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. 

Filter Cartridges
Filter Cartridges

Order Products

Nominal Length (Imperial)

8 in

Anti Static

No

Beta Rating

BETA 1000

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

Ultipor Glass Fiber 7µm Nitrile Seal 8in 20.32cm length

Product ID: HC7504FKN8H
Unit of Measure
1/EA
Min Order Qty
1
Anti-Static
No
Beta Rating
BETA 1000
Element Series
HC7504
Family
Ultipor
Filter Media
Glass Fiber
Filter Removal Rating (μm)
7 µm
See All Attributes

Ultipor III Glass Fiber 12 micron (Beta 1000) Ethylene Propylene 8in 20.32cm length

Product ID: HC8300FKS8J
Unit of Measure
1/EA
Min Order Qty
1
Anti-Static
No
Beta Rating
BETA 1000
Element Series
HC8300
Family
Ultipor III
Filter Media
Glass Fiber
Filter Removal Rating (μm)
12 µm
See All Attributes

Ultipor III Glass Fiber 25 micron (Beta 1000) Nitrile 8in 20.32cm (REPLACED BY HC8500FRT8Z)

Product ID: HC8500FKT8H
Unit of Measure
1/EA
Min Order Qty
1
Anti-Static
No
Beta Rating
BETA 1000
Element Series
HC8500
Family
Ultipor III
Filter Media
Glass Fiber
Filter Removal Rating (μm)
25 µm
See All Attributes

Ultipor Glass Fiber 7µm Fluorocarbon Seal 8in 20.32cm length

Product ID: HC8904FKN8Z
Unit of Measure
12/EA
Min Order Qty
12
Anti-Static
No
Beta Rating
BETA 1000
Element Series
HC8904
Family
Ultipor
Filter Media
Glass Fiber
Filter Removal Rating (μm)
7 µm
See All Attributes

Ultipor III Glass Fiber 7 micron (Beta 1000) Fluorocarbon 8in 20.32cm

Product ID: HC9020FTN8ZY923
Unit of Measure
12/EA
Min Order Qty
12
Anti-Static
No
Beta Rating
BETA 1000
Element Series
HC9020
Family
Ultipor III
Filter Media
Glass Fiber
Filter Removal Rating (μm)
7 µm
See All Attributes

Ultipor III Glass Fiber 5 micron (Beta 1000) Nitrile 8in 20.32cm (REPLACED BY HC9021FHP8Z)

Product ID: HC9021FDP8H
Unit of Measure
1/EA
Min Order Qty
1
Anti-Static
No
Beta Rating
BETA 1000
Element Series
HC9021
Family
Ultipor III
Filter Media
Glass Fiber
Filter Removal Rating (μm)
5 µm
See All Attributes

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

Product ID: HC9021FTP8Z
Unit of Measure
12/EA
Min Order Qty
12
Anti-Static
No
Beta Rating
BETA 1000
Element Series
HC9021
Family
Ultipor III
Filter Media
Glass Fiber
Filter Removal Rating (μm)
5 µm
See All Attributes

Ultipor III Glass Fiber 17 micron (Beta 1000) Nitrile 8in 20.32cm (REPLACED BY HC9101FHT8Z)

Product ID: HC9101FDT8H
Unit of Measure
1/EA
Min Order Qty
1
Anti-Static
No
Beta Rating
BETA 1000
Element Series
HC9101
Family
Ultipor III
Filter Media
Glass Fiber
Filter Removal Rating (μm)
17 µm
See All Attributes

Ultipor III Glass Fiber 12 micron (Beta 1000) Nitrile 8in 20.32cm (REPLACED BY HC9101FHS8Z)

Product ID: HC9101FDS8H
Unit of Measure
1/EA
Min Order Qty
1
Anti-Static
No
Beta Rating
BETA 1000
Element Series
HC9101
Family
Ultipor III
Filter Media
Glass Fiber
Filter Removal Rating (μm)
12 µm
See All Attributes

Ultipor III Glass Fiber 7 micron (Beta 1000) Fluorocarbon 8in 20.32cm (REPLACED BY HC9600FRN8Z)

Product ID: HC9600FKN8Z
Unit of Measure
1/EA
Min Order Qty
1
Anti-Static
No
Beta Rating
BETA 1000
Element Series
HC9600
Family
Ultipor III
Filter Media
Glass Fiber
Filter Removal Rating (μm)
7 µm
See All Attributes

High Temp Ultipor® II Filter Element

Product ID: HC9600FTN8Z
Unit of Measure
1/EA
Min Order Qty
1
Anti-Static
No
Beta Rating
BETA 1000
Element Series
HC9600
Family
Ultipor III
Filter Media
Glass Fiber
Filter Removal Rating (μm)
7 µm
See All Attributes
91 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.