Reply by Manitario

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Posted on Clear Vue EF5 dust collector input

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2816 posts in 3737 days

#1 posted 12-06-2018 07:21 PM

I have a CV1800. I’ve had it for 8 years in 3 different shops. Works well, have very little dust in the filter clean out (typically only vacuum out once a year). The air quality in my shop is better than my house at least in particle count.
Here’s some data from today:
40×25ft shop
Longest run to 2×4” ports on router table (52ft): 536 CFM
Shortest run to 6” port on mitre saw hood (12ft): 1014 CFM

With these larger DC, it may not be needed as you can pull a lot of cfm with the 4” port. With my 5 hp DC and 4” port, I am getting 670 cfm and enough to do a very good job. Would a 6” port do more? Of course, but would not make a difference in dust collection.

- Redoak49

This is incorrect. Yes, it does make a huge difference whether you have a 6” or a 4” port. Eg. I have 2×4” ports on my TS. Two 4” ports ~ 5.66” diameter pipe. With both ports open, CFM is 536. With one 4” port open, CFM is 95. So, it’s incorrect to think that we can all have 4” ports and make up for it with a larger DC.

As for the new EF5; I imagine that it would give better overall CFM at higher static pressures, simply based on the larger impeller from the CV1800. However, at the added cost of having to install 8” mains…

-- Sometimes the creative process requires foul language. -- Charles Neil

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