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Powder and Bulk Engineering
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Powder and Bulk Engineering is a technical publication devoted to readers in the bulk solids market, worldwide.
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Item Details:
Publication Date: 10/2013
Pages: 3
Medium:
PDF Format
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$7.50
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Beyond precoating: Upgrading to premium-grade cartridge filter media

This article looks at how switching to cartridge filters with a premium-grade, high-performance media can not only overcome the limitations of precoating lower-performance cartridge filters but provide the same benefits.

In precoating (also called seeding), a porous layer of particles is intentionally loaded onto the media in new filter elements to improve their filtration efficiency or extend the filter life. Applying the precoating is a simple process: After installing new filters in a dust collector, the dust collector fan is operated at low volume to draw a precoating material (typically agricultural lime or diatomaceous earth) into the collector and onto the filters. Once the collector's differential pressure gauge indicates that the pressure drop has increased by 1 inch water gauge, the filters are precoated and ready for dust collection.

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