Hydrofil™ Plus

Dual Nylon 6.6 Layer Membrane Cartridge Filters

The Porvair Filtration Group Hydrofil™ Plus microbial rated cartridge has been developed and manufactured for the filtration of liquids in the pharmaceutical, biotechnology and other critical applications. Hydrofil™ Plus utilises a naturally hydrophilic Nylon 6.6 membrane with a mirrored asymmetric pore structure. The cartridge’s unique built in prefiltration membrane layer provides longer life and higher throughput.

Features and Benefits

  • Guaranteed microbial ratings
    Hydrofil™ Plus cartridges are validated for bacterial removal according to HIMA guidelines and ASTM F838-05, with a log reduction value >7. They are therefore suitable for applications requiring sterilising grade filtration.e suitable for applications requiring sterilising grade filtration.
  • Excellent chemical compatibility
  • Cartridge integrity and low TOC levels
    Each Hydrofil™ Plus module of every cartridge is individually integrity tested. Each complete filter cartridge is flushed with pure water which is inspected daily for pyrogens using the standard LAL test. When required, they can be pulse flushed with 18MΩ.cm pyrogen-free ultra-clean water.
  • Suitable for steam sterilising
  • Full traceability
  • Controlled manufacturing environment

Materials of Manufacture

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

Gaskets and O-Rings

FDA approved Ethylene Propylene, PTFE encapsulated, Silicone or Nitrile.

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)


In situ steam 30 x 25 minute cycles at 125°C (257°F).

Effective Filtration Area

Absolute Microbial Rating Effective Filtration Area (each 254mm (10") module)
0.2μm 0.5m2 (5.38ft2)


Hydrofil™ Plus cartridges are suitable for the sub-micronic filtration of a wide range of process liquids, in applications where the characteristics of a naturally hydrophilic membrane are required.

  • Biopharmaceuticals
    For the sterilisation of biological fluids, cell culture media, sera and blood fractionations.
  • Fermentation
    For providing sterile feed stock for the production of antibiotics and enzymes.
  • API's
  • LVP's
    For final filtration of Total Nutritional Fluids, dextrose, amino acids and saline solutions.
  • Beverages
  • Pure water supply

Clean Water Flow Rates


RR Retention Rating
MT Maximum temperature recommended of a working product in degrees centigrade
MoC Primary material of construction
MoC Primary material of construction
MP Maximum working pressure of housing in bar
Brand Manufacturing brand name supplying the product
FE Filter efficiency
Q Quality assurances and certificates validating this product