I am assembling the Pentz cyclone which I bought as a kit from Clarke Echols.
The inlet to the cyclone from the collection duct is a sheet metal transition of about 24 inches, round on one end, square on the other to fit into the cyclone. That 24" inlet protrudes out considerably from the rest of the cyclone, and is giving me a problem as to how to route my PVC duct. I want to keep the duct as close to the the walls as possible, and I want that to occur on two adjacent walls. The cyclone would be in the corner with a duct branch going along the north wall, and another branch going along the east wall.
What I thought about is replacing the long inlet shoot with a short transition with a total length of 8 to 10 inches. This would provide me with more room to, in turn, put a pants-leg wye on the end of the transition followed by one or more 45s, etc. The actual implementation of the duct work is still under consideration.
With this drive-by background, the question boils down to this:
How critical is the the 24" cyclone inlet shoot, can it be shortened without making a major impact on the efficiency of the cyclone?
I have looked through Bill's site and didn't find anything about the shoot length, I probably over looked it
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