Products Information

Poreflon® Module


Using PTFE which is high in chemical resistance , heat resistance and durability, we have developed aporous separation membrane making the best of our unique processing techniques and produced POREFLON Module as a membrane module for a water treatment system.

Features & Benefits

1.High flow rate! (Immersion / external pressure Types)

With a high porosity(percentage of void) between 75 and 85% ,resistance during penetration can be reduced, demonstrating a high permeability.
In addition, a double-layer PTFE (Polytetrafluoroethylene) structure consisting of a skin layer (filtration) and support layer offers superior resistance to fouling.
Cross section structure of membrane.

High flow rate!

2.Comparison of flow rate (pure water)

Comparison of flow rate

Hydrophilic treatment allows easy transportation and installation (Immersion / External pressure type)
As PTFE (Polytetrafluoroethylene) hollow fiber is subjected tohydrophilic treatment by means of hydrophilic macromolecule fixation, this product can be transported in dry condition. Moreover, hydrophilic property will be kept throughout dry storage after use : therefore there is no problem if you let water run through this this product when it is reused.

3.In comparison with other organic membranes, it is higher in strength, contributing to prolonged operation.

<comparision of hollow fiber strength (nominal pore size: 0.45)>

Tenisile strength
Membrane thickness
Membrane external diameter
Membrane internal diameter
PTFE membrane
Other organic membrane

4.Membranes can be cleaned with various chemicals and exhibit high flow recovery.

PTFE' s superior resistance to chemicals allows cleaning with high-concentration alkali and other chemicals.
<change after immersion in caustic soda, which is effective in washing off oil and silica>
(Immersion conditions: NaOH 4% ×10 days)

Tensile strength (N/fiber)
Adhesive strength (N/fiber)
Before soaking
After soaking
Before soaking
After soaking
PTFE membrane
> 60
> 60
Hydrophilic property is kept

Measurement procedure
Tensile strength (hollow fiber): Measure breaking strength of a sample 100mm in length using a tensile tester.
Adhesive strength (sealed area): Fix the sealed area and pull the hollow fiber upward for measurement Using a tensile tester.

Line-up and Application
1.External Dead-End style(OPMW)

Recommended application
①Industrial waste waster treatment
②Treatment of Waste water including non-aqueous oil
③Water purification system(Water supply)
2.Submerge type(SPMW)

Recommended application
①Membrane Bioreactor(MBR)
②Treatment of Waste water of high suspended solution
③Water purification system combined with powder activated carbon and manganese catalyst for the raw water including high soluble manganese and
high TOC
3.Internal cross-flow type

Recommended application
①Removal of particles from high concentration suspended
sulution  Removal of bacteria from Fermentation solution
②Treatment of Waste water including High concentration
non-aqueous oil  Reclaim of used cleaning chemicals

Standard Specification List (all filtration membranes are made of PTFE)


  • ※Poreflon™ Module and related technical information can be restricted items of Export Trade Control Order. When exporting, if they are restricted items, please have necessary formalities of Export Declaration as your responsibility
  • ※Please contact as follows because the quality can change on a part of chemicals.
  • ※ When burning PTFE (Polytetrafluoroethylene), acid gas will be produced. Please do not burn it at any cases. The data in this catalogue is a typical value.
    The data in this catalogue is a typical value, and general characteristics are described about features and benefits, thus it is not guarantees safety for each type of use. To make sure the safety, you absolutely need to evaluate the conformity yourself. Upon use, we do not have obligation to incidental and indirect accident. Please understand this. The contents of this website is based on materials, information and data available now, thus they can be revised by new knowledge.
Srvice Desk

Please contact us for details.

Functional Fluororesin,Sales Dept (Osaka)

Contact Us

Page top