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. 

Air Gas Vent Filters
Air Gas Vent Filters
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Disc Filters
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Sterilization Option(s)

Suitable for Autoclave

Posidyne® - Kleenpak™ Capsules

Kleenpak™ Capsules with Posidyne® Membrane meet cleanliness requirement per USP Particulates in Injectable. It features positive Zeta potential for enhanced efficiency in aqueous solutions. Capsules contain a double-layer sterilizing membrane for high reliability and high-quality product. Filters are self-contained and designed for small sterile filtration systems throughout a range of acidic to basic solutions.

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HDC® II Membrane in Kleenpak™ Capsules for Liquid Applications

Using an all polypropylene shell and filter medium, Pall's HDC® II Membrane in Kleenpak™ Capsules for Liquid Applications provides a long service life. Its design contains a minimized hold up volume for maximum product recovery. Fiber throughout filter media varies in diameter to allow a high contaminant holding capacity. Design also includes fixed pores to prevent contaminants from unloading in varying pressures.

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HDC® II membrane 47 mm diameter discs, 20 µm removal rating, 17 cm² EFA, pack of 25

Product ID: FTKJ200
Unit of Measure
1/EA
Min Order Qty
1
Format
47 mm disc
Removal Rating
20 µm
Effective Filtration Area (Metric)
17 cm²
Membrane Material
Polypropylene
Membrane Brand
HDC II
Industry-Specific Certification
Pharmaceutical Grade
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HDC® II membrane in Kleenpak™ capsule, 6 µm removal rating, 300 cm² EFA, 1½ in sanitary flange inlet and ¼-½ in outlet connections product photo

HDC® II membrane in Kleenpak™ capsule, 6 µm removal rating, 300 cm² EFA, 1½ in sanitary flange inlet and ¼-½ in outlet connections

Product ID: KA1J060P1
Unit of Measure
1/EA
Min Order Qty
1
Removal Rating
6 µm
See All Attributes
HDC® II membrane in Kleenpak™ capsule, 1.2 µm removal rating, 600 cm² EFA, 1½ in sanitary flange inlet and ¼-½ in outlet connections product photo

HDC® II membrane in Kleenpak™ capsule, 1.2 µm removal rating, 600 cm² EFA, 1½ in sanitary flange inlet and ¼-½ in outlet connections

Product ID: KA1J012P1
Unit of Measure
1/EA
Min Order Qty
1
Removal Rating
1.2 µm
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HDC® II membrane in Kleenpak™ capsule, 10 µm removal rating, 300 cm² EFA, 1½ in sanitary flange inlet and ¼-½ in outlet connections product photo

HDC® II membrane in Kleenpak™ capsule, 10 µm removal rating, 300 cm² EFA, 1½ in sanitary flange inlet and ¼-½ in outlet connections

Product ID: KA1J100P1
Unit of Measure
1/EA
Min Order Qty
1
Removal Rating
10 µm
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This product is currently not available. Please contact us for more information.

HDC® II membrane in Kleenpak™ capsule, 4.5 µm removal rating, 600 cm² EFA, 1½ in sanitary flange inlet and ¼-½ in outlet connections product photo

HDC® II membrane in Kleenpak™ capsule, 4.5 µm removal rating, 600 cm² EFA, 1½ in sanitary flange inlet and ¼-½ in outlet connections

Product ID: KA1J045P1
Unit of Measure
1/EA
Min Order Qty
1
Removal Rating
4.5 µm
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HDC® II membrane in Kleenpak™ capsule, 0.6 µm removal rating, 1000 cm² EFA, 1½ in sanitary flange inlet and ¼-½ in outlet connections product photo

HDC® II membrane in Kleenpak™ capsule, 0.6 µm removal rating, 1000 cm² EFA, 1½ in sanitary flange inlet and ¼-½ in outlet connections

Product ID: KA2J006P1
Unit of Measure
1/EA
Min Order Qty
1
Removal Rating
0.6 µm
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8 Items
  • 1

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.