Product/Service
HDC II Gas Filter Cartridges
•Datasheet: HDC II Gas Filter Cartridges
High Dirt Retention All-polypropylene Filters
Pall HDC II filters are constructed using a proprietary technique that varies the fiber diameter instanta¬neously and continuously to produce a pore-size distribution from coarse (upstream) to fine (downstream) while maintaining constant void-volume throughout the depth of the filter medium. This unique construction means that more contaminants are trapped in the outer and inner regions of the medium, thereby substan¬tially increasing the dirt-holding capacity and the service life of the filter.
HDC II AB style and MCY 1000 style filters are available in a range of removal ratings and in four nominal cartridge lengths: 10 in. (254 mm), 20 in. (508 mm), 30 in. (762 mm) and 40 in. (1016 mm). Their all-¬polypropylene construction makes them compatible with an extremely wide range of gaseous fluids. Car¬tridges are also available as P option which are optimized for pharmaceutical applications.
All materials of construction are FDA-listed and all components have been tested according to USP Class VI biological tests for plastics at 121 °C.
Features and Benefits
High Removal Efficiency
- 99.9998% efficiency at 0.3 µm for finest grade
Varied Fiber Diameter
- Extraordinarily high dirt-holding capacity
- Lowest cost per liter of filtered fluid
Fixed Pore Structure
- No solids unloading under variations in flow or pressure differential
- Fibers will not migrate or become dislodged and contaminate the process fluid
All-Polypropylene Construction
- Extremely good chemical compatibility with a wide range of gaseous fluids
- No surfactants
- Meets USP Biological Reactivity Tests (in vivo) in accordance with USP Class VII Plastics at 121°C
- Cartridge can be in situ steam-sterilized or autoclaved
- Media melt-sealed to endcaps without the use of binder resins
P Optimization for Pharmaceuticals
- Statistical testing of filter effluent for:
- particle and fiber counts
- endotoxins using LAL test
- pH shift test
- Total organic carbon and water conductivity tests
•Datasheet: HDC II Gas Filter Cartridges
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