Re: Dust Collection Intake Port Size Question

Aug 27, 2003 4 Replies

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Edwin Pawlowski 22 years ago

I am thinking about getting the Grizzley 1029 DC. It has one 6 inch

> intake with a wye connector that splits it down to two 4 inch intakes.
> Is it advisable to use a 6 inch to 4 inch reducer if you plan to use
> only one intake path? If not, should a blast gate be installed at the
> wye so one intake can be cut off?

I'm not sure of your question. You want to run a 6" main trunk line and then reduce to 4" at the DC? If so, no. You want to remove the y and run

6" all the way.

If you reduce from 6 to 4 you will have a severe reduction in velocity. Ed

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Steve Knight 22 years ago

better if you can to use 6" pipe/hose to the tool. you will get far better flow.

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Paul Andersen 22 years ago

I would use either a blast gate or a cap on the unused 4" intake, that way you can add on later, if needed, without having to make changes to the existing pipes.

Woodchip

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Bob G 22 years ago

My older Griz 1029 used a 5 in opening that branched off into 4 in wyes... Odered a new plate which has a 6 inch opening from which I intend to run a 6 inch trunk and 45 degree 6 to 4 inch reducers at each machine connected to my old 4 in blast gates...then 4 inch hose to the tool itself

Wanted the 6 inch main trunk ....

Bob Griffiths

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bbonner 22 years ago

Paul Andersen wrote: : I would use either a blast gate or a cap on the unused 4" intake, that : way you can add on later, if needed, without having to make changes to : the existing pipes.

Unless it's been changed in the last 2 years, the 1029 has a 5" intake and I'm fairly certain the 5-to-dual-4 Y that came with it also

*included* a cap for one of the 4". If you're using 4" flex hose this is a perfectly adequate solution.

If you're running pipe, I'd take off the Y. My DC pipe is 4" schedule-40 PVC; conveniently, 5" flex hose fits nicely around the outside of this (with a 5" clamp to draw it tight), so the final connection to my 1029 is a short length of 5" flex. Works great.

The 1029 is a good machine. I've been quite happy with mine.

-Brett

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