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. 

Order Products

Seal Material

Viton

INDICATOR RCA217UZ090ZX

Product ID: RCA217UZ090ZX
Unit of Measure
1/EA
Min Order Qty
1
Indication Pressure (Metric)
2.4 bar
Seal Material
Viton
Switch Type
Normally Open

INDICATOR RCA217UZ091ZX

Product ID: RCA217UZ091ZX
Unit of Measure
1/EA
Min Order Qty
1
Indication Pressure (Metric)
3.4 bar
Seal Material
Viton
Switch Type
Normally Open

INDICATOR RCA216CZ091Z

Product ID: RCA216CZ091Z
Unit of Measure
1/EA
Min Order Qty
1
Indication Pressure (Metric)
3.4 bar
Seal Material
Viton
Switch Type
Normally Closed

INDICATOR RCA216CZ090ZX

Product ID: RCA216CZ090ZX
Unit of Measure
1/EA
Min Order Qty
1
Indication Pressure (Metric)
2.4 bar
Seal Material
Viton
Switch Type
Normally Open

INDICATOR RCA218MZ097Z

Product ID: RCA218MZ097Z
Unit of Measure
1/EA
Min Order Qty
1
Indication Pressure (Metric)
6.9 bar
Seal Material
Viton
Switch Type
SPDT

INDICATOR RCA217UZ091Z

Product ID: RCA217UZ091Z
Unit of Measure
1/EA
Min Order Qty
1
Indication Pressure (Metric)
3.4 bar
Seal Material
Viton
Switch Type
Normally Closed

INDICATOR RCA218RZ091Z

Product ID: RCA218RZ091Z
Unit of Measure
1/EA
Min Order Qty
1
Indication Pressure (Metric)
3.4 bar
Seal Material
Viton
Switch Type
SPDT

INDICATOR RCA218MZ084Z

Product ID: RCA218MZ084Z
Unit of Measure
1/EA
Min Order Qty
1
Indication Pressure (Metric)
1.1 bar
Seal Material
Viton
Switch Type
SPDT

INDICATOR RCA218MZ091Z

Product ID: RCA218MZ091Z
Unit of Measure
1/EA
Min Order Qty
1
Indication Pressure (Metric)
3.4 bar
Seal Material
Viton
Switch Type
SPDT

INDICATOR RCA218RZ084Z

Product ID: RCA218RZ084Z
Unit of Measure
1/EA
Min Order Qty
1
Indication Pressure (Metric)
1.1 bar
Seal Material
Viton
Switch Type
SPDT

RCA222ZK8069 PRESSURE TRANSDUCER

Product ID: RCA222ZK8069
Unit of Measure
1/EA
Min Order Qty
1
Electrical Output
4-20 mA mA
Lower Indication Pressure (Metric)
4.8 bar
Maximum Pressure Range (Metric)
8 bar
Minimum Pressure Range (Metric)
2 bar
Seal Material
Viton
Upper Indication Point (Metric)
6.9 bar
See All Attributes

INDICATOR RCA219DZ084Z

Product ID: RCA219DZ084Z
Unit of Measure
1/EA
Min Order Qty
1
Indication Pressure (Metric)
1.1 bar
Seal Material
Viton
Switch Type
Visual
20 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.