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

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Availability

In Stock

Product Type

Filter Cartridges

Filter Media

Polypropylene

Poly-Fine® II, Filter Cartridges, Removal Rating 5 μm, Polypropylene, Length 30 Inches, Fluorocarbon Elastomer, SOE fin end external 225 O-ring product photo

Poly-Fine® II, Filter Cartridges, Removal Rating 5 μm, Polypropylene, Length 30 Inches, Fluorocarbon Elastomer, SOE fin end external 225 O-ring

Product ID: PFT530UVM22
Unit of Measure
1/EA
Min Order Qty
1
Micron
5 µm
Poly-Fine® II, Filter Cartridges, Removal Rating 0.25 μm, Polypropylene, Length 20 Inches, Silicone Elastomer product photo

Poly-Fine® II, Filter Cartridges, Removal Rating 0.25 μm, Polypropylene, Length 20 Inches, Silicone Elastomer

Product ID: PFT02520USM7W480
Unit of Measure
12/EA
Min Order Qty
12
Micron
0.25 µm
Profile® II, Filter Cartridges, Polypropylene, Length 20 Inches, Timonium product photo

Profile® II, Filter Cartridges, Polypropylene, Length 20 Inches, Timonium

Product ID: RM2F010H21TIMONIUM
Unit of Measure
48/EA
Min Order Qty
48
Removal Rating
1 µm
Membrane Material
Polypropylene
Filter Cartridge Style
RMF-style
Cartridge Length (Imperial)
20 in
Cartridge Length (Metric)
508 mm
Cartridge Length (Metric)
50.8 cm
See All Attributes

Profile® II, Filter Cartridges, Polypropylene, Length 20 Inches, Timonium

Product ID: R2F200TIMONIUM
Unit of Measure
24/EA
Min Order Qty
24
Membrane Material
Polypropylene
Filter Cartridge Style
RF-style
Cartridge Length (Imperial)
20 in
Cartridge Length (Metric)
508 mm
Cartridge Length (Metric)
50.8 cm
End Configuration
R type housing
See All Attributes

Profile® II, Filter Cartridges, Polypropylene, Length 10 Inches

Product ID: RM1F010H21
Unit of Measure
6/EA
Min Order Qty
6
Removal Rating
1 µm
Membrane Material
Polypropylene
Filter Cartridge Style
RMF-style
Cartridge Length (Imperial)
10 in
Cartridge Length (Metric)
254 mm
Cartridge Length (Metric)
25.4 cm
See All Attributes
Poly-Fine® II, Filter Cartridges, Removal Rating 0.45 μm, Polypropylene, Length 30 Inches, silicone, SOE fin end external 222 O-rings product photo

Poly-Fine® II, Filter Cartridges, Removal Rating 0.45 μm, Polypropylene, Length 30 Inches, silicone, SOE fin end external 222 O-rings

Product ID: PFT04530USM8
Unit of Measure
1/EA
Min Order Qty
1
Micron
0.45 µm

Profile® II, Filter Cartridges, Polypropylene, Length 10 Inches, Timonium

Product ID: R1F700TIMONIUM
Unit of Measure
1/EA
Min Order Qty
1
Membrane Material
Polypropylene
Filter Cartridge Style
RF-style
Cartridge Length (Imperial)
10 in
Cartridge Length (Metric)
254 mm
Cartridge Length (Metric)
25.4 cm
End Configuration
R type housing
See All Attributes
Nexis® A Series Filter Cartridges, Removal Rating 1 μm, Polypropylene, Length 30 inches, silicone, SOE flat closed end external 222 O-rings product photo

Nexis® A Series Filter Cartridges, Removal Rating 1 μm, Polypropylene, Length 30 inches, silicone, SOE flat closed end external 222 O-rings

Product ID: NXA130UM3S
Unit of Measure
1/EA
Min Order Qty
1
Micron
1 micron

Claris® Filter Cartridge, CLR140M8WS480

Product ID: CLR140M8WS480
Unit of Measure
24/EA
Min Order Qty
24
Removal Rating
1 µm
Membrane Material
Polypropylene
Filter Cartridge Style
Code 8
Cartridge Length (Imperial)
40 in
Cartridge Length (Metric)
1016 mm
Cartridge Length (Metric)
101.6 cm
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Profile® II Filter Cartridges, AB4Y0057WH4

Product ID: AB4Y0057WH4
Unit of Measure
1/EA
Min Order Qty
1
Removal Rating
0.5 µm
Membrane Material
Polypropylene
Filter Cartridge Style
Code 7
Maximum Differential Pressure
4 bard @ < 30° C (86◦ F)
Cage, Core, Fin End and Endcap
Polypropylene
Food Contact Compliant
Yes
See All Attributes
Poly-Fine® II, Filter Cartridges, Removal Rating 0.8 μm, Polypropylene, Length 20 Inches, silicone, SOE fin end external 222 O-rings, No Bubble Test product photo

Poly-Fine® II, Filter Cartridges, Removal Rating 0.8 μm, Polypropylene, Length 20 Inches, silicone, SOE fin end external 222 O-rings, No Bubble Test

Product ID: PFT0820USM8
Unit of Measure
1/EA
Min Order Qty
1
Micron
0.8 µm
Poly-Fine® II, Filter Cartridges, Removal Rating 5 μm, Polypropylene, Length 20 Inches, EPDM, DOE industrial, No Bubble Test product photo

Poly-Fine® II, Filter Cartridges, Removal Rating 5 μm, Polypropylene, Length 20 Inches, EPDM, DOE industrial, No Bubble Test

Product ID: PFT520UE
Unit of Measure
1/EA
Min Order Qty
1
Micron
5 µm
145 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.