HydrophobicPolyvinylidene (PVDF) Membrane Disc Filter
Main Features:
Membrane stack consists of reinforced-type PVDF membrane
Possess superior properties of heat- resistance and chemical-resistance
It can ensure wet air and other gas pass through smoothly, even when the
differential pressure is very low. But the water liquid cant permeate
It holds the opposite capability against hydrophilic membrane
Specifications & Technical data:
Material Polyvinylidene (PVDF)
Absorption 0.2µm membrane absorption capability: 8µg/cm2 γ-globulin
Bubble Point (Isopropanol) 0.2µm120kPa 1.0µm45kPa
0.45µm80kPa 3.0µm20kPa
Chemical Compatibility Strong resistance against all organic solvent and strong chemicals
Extractables with water None detectable
Flow Rate Material Air Isopropanol
Pressure Δp5kPa Δp100kPa
3µm 1.1/H/M2 -
1.0µm 0.90/H/M2 -
0.45µm 0.70/H/M2 17-23ml/min/cm2
0.2µm 0.24/H/M2 9-12ml/min/cm2
Sterilization Methods Autoclaving (121°C or 134°C) or Epoxy Ethane Sufforcating
Thickness 100µm (±10µm)
Applicable Fields:Filtration for air, gas and hydrophobic chemicals
PTFE membrane possesses extremely strong chemical compatibility
It can filter most of the organic solvents and strong corrosive chemicals
If hydrophobic PTFE membrane is used to filter hydrophilic liquid, please soak the membrane into ethanol or isopropanol liquor beforehand so the hydrophilic liquid.

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Glass Fiber Pre Filter
Main Features:
High flow rates
High dirt holding capacity
Wide chemical compatibility
Biologically inert
Specifications & Technical data:
Material Glass Micro Fiber
Micron size 1.5 and 2 µ
Size (OD) (in mm) 13, 25, 47, 127, 142, 279 and 293
Pack size 1 Box = 100 Pcs
Appliction Glass fiber disc filters are ideal pre-filters for membrane disc filters. They are used for prefiltration of a wide variety of solvents & solutions to remove colloidal particles so that membrane disc filters are protected, resulting in higher throughput at lower cost.
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