Materials of Manufacture
| Filter media: | Polypropylene |
| Support layers: | Polypropylene |
| Inner core: | Polypropylene |
| Outer support: | Polypropylene |
| End fittings: | Polypropylene |
| Support ring: | Stainless steel |
Gaskets and O-Rings
Ethylene Propylene, PTFE encapsulated, Silicone, Nitrile or Polypropylene felt.
Maximum Differential Pressure
| Normal flow direction at: | |
| 20°C (68°F): | 6.0 bar (87lb/in2) |
| 80°C (176°F): | 4.0 bar (58lb/in2) |
| 100°C (212°F): | 3.0 bar (43lb/in2) |
| 120°C (248°F): | 2.0 bar (29lb/in2) |
| 125°C (248°F): | 1.5 bar (29lb/in2) |
| Reverse flow direction at: | |
| 20°C (68°F): | 2.1 bar (30lb/in2) |
| 80°C (176°F): | 1.0 bar (15lb/in2) |
| 100°C (212°F): | 0.5 bar (7lb/in2) |
Operating Temperature
Maximum continuous: 80°C (176°F)
Integrity Testing
Polyfil™ II filter cartridges are batch tested for integrity using the Bubble Point Test. Procedural details are available from Porvair.
Effective Filtration Area
Up to 0.6m2 per 250mm module (depending on pore rating).
Applications
- Pharmaceuticals and Bioprocessing
The batch preparation of intermediates used in the manufacture of pharmaceutical and bioprocessed products. Used as prefilters to extend the life of membrane filters. - Foods and Beverages
The clarification of beers, wines and spirits to a clear and bright finish without affecting taste or colour. - Inks and coatings
For removal of agglomerates and gels with minimal loss of product. - Fine Chemicals
- Process Water Systems
- Suitable for steam and hot water sanitisation
Polyfil™ cartridges are resistant to repeat steam sterilisation up to 135°C (275°F) and hot water cycles at up to 90°C (194°F). - Cosmetics
Clean Water Flow Rates
- Typical clean water flow rate:
A 254mm (10”) Polyfil™ II single cartridge exhibits the flow-ΔP characteristics indicated below, for solutions with a viscosity of 1 centipoise.
