Hydrophilic PTFE Membrane Filter

Filter Media: hydrophilic PTFE membrane
Pore Size: 0.22μm, 0.45μm
Diameter: 13mm, 25mm, 47mm, 90mm, 142mm, 293mm

Availability: In Stock


Description of Hydrophilic PTFE Membrane Filter

Hydrophilic PTFE membrane filter bubble points are above or equal 0.1MPa and 0.06MPa respectively, pore size is 0.22μm, 0.45μm and with diameters ranging from 13mm, 25mm, 47mm to 90mm, 142mm, 293mm. With its filter media as hydrophilic PTFE, it can help users reduce costs by eliminating the need for expensive pre-wetting in applications that require superior temperature, chemical resistance, and low extractors of PTFE membrane.

PTFE membrane chemical compatibilities are superior to aqueous, organic solvents, and mixed solvents. The strongest membrane filter for strong acids, alcohol, and so on. Hawach has a full range of membrane filters, diameters, and pore sizes that can be customized, OEM services are available as well.


Hawach membrane filters have been approved by ISO9001 to ensure high quality. The vacuum membrane filter 0.45 μm, 0.22 μm is manufactured in 100,000 class cleaning rooms with various sizes, pore sizes, and diameters available in supply for different applications. We also provide OEM service.

0.45um ptfe membrane filter

Features of Hydrophilic PTFE Membrane Filter

  • Highest tolerance;
  • Hydrophilic applications, compatible with all common solvent;
  • Vacuum membrane filter 0.22 μm, 0.45 μm have excellent chemical stability and particle retention;
  • The lowest level of IC extractable, optimizing background level insensitive IC analyses;
  • High flow rate and low protein binding capacity;
  • All types are available(roll type or round disc type).


  • Total drug analysis;
  • Aqueous solubility testing;
  • Natural product screening;
  • Filtration of a strong acid, base, and corrosive solvent;
  • HPLC and other mixtures of aqueous and organic solvents.

A hydrophilic PTFE membrane filter is usually used with water and aqueous solutions. Used for liquid filtration to achieve sterility, wide chemical applicability, strong acid, and alkali resistance, and high ozone strength.

PTFE membrane hydrophilic can also be used with compatible non-aqueous fluids. Vacuum membrane filter 0.45 μm, 0.22 μm is usually not used for air, gas, or exhaust filtration because if they get wet accidentally, for example through condensation, the filter will block the flow. The hydrophobic PTFE membrane filter disc is modified to obtain a hydrophilic PTFE membrane, which can be suitable for filtering aqueous solutions and organic solutions, and has better chemical resistance.

Technical Data of Hydrophilic Membrane Filter

Filter MediaHydrophilic PTFE
Pore Size0.22 μm, 0.45 μm
Diameter13mm, 25mm, 47mm, 90mm, 142mm, 293mm
Bubble Point≧0.13MPa (0.22 μm)≧0.07MPa (0.45 μm)
Flow Rate@23 °C, H2O≥ 6 mL/min/cm2@1bar (0.22 μm)≥ 30 mL/min/cm2@1 bar (0.45 μm)
Thickness150 – 250μm
pH Range1 – 14
Chemical compatibilityResistant to almost all chemicals
Maximum Operating Pressure4.2 bar@23 °C1.5 bar@85 °C

Scanning Electron Microscope Picture


Ordering Information of PTFE Membrane Hydrophilic

Item CodePore Size(μm)Diameter(mm)Quantity/pk
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