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Polypropylene String Wound Cartridge (FDA)
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Polypropylene String Wound Cartridge (FDA)

$3.10
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String wound depth cartridges made with FDA-grade polypropylene yarn wound over a rigid polypropylene core. The gradient-density winding captures particles throughout the media for high dirt-holding capacity and low pressure drop. This 2.5" outside diameter design with DOE (double open end) fits most standard housings.

Key Features

  • 2.5" OD, DOE ends for universal fit in standard housings
  • Polypropylene yarn and polypropylene core for broad chemical compatibility
  • Depth-loading gradient structure for long service life
  • Low initial differential pressure and stable performance
  • Suitable for potable water, chemicals, and general industrial liquids

Available Options

Micron Ratings Lengths End Style Core Cover
1, 5, 10, 25, 50, 100 µm 9.75", 10", 20", 30", 40" DOE (Double Open End) None

Technical Specifications

Parameter Value
Media (Fiber) Polypropylene (FDA grade)
Core Material Polypropylene
Outside Diameter 2.5"
Inside Diameter (typical) 1.0"
Maximum Operating Temperature 140 °F (60 °C)
Recommended Change-Out Differential Pressure 20 psid (1.4 bar)
Compatibility Excellent with most acids, alkalis, and organic solvents; not recommended for strong oxidizers or high-temperature service

Applications

  • Process water and RO prefiltration
  • Chemicals, plating solutions, and solvents compatible with polypropylene
  • Food and beverage utility water and ingredient filtration
  • Paints, inks, and coatings prefiltration
  • General industrial fluids and cooling water

Selection Guidance

  • Choose the coarsest micron rating that meets product quality to maximize service life.
  • Use 9.75" or 10" for standard 10" housings, and 20", 30", or 40" for multi-round or high-capacity systems.
  • Confirm chemical compatibility and temperature limits for the process fluid.

Ordering Information

Model example: CFS-SW-PP-10-10-D

Field Code Description
Series SW String Wound
Media PP Polypropylene
Micron 10 1, 5, 10, 25, 50, 100 µm
Length 10 9.75, 10, 20, 30, 40 (inches)
End Style D DOE (Double Open End)

Notes

  • Cartridges are free of binders and adhesives; media and core are thermally bonded.
  • For fluids above 140 °F or with oxidizers, contact us for alternative media or core materials.
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