PTFE Membranes

Recommended for filtration and sterilisation of aggressive organic and inorganic solvents and samples and for venting.

 

  • Made entirely of PTFE (polytetrafluorethylene), reinforced by a Polypropylene net.
  • Permanently hydrophobic.
  • Maximum temperature 145ºC.
  • Allowing passage of air even at low differential pressure.
  • Resistant to almost all chemicals, very strong acids, cryoliquids, alkalis, aggressive organic solvents.
  • Pore sizes 0.2 μm and 0.45 μm.
  • Filter diameters 47 mm.

 

 

 

Technical data:

Membrane: PTFE

Pore [μm] Thickness* [μm] Flow rate** [ml/min] Bubble point*** [bar]
0,2 160 >6 1.0
0,45 160 >30 0.6
5 180 >90 0.1

* Acc. DIN 53105 · ** Acc. DIN 58355, average value per cm² area at Δp = 0.9 bar · *** Acc. DIN 58355, for isopropanol

Part number Pore size Diameter Quantity per box
PT02025BL 0,2 μm 25 mm 100
PT02047BL 0,2 μm 47 mm 100
PT04525BL 0,45 μm 25 mm 100
PT04547BL 0,45 μm 47 mm 100
PT50047BL 5 μm 47 mm 100
PT50090BL 5 μm 90 mm 100

 

Other pore sizes, diameters, design and pack sizes are available on request.