Piping Layout

[Don01]

I'm one of these pokey guys who had to retire to get enough time to do everything in the job jar. I have had my CV since early 2007, just now getting out of the box.
My shop is 14 X 26 X 10 ceiling. The best physical location is to place the CV mid point along the 26 ft walll in the garage. The separating wall is 6". This would mean installing a 6" 45 Y right after coming through the wall.
I have read some comment where users have made sure to have a 6-7 foot straight run into the intake chute. There is no discussion of this in the installation document (that I can find), so I would like to know the pros and cons to this.
I am a one man shop so I would think that being able to run 2 shorter main lines would offset any gains from this extended intake length.
I can rearrange my garage to mount the CV so it enters the shop from one corner.

thanks

Don Burch
Fort Saskatchewan, Alberta

[<<<__ Bøb __>>>]

I can't remember my source for this, and I'm not really sure it is a strong recommendation/requirement, or just a suggestion for better performance, but it's my understanding that you should have a straight run equal to 10 times the intake pipe diameter before adding any angled fittings. 6" pipe = 60" straight run out of the cyclone.

That said, I couldn't do that on my own personal 1800 install, and it works just fine. Would it be better or "ideal" if I followed that guideline ?? Who knows .. who cares ?? It sucks up everyting that gets near it.

[boninc]

Bob,

I have the same question regarding the length of pipe at the cyclone intake. Bill Pentz's suggests, "for maximum efficiency, particularly with a cyclone, you want a straight run for at least 4' or longer going into your inlet. This keeps the incoming air very smooth making for far better material separation and improved efficiency as turbulence kills efficiency". Since this makes my installation more difficult I am considering alternatives. How long did your pipe end up?

Thanks,

Chuck

[<<<__ Bøb __>>>]

I'll get up in the attic and double check, but I think mine is only about 24" long.

I just checked my unit, and it's WORSE than I remembered. There is a 22.5 deg. and a 45 deg. fitting right at the intake .. no straight run at all .. I did this out of necessity in order to get the unit to fit in it's allocated space. I know it's not optimal, but who cares ?? This thing will suck the chrome off of a hitch ball.

[Don01]

"This thing will suck the chrome off of a hitch ball."
Well now that I have all of this 6" pipe & fittings laying beside the 4" stuff I have used for the past 2-3 years, I think you are probably right. There is going to be a lot of air moving through this system.

I can easily provide the 4 - 6 ft ramp except for the Y that will feed my bandsaw. I have to drop down as soon as I get through the wall less than 2 ft from the intake chute. Otherwise, the route most of the dust will follow will have a 14 ft straight run, passing through 2 Y's.
Looking at all of the installations in the gallery, I would say that the 5ft straight run recommended by Bill Pentz is seldom adhered to.

Don