The fan curve posted is something I did to show the difference in performance between the CV-1800 and CV-Max cyclone bodies when all were tested powered by the same CV-Max blower with its 16” diameter impeller. This test shows airflow with both 6” and an 8” diameter main test pipes. I do see that there is an error on this graph where the CV-1800 with larger blower is shifted by a data point. Probably my error when I copied all the columns to create the graph. There has been so much abuse I don’t share fan curves.
We should buy a cyclone based on how well it separates and a blower based on it moving enough air against our overhead resistance known as static pressure. My Clear Vue marketed cyclone provides six times better fine dust separation than its nearest competitor. We now have over 10,000 users of this cyclone worldwide and all agree that with these Clear Vue cyclones they spend a lot less time cleaning filters, can use much finer filters, and filters last years instead of months.
Decades of research shows good fine dust collection requires 1000 CFM at each small shop stationary tool. With typical static pressure overhead we need a 15” diameter impeller. It draws less than 4 hp so with a choice of 3 hp or 5 hp motors I chose a 5 hp. Wanting to use the extra hp on that motor I came up with a 16” impeller size which is what is used in the max. Many, including me use Max blowers with 16” diameter impellers with their CV-1800 cyclones.
bill