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. 

Food & Beverage
Food & Beverage
Industrial Manufacturing
Industrial Manufacturing
Oil & Gas
Oil & Gas

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Industries

Food & Beverage

Poly-Fine® II, Filter Cartridges, Removal Rating 0.2 μm, Highly Asymetric Polysulfone, Length 30 Inches, Fluorocarbon Elastomer, product photo

Poly-Fine® II, Filter Cartridges, Removal Rating 0.2 μm, Highly Asymetric Polysulfone, Length 30 Inches, Fluorocarbon Elastomer,

Product ID: PFT0230UVSI
Unit of Measure
1/EA
Min Order Qty
1
Micron
0.2 µm
FEATURED

Junior Filter Emflon PFR 0.2µm

Product ID: SBF1PFRWH4
Unit of Measure
1/EA
Min Order Qty
1
Removal Rating
0.2 µm
Membrane Material
Double Layer PTFE
Industry-Specific Certification
W480 Food Contact
Effective Filtration Area (Metric cm²)
410 cm²
Filter Cartridge Style
SBF-style junior
Cartridge Length (Imperial)
10 in
See All Attributes
PFT 0.45-40US-M8W 480 product photo

PFT 0.45-40US-M8W 480

Product ID: PFT04540USM8W480
Unit of Measure
1/EA
Min Order Qty
1
Micron
0.45 µm
PFT 0.8-10US-M3W 480 product photo

PFT0810USM3W480

Product ID: PFT0810USM3W480
Unit of Measure
1/EA
Min Order Qty
1
Micron
0.8 µm

Discontinued

This part is no longer available. Please contact us for more information.
Poly-Fine® II, Filter Cartridges, Removal Rating 0.8 μm, Polypropylene, Length 20 Inches, silicone, DOE industrial, No Bubble Test product photo

Poly-Fine® II, Filter Cartridges, Removal Rating 0.8 μm, Polypropylene, Length 20 Inches, silicone, DOE industrial, No Bubble Test

Product ID: PFT0820US
Unit of Measure
1/EA
Min Order Qty
1
Micron
0.8 µm
Poly-Fine® II, Filter Cartridges, Removal Rating 0.8 μm, Polypropylene, Length 30 Inches, FEP encapsulated Fluorocarbon Elastomer Orings product photo

Poly-Fine® II, Filter Cartridges, Removal Rating 0.8 μm, Polypropylene, Length 30 Inches, FEP encapsulated Fluorocarbon Elastomer Orings

Product ID: PFT0830UFM7
Unit of Measure
1/EA
Min Order Qty
1
Micron
0.8 µm
PFT 0.8-30UH-M7W 480 product photo

PFT 0.8-30UH-M7W 480

Product ID: PFT0830UHM7W480
Unit of Measure
1/EA
Min Order Qty
1
Micron
0.8 µm

SUPRAdisc SD II 080 200X080C232SPW

Product ID: 7007865
Unit of Measure
1/EA
Min Order Qty
1
1. Recommended Max. Backpressure During Backwash
0.5 bar
2. Recommended Max. Backpressure During Backwash
7.25 psid
Adaptor Type
Double Open End, Flat Gasket
Core Drainage Discs
Polypropylene
Diameter (Imperial)
12 in
Diameter (Metric)
287 mm
See All Attributes

Seitz® K Series Depth Filter Sheets, for Fine Filtration, SEITZ-EK 1 933x933 4L54

Product ID: 5300515
Unit of Measure
25/EA
Min Order Qty
25
Filter Media
Kieselguhr, Perlite and Cellulose Fibers
Filter Area (Imperial)
9.35 ft²
Filter Area (Metric)
0.87 m²
Hot Water Sanitization
90 °C
Recommended max.dp
1.5 bar
Size (Imperial)
36.7 x 36.7 in
See All Attributes

Discontinued

This part is no longer available. Please contact us for more information.

SUPRAdisc SD II EK 1 200XEK1C440SP

Product ID: 7007249
Unit of Measure
1/EA
Min Order Qty
1

SUPRAdisc SD II EK 1 200XEK1C232SPW

Product ID: 7007871
Unit of Measure
1/EA
Min Order Qty
1
1. Recommended Max. Backpressure During Backwash
0.5 bar
2. Recommended Max. Backpressure During Backwash
7.25 psid
Adaptor Type
Double Open End, Flat Gasket
Core Drainage Discs
Polypropylene
Diameter (Imperial)
12 in
Diameter (Metric)
287 mm
See All Attributes

SUPRAdisc SD II EK 1 200XEK1C440SPW

Product ID: 7007931
Unit of Measure
1/EA
Min Order Qty
1
Adaptor End Configuration
Double Open End, Flat Gasket
1. Recommended Max. Backpressure During Backwash
0.5 bar
Plastic Material
Polypropylene
2. Recommended Max. Backpressure During Backwash
7.25 psid
Adaptor Type
Double Open End, Flat Gasket
Core Drainage Discs
Polypropylene
See All Attributes
502 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.