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Can-filter

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The challenge

Activated carbon filters are used in a host of filtration and purification processes. The Netherlands-based company Can-Filters BV, an industry leader in the field of activated carbon filtration, has specialized in the design, development and production of activated carbon filters for over twenty years. The company was examining the possibilities of launching a lighter, less expensive and more ergonomic Can-filter product on the market.

The solution

The metal Can-filters consist of two coaxial cylinders with extremely fine perforations, between which a filling of activated carbon is packed through which an unobstructed flow of air passes. By executing the new Can-filter in plastic, both cost price and weight could be drastically reduced. An innovative, patented gripping system was developed, allowing for easier installation, in particular when working above head height. Moreover, the new filters are highly energy efficient, due to the improved airflow resistance, which translates into a 30% lower pressure drop across the filter.

People Creating Value

The cylindrical housing parts were injection molded in two halves. The two cylinders were divided into two matched 180-degree half shells and joined together via snap connections. The new filter is refillable, which means that replacement with a new filter is no longer necessary once the saturation level of the activated carbon has been reached. Assembly of the filter units has also been simplified: an easily mounted closed-cell foam seal ensures that no carbon leakage can occur.The new plastic Can-filter was introduced on the market six months previously, and is doing well. The filters are currently available in sizes varying from 25 to 80 cm; other sizes are expected to follow soon.
 

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