)
6.4 cm
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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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DFT Classic®, Filter Cartridges, Removal Rating 75 μm, Length 29.5 Inches, 316 stainless steel product photo

DFT Classic®, Filter Cartridges, Removal Rating 75 μm, Length 29.5 Inches, 316 stainless steel

Product ID: C075AW295S
Unit of Measure
10/EA
Min Order Qty
10
Packaging
Bulk
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Nexis® A Series Filter Cartridges, Removal Rating 0.5 μm, Polypropylene, Length 4 inches

Product ID: NXA054UM3S
Unit of Measure
30/EA
Min Order Qty
30
Removal Rating
0.5 µm
Membrane Material
Polypropylene
Cartridge Length (Imperial)
4 in
Cartridge Length (Metric)
102 mm
Cartridge Length (Metric)
10.2 cm
Gasket / O-Ring Material
Silicone
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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® A Series Filter Cartridges, Removal Rating 1 μm, Polypropylene, DOE industrial (no end caps)

Product ID: NXA1295U
Unit of Measure
24/EA
Min Order Qty
24
Removal Rating
1 µm
Membrane Material
Polypropylene
Gasket / O-Ring Material
NA
End Configuration Code
BLANK
End Configuration
BLANK - DOE industrial (no end caps)
Cartridge Type
NXA
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Nexis® A Series Filter Cartridges, Removal Rating 3 μm, Polypropylene, Length 9.75 inches

Product ID: NXA3975U
Unit of Measure
30/EA
Min Order Qty
30
Removal Rating
3 µm
Membrane Material
Polypropylene
Cartridge Length (Imperial)
9.75 in
Cartridge Length (Metric)
248 mm
Cartridge Length (Metric)
24.8 cm
Gasket / O-Ring Material
NA
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Nexis® A Series Filter Cartridges, Removal Rating 70 μm, Polypropylene, Length 30 inches, Nitrile, SOE flat closed end external 222 O-ring

Product ID: NXA7030UM18N
Unit of Measure
12/EA
Min Order Qty
12
Removal Rating
70 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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4,359 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.