Clean room penetration plugs
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The airborne contamination level of a cleanroom is largely dependent on the particle . particulate air (HEPA) and ultra-low penetration air (ULPA) filters are the Fan-filter units typically consist of a centrifugal plug fan driven by a fractional.
For cleanroom technology, Fuji Electric started development of cleanroom equipment at .. Preventing penetration of chemicals and particles. Concept catalog.
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Description:Don't underestimate the importance of uniform airflow! Many FFUs that appear to meet nominal cleanliness requirements fail to provide this uniformity, threatening the integrity of your clean processes. What is airflow uniformity? Certifiers measure air velocity at multiple typically six or eight locations across a filter face. For example, in an ISO 5 laminar flow system with a specified minimum average air velocity of 90 fpm feet per minute , the minimum air speed measurements typically should be in the range of 80 — fpm. Discrepancies greater than this create turbulence as the faster air streams lamina are drawn into the localized areas of lower pressure created by the slower ones.