POREX® Tubular Membrane Filter Module™

Material Technology

POREX Tubular Membrane Modules contain the unique, patent-pending, structural membrane tubes. The superior strength of the membrane / substrate composite allows higher operating and backwash pressures for higher flux and reduced system footprint. The structural composite membrane features PVDF membrane bonded to PVDF substrate or anchored to PE substrate.

Each POREX Tubular Membrane Module contains multiple tubular membranes. These structural membrane tubes are made from a PE or PVDF sintered porous substrate that creates an intricate network of open-celled, omni-directional pores. These substrate pores are then filled with membrane which gives our tubes an innovative combination of filtering capability and structural strength. The microphotographs below illustrate the unique bond between the membrane and the substrate.

Structural Membrane Technology

Integral homogenous membrane/substrate

  • No membrane delamination
  • Same polymers
  • Uniform chemical and temperature resistance

Phase inversion process

  • Membrane fused to substrate

Tough uniform membrane composite

  • Optimized assembly
  • Improved yield
  • Surface scratches will not destroy overall structural integrity

Higher pressure resistance

  • Increased flux
  • Reduced system size
  • Improved
    • backpulse efficiency

Chemical Resistance

POREX Porous Plastics are made from commercially-available thermoplastics that are resistant to a broad spectrum of corrosive chemicals and reagents. The customer should perform appropriate tests to determine the performance of POREX Porous Plastics under each specific operating condition.

For more information see our Chemical Compatibility Chart.

Learn more about Microfiltration and Ultrafiltration

Chemical Compatibility Chart (PDF)

Microfiltration and Ultrafiltration (PDF)