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Biofil™ Junior

Polyethersulphone membrane cartridge filters for small-scale applications.

Materials of Manufacture

Filter membrane:Polyethersulphone
Membrane support:Polypropylene
Irrigation mesh (support):Polypropylene
Drainage layer:Polypropylene
Inner core:Polypropylene
Outer support:Polypropylene
End fittings:Polypropylene
Support ring:Stainless steel

Cartridge Dimensions (Nominal)

Diameter:70mm (2.8″)
Length:77.5mm (2.5”)
136mm (5”)

Product Attributes

Gaskets and O-Rings

J-style:Silicone (other materials are available on request).
S-style:Not supplied.

Maximum Differential Pressure

Normal flow direction at:
20°C (68°F):6.0bar (87psi)
80°C (176°F):4.0bar (58psi)
100°C (212°F):3.0bar (43psi)
120°C (248°F):2.0bar (29psi)

Operating Temperature

Maximum continuous: 60°C (140°F)

Effective Filtration Area

Absolute Microbial RatingEffective Filtration Area (for each 5″ cartridge)
0.04, 0.1, 0.2, 0.45, 0.65 and 1.2μm0.19m2 (2.05ft2)


  • Small-scale biopharmaceuticals
  • Electronics and semiconductors
  • Pilot-scale studies
  • Opthalmic solutions
  • Small-scale fine chemicals
  • Point-of-use water supply

Clean Water Flow Rates



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