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Prefilter Family Disc Filter(PP)

Product Introduction

Polypropylene (PP) membrane is suitable for depth filtration with stable physical and chemical properties and strong pressure resistance. Alioth prefilters are made of PP with high porosity and strong dirt-holding capacity. The filters are ideal for removing particles and microorganisms from a broad range of challenging pharmaceutical liquids in prefiltration process.


Product Properties

  • Wide chemical capability
  • High retention efficiency, fast flow and low flow differential pressure
  • High thermal stability: compatible with multiple times of steam-in-place and autoclave sterilization
  • No fiber releasing
  • Robust with stable performance
  • Pore size: 0.1 μm / 0.2 μm / 0.45 μm / 1.0 μm / 3.0 μm / 5.0 μm / 10.0 μm / 20.0 μm / 50.0 μm
  • Flexible options in filter format and specs: Cartridge, Capsule and Disc
  • Traceable with unique code on each filter


Typical Applications

  • Pre-filtration of process liquid
  • Pre-filtration of blood products
  • Pre-filtration of cell culture media
  • Pre-filtration during solution preparation


Product Characteristics

Nominal Dimensions 64 mm
Filtration Area 19.5 cm2
Pore Size 0.1 μm / 0.2 μm / 0.45 μm / 1.0 μm / 3.0 μm / 5.0 μm / 10.0 μm / 20.0 μm / 50.0 μm
Connection Type HB 7-13 mm
Materials of Construction

Filter membrane: Polypropylene (PP)

Housing: Polypropylene (PP)

Highest Working Temperature 60°C
Max Inlet Pressure 50 psi @ 25°C
Sterilization Device integrity was maintained after 3 wet autoclave cycles of 60 min @ 126°C
Max Differential Pressure Forward: 4.0 bar @ 25°C, 1.0 bar @ 60°C, Not applicable for Reverse Filtration
Endotoxin < 0.25 EU/mL
TOC / Conductivity TOC < 0.5 mg/L, Conductivity < 1.3 μS/cm
Non-fiber Releasing No detectable fibers or other visible foreign matters
Biological Safety All components comply with the requirements for bio-safety of Class VI plastics in USP <88>
Quality System Manufactured in a facility whose Quality Management System has been certified with ISO 9001
Shelf Life 3 Years

Ordering Information


For further information, please contact us and Alioth technical team will provide a comprehensive service for your filtration process.