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Looking for a 5 inch DC hose port

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Forum topic by MT_Stringer posted 521 days ago 806 views 0 times favorited 22 replies Add to Favorites Watch
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MT_Stringer

1807 posts in 1836 days


521 days ago

Topic tags/keywords: question

I want to replace the dual 4 inch hose port that came with my 2HP Harbor Freight dust collector. It will make for a straight run from my chip separator into the inlet of the blower.

The problem is I need an adapter that is 5 inches ID on one end to fit over the machine port (like the dual port does now) and 4 inch OD on the other end to accept a 4 inch hose. No luck so far. I bought one from Rockler – didn’t fit. :-(

If you are confused, check out my installation.

Your thought and advice appreciated.
Thanks
Mike

-- Handcrafted by Mike Henderson - Channelview, Texas


22 replies so far

View nwbusa's profile

nwbusa

1016 posts in 892 days


#1 posted 521 days ago

Hmmm…. the adaptors I’ve seen are all sized at ID, so that a hose of the appropriate size will fit over them. Any possibility of using a short piece of 5” hose from the machine to the adaptor?

-- John, BC, Canada

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MT_Stringer

1807 posts in 1836 days


#2 posted 521 days ago

The outlet from the chip separator is 4 inches (Rockler kit). I haven’t found any 5 inch hose but I may order some when I order the filter from Wynn.

-- Handcrafted by Mike Henderson - Channelview, Texas

View nwbusa's profile

nwbusa

1016 posts in 892 days


#3 posted 521 days ago

View JesseTutt's profile

JesseTutt

796 posts in 716 days


#4 posted 521 days ago

how about making a wooden donut with an ID to fit over the 4” port and an OD that will just fit a piece of 5” hose?

-- Jesse, Saint Louis, Missouri

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MT_Stringer

1807 posts in 1836 days


#5 posted 521 days ago

“how about making a wooden donut with an ID to fit over the 4” port and an OD that will just fit a piece of 5” hose?”

It’s beginning to look like that is my only choice.

-- Handcrafted by Mike Henderson - Channelview, Texas

View woodbutcherbynight's profile

woodbutcherbynight

1236 posts in 1014 days


#6 posted 521 days ago

Exactly my thought.. Why bother with ordering one when you have what you need to make one. I replaced a warped plastic cut off on my blast gate last week with some time, scrap wood Bearpaw gave me, and some attention to detail. Works great, now I have the sudden urge to do them all the same way. So many projects so little time….. (laughing)

A second thought would be to look in the plumbing department, never know what might fit.

-- Live to tell the stories, they sound better that way.

View Fred Hargis's profile

Fred Hargis

1656 posts in 1099 days


#7 posted 521 days ago

If you run a 5” hose to a 4” port, you may as well stay with 4” hose. That said, you can make a 5” port on the blower by cutting a plywood circle that replaces the plate. Then fasten a 5” HVAC starter coller on it.

-- I long for the days when Coke was a cola, and a joint was a bad place to be (Merle Haggard)

View MarcusM's profile

MarcusM

36 posts in 1586 days


#8 posted 521 days ago

Mike, if I understand you correctly, the port on your DC is a 5” and you want to reduce it to a single 4”? If so, they make an HVAC 5” female to 4” male reducer that is readily available.

Regards, Mark

-- Tilbilly Mark

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Fred Hargis

1656 posts in 1099 days


#9 posted 521 days ago

After reading what Mark said, I reread the original post and now see the light (I think). What Mark suggested would be the easiest.

-- I long for the days when Coke was a cola, and a joint was a bad place to be (Merle Haggard)

View JesseTutt's profile

JesseTutt

796 posts in 716 days


#10 posted 521 days ago

Fred, I thought that the rule was to always run the bigger size pipe as far as possable and then reduce to the size of the fitting.

-- Jesse, Saint Louis, Missouri

View Fred Hargis's profile

Fred Hargis

1656 posts in 1099 days


#11 posted 521 days ago

A better rule is to upsize all the ports to the size of the ducting. That’s not always possible, so generally running the larger pipe as far as possible before reducing is considered the way to do it. But when you have a 4” prt, you can move maybe 400 CFM of air. Fill that 400 CFM with chips, and let it enter a 6” pipe, and the speed slows, maybe enough to drop the chips out of the airstream and cause a clog. In general, you want to avoid doing that.

-- I long for the days when Coke was a cola, and a joint was a bad place to be (Merle Haggard)

View needshave's profile

needshave

150 posts in 565 days


#12 posted 521 days ago

Take a look at Fernco Flexible couplings. They are rubber couplings that come in a variety of different sizes and designed to adapt to a variety of different sizes. They can be found in some big box stores but all major plumbing houses. They are designed for plumbing applications so they fit very well and seal really well.

I have two on my system, without any problems. I’m sure they have a web site.

View ldl's profile

ldl

1135 posts in 971 days


#13 posted 521 days ago

I would turn a sleeve with a lip that the 5” hose would go inside then screw sleeve to separator and seal the 5” hose to inside of sleeve. That way no turbulence with a thicker sleeve land.

-- Dewayne in Bainbridge, Ga. - - No one can make you mad. Only you decide when you get mad - -

View MT_Stringer's profile

MT_Stringer

1807 posts in 1836 days


#14 posted 521 days ago

”Mike, if I understand you correctly, the port on your DC is a 5” and you want to reduce it to a single 4”? If so, they make an HVAC 5” female to 4” male reducer that is readily available.”

That sounds like what I am looking for.

”Take a look at Fernco Flexible couplings”

I found what I think would fit perfectly at this company. Now if only I can find it locally.

Thanks for all of your replies and suggestions. I have 4 inch hose or PVC (Sewer and Drain) piped up to a manifold that connects my table saw, router table and an open ended port with a blast gate. The four inch goes into the plastic drum. From there it is connected to the suction of the blower. That’s where the problem lies. The dual suction ports are 4 inchers (for hose connection and the blower housing is a 5 inch OD.

I will check the big box stores again for the rubber coupling and maybe check with a local HVAC supplier. Last time I was there, they didn’t have much.

My projects are piling up.
Thanks again.
Mike

-- Handcrafted by Mike Henderson - Channelview, Texas

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needshave

150 posts in 565 days


#15 posted 521 days ago

MT…I get my fernco’s at the regional plumbing supply house. They carry a vast inventory. Plumbers will be more prone to have it than HVAC. Hope it works for you.

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