Filtration Table of Contents | Filter Supplier

Cylindrical filters may be either open-faced cylindrical axial or radial flow. Filters fabricated with cylindrical cases appear to offer substantial advantages such as easier mounting in circular ducts, but in practice they have been found to have disadvantages attributable to manufacturing difficulties, escalated costs, and increased susceptibility to leakage. However, cylindrical filters offer significant advantages regarding simplified gasketing and automated filter-changing techniques. In the United Kingdom, a push-through filter system has been developed that permits changing of cylindrical filters by loading a clean filter that has gaskets on the top and bottom filter flanges into the filter housing tube from the clean side, then pushing it through until it ejects the old contaminated filter into the dirty side of a cell or glove-box. A cylindrical filter of somewhat different design, but with similar characteristics, has been developed in the United States.

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