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

Order Products

Gasket / O-Ring Material

Silicone Elastomer

Poly-Fine® II Filter Cartridge, PFT520USM7W480 product photo

Poly-Fine® II Filter Cartridge, PFT520USM7W480

Product ID: PFT520USM7W480
Unit of Measure
1/EA
Min Order Qty
1
Micron
5 µm

Profile® UP Filter Cartridges, 30 in, 10 µm, Silicone Elastomer

Product ID: AB3UY1007WH4
Unit of Measure
1/EA
Min Order Qty
1
Removal Rating
10 µm
Membrane Material
Polypropylene
Cartridge Length (Imperial)
30 in
Cartridge Length (Metric)
762 mm
Cartridge Length (Metric)
76.2 cm
Gasket / O-Ring Material
Silicone Elastomer
See All Attributes

Ultipor® N66 Filter Cartridges, Nylon Hardware, 0.45 µm Single Layer, 10 in, Single Open Ended Code 7, Silicone Elastomer O-ring

Product ID: ABN1NB7WH4
Unit of Measure
1/EA
Min Order Qty
1
Removal Rating
0.45 µm
Cartridge Length (Imperial)
10 in
Cartridge Length (Metric)
254 mm
Cartridge Length (Metric)
25.4 cm
Gasket / O-Ring Material
Silicone Elastomer
Gasket O-Ring Code
H4
See All Attributes
Poly-Fine® II Filter Cartridge, PFT04510USM3W480 product photo

Poly-Fine® II Filter Cartridge, PFT04510USM3W480

Product ID: PFT04510USM3W480
Unit of Measure
1/EA
Min Order Qty
1
Micron
0.45 µm

Nexis® T Series Filter Cartridges, Polypropylene, 30 µm, 30 in., Silicone Elastomer, M7

Product ID: NXT3030UM7WS480
Unit of Measure
12/EA
Min Order Qty
12
Removal Rating
30 µm
Membrane Material
Polypropylene
Cartridge Length (Imperial)
30 in
Cartridge Length (Metric)
762 mm
Cartridge Length (Metric)
76.2 cm
Gasket / O-Ring Material
Silicone Elastomer
See All Attributes

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
See All Attributes

Claris® Filter Cartridge, 1 µm, 30 in, Single Open Ended with Fin End and External 222 O-rings

Product ID: CLR130M8WS480
Unit of Measure
12/EA
Min Order Qty
12
Removal Rating
1 µm
Membrane Material
Polypropylene
Cartridge Length (Imperial)
30 in
Cartridge Length (Metric)
762 mm
Cartridge Length (Metric)
76.2 cm
Gasket / O-Ring Material
Silicone Elastomer
See All Attributes
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

Nexis® T Series Filter Cartridges 30 in, 100 µm, Single Open End with Fin End, 2 Locking Tabs and External 226 O-ring

Product ID: NXT10030UM7WS480
Unit of Measure
12/EA
Min Order Qty
12
Removal Rating
100 µm
Membrane Material
Polypropylene
Cartridge Length (Imperial)
30 in
Cartridge Length (Metric)
762 mm
Cartridge Length (Metric)
76.2 cm
Gasket / O-Ring Material
Silicone Elastomer
See All Attributes
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

Claris® Filter Cartridge, 5 µm, 40 in, Single Open Ended with Fin End and External 222 O-rings

Product ID: CLR540M8WS480
Unit of Measure
12/EA
Min Order Qty
12
Removal Rating
5 µm
Membrane Material
Polypropylene
Cartridge Length (Imperial)
40 in
Cartridge Length (Metric)
762 mm
Cartridge Length (Metric)
76.2 cm
Gasket / O-Ring Material
Silicone Elastomer
See All Attributes
Poly-Fine® II Filter Cartridge, PFT02510USM8W480 product photo

Poly-Fine® II Filter Cartridge, PFT02510USM8W480

Product ID: PFT02510USM8W480
Unit of Measure
1/EA
Min Order Qty
1
Micron
0.25 µm
52 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.