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Click Here To Download:
•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

Click Here To Download:
•Datasheet: HDC II Gas Filter Cartridges