DNN Filter Cartridges are inherently hydrophilic Nylon 66 membrane. They’re specifically designed for use during final filtration, pre- filtration, or bio-burden reduction for pharmaceutical and biological liquids. A modified Nylon 66 membrane with positive-charged zeta particles is also available. It can provide enhanced retention for fine particles smaller than the filter rating such as endotoxins.

Features and Benefits
Intrincically water wettable
Enhanced removal of endotoxins by positive zeta potential
Higher bubble point assures a more reliable retention efficiency
Low pressure drop
100% integrity test
High flow rate
Long service life

Typical Applications
Buffer solutions
WFI
LVP & antibiotics

Flow rate characteristics

Materials of Construction
Filter media: hydrophillic N66 membrane
Support layer: Polypropylene
Core: Polypropylene
Cage/End caps: Polypropylene
O-ring: Refer to ordering information

Operation conditions
Max. operation temperature: 80℃
Max. differential pressure: 4 bar/21℃，2.1 bar/80℃
Steam sterilization: (autoclave) 121℃/30 min

Integrity testing
Bubble point (0.22μm): ≥2800 mbar, water, @23℃
Diffusion flow (0.45μm): ≥2000 mbar, water, @23℃

Food and biological safety
Extractables <30mg per 10 inch
Endotoxins <0.25 EU/ml

Ordering information