Pall Corporation (PLL): Filtration, Separations, Purification & Environmental Technology
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Fibrous Media Manufacturing

The Pall Advantage           
Pall manufactures media using the widest range of technologies in the industry.  To provide you with the optimal material solution, we carefully select the best manufacturing technology  and material for your specific application.  We hold patents on materials, and continue to explore patent coverage for new materials that demonstrate unique functionality.

Choosing Pall as your materials development partner can help you:

  • expand capabilities
  • reduce development time
  • save money
  • increase profitability
  • deliver enhanced product performance


Pallflex® wetlaid fibrous
media

 

Fibrous Media Manufacturing Technology
State-of-the-art equipment and statistical process control techniques ensure our customers fibrous media of the highest quality.  Our distinguished fibrous materials portfolio includes multiple polymer offerings with excellent permeabilities, and media with wide porosity ranges produced using meltblown, wetlaid, airlaid, and other technologies.

Meltblown process
Pall's method of fiberizing, protected as a trade secret, produces continuously graded flat sheet and depth media.  We fiberize a variety of polymers to produce our meltblown media, and we offer several porosities and support materials configurations within each polymer type.

Wetlaid process
With a wide variety of fibers and resins available, and the capability to blend them into hundreds of combinations, we can produce filter media with unique performance characteristics.

Airlaid process
Our airlaid process produces highly uniform metallic depth media for use in aggressive environments.  Using our proprietary high-temperature sintering process, we can produce highly durable media with a specific efficiency rating and permeability, ensuring superior performance and extended service life in a variety of aggressive applications.

Fibrous Media
The key benefits of Pall's fibrous media are as follows.

Meltblown
  • Pore sizes ranging from 200 µm down to 0.3 µm.
  • Void volumes of 40%-95%.
  • Continuous and multiple fiber medium for ultraclean downstream fluids/gases and nonfiber shedding performance.
Wetlaid
  • Pore sizes ranging from 50 µm down to 0.1 µm.
  • Excellent air flow, chemical resistance, and thermal characteristics.
  • High dirt-holding capacity for long service life.
Airlaid
  • Micron efficiency ratings of 80 µm down to 3 µm in liquids, with high permeability.
  • Wide selection of metal alloys and advanced alloys.