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Reply by MJCD

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Posted on Cyclone confusion

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MJCD

598 posts in 2879 days


#1 posted 08-17-2019 02:18 AM

I can’t directly answer your question… However, I do have a few questions…

A 4” for your main run is far too small (a statement, not a question). A 6” will provide 36/16 = 2.25x the air flow capacity, and can be supported by a 2hp motor… Delta sold a 1.5hp version, with a 6” inlet, for years, and is probably still doing this – I had one for many years.

My recommendation is to get the specs on both Oneida and Clearvue systems, and reverse engineer what you need. That is, both Oneida and Clearvue sell commercial-grade, well-engineered systems (and they charge you for it). Their specs on cyclone inlet diameter, cyclone length and CFM should be available on their websites or on downloadable documentation – though, Clearvue had horrible documentation, the last time I checked. Delta, Grizzly, and the others in this category may provide specs on their equipment, as well.

For example, the Clearvue system has two impeller options – 15” and 16” (last time I looked), so the housing must be approximately 18” in diameter. The cone is probably 3’ long, and tapers to approximately 6”-8”: that is, approximately 18” tapering to 8” over a 3’ length – again, this information should be ascertainable from close review of their website/documentation information.

A final recommendation is a 6” main run, with 4” drops to the machines; or if possible, replace the machine connections with 6” orifices; otherwise, the 4” runs will choke the CFM throughput.


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