How many sizes does 4" come in?

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Bapakleo

New User
Leo
Trying to put together a minimal dust collection system (tools to adapter to hose to adapter to dust collector) has become frustrating. Any suggestions from positive experiences would be greatly welcomed. I had thought that in a 4" system a male part would be 4" outside diameter and the female parts 4" inside diameter. Foolish me. So far I have found: 1) Oneida metal adapters generally work well with each other. though occasionally a LITTLE tight fit. Unfortunately I need the flexibility of a hose and not metal piping. 2) Woodcraft plastic adapters are not the size stated, threaded adapters thread opposite to the way needed in a plastic hose bought from Woodcraft. 3) The adapter on my Saw Stop table saw is small enough that true 4" hose adapters fall off. 4) Every hose I've bought is too small to fit any of the adapters I bought. I must be doing something terribly wrong or making some idiot assumptions. Again, would appreciate some help.
 

jazzflute

Kevin
Corporate Member
Adapters from Peachtree Woodworking seem to thread the opposite way of other adapters, which means that they actually work with most flex hose out there, and most plastic adapters are a bit "liberal" in their sizing. Been there, done that. Acquiring a good assortment of large ring gear clamps—found in the plumbing section of your local Home Depot, where they oh-so-logically belong; EVERYONE uses 4" diameter ring gear clamps for plumbing, right?—is the best hint that I can give you.

K
 

JohnW

New User
John
Duct Tape?..Duck Tape? I use both.

Only support I can offer is....Been there done that. Missery loves company?

Hold loose fitting hose on with clamp and tape. Use Dremel with sanding drum to encourge the tight 4" fitting to fit a 4" fitting.
 
Again, would appreciate some help.


I understand your pain I am still having that pain.... the first hose I bought was made by woodstock supply and it was the 4" and 2 1/2" inch that is all rubber and plastic with now metal wire in it.... I thought it would be best at the time... I still have mixed feeling towards it and have not worked with metal wire hose yet but I am not longer afraid of the metal wire......

my problem came when I also learned that I had to cut short pieces of the hose to connect between the connectors that I also thought would pop together FIRST LESSON short pieces of hose to go between the connectors

second problem was buying Keyed Bridged Hose Clamps from rocker and then finding out that they did not fit the direction of the spiral that the the Woodstock hose spiraled Lesson Two clamps that do not work with hose

http://www.rockler.com/4-keyed-bridge-hose-clamps

so yea I have resorted to masking tape at times to temporarily hold things together...

I need to by more 4" hose and looked into the sewer and drain PVC that other have talked about to run my main tubing.... so in other words maybe others will chime in and help cause I totally feel you pain
 

bluedawg76

New User
Sam
my only suggestion for loose fittings such as the hose to the TS is to wrap a couple layers of blue tape around the dust port. generally this will increase the outer diameter so that the hose is a much more snug. ime, it works surprisingly well.
 

Pop Golden

New User
Pop
Here's a little goody for you. There is a difference in the outside diameter of white sewer & drain pipe and green sewer & drain pipe.
The green pipe fits plastic DC adapters & pipe a lot better. I had to trot down to my local Lowes with a plastic DC adapter to find this out.

Pop G.
 

buildintechie

New User
Jeff
I feel your pain.

I ended up kinda oversimplifying my system by eliminating my dedicated drops and coupled the expandable hose system from Rockler with the Dust Right Master system:

Expandable Hose: http://www.rockler.com/dust-rightreg-expandable-hose-expandable-hose
Master System: http://www.rockler.com/dust-right-master-system

I also purchased extra 4" connection ports for connecting to my table saw, planer, etc: http://www.rockler.com/dust-right-quick-connect-4-hose-port and http://www.rockler.com/dust-right-4-quick-release-starter-kit
and 2" connection ports for my miter saw, etc. : http://www.rockler.com/dust-right-2-5-tool-port
And this handy sucker for my router table: http://www.rockler.com/dust-right-router-table-dual-port


All in all it works well for me. I don't know how large your shop is, but I could imagine even a medium sized shop could use a couple of the expandable hoses.

Hope this helps.
 

Bapakleo

New User
Leo
Jeff, at least from my perspective, I do think you may be oversimplifying or missing a little. The question is, when someone tells you an item measures 4", should it be 4"? If not, should they change the stated size? Or, if the item has an acceptable size variance, and should that acceptable variance be noted for the customer?

It would be good if when 4" inch is specified each supplier would tell you what size their 4" item really is.

It would also be good if when a single supplier uses various sizes, all labeled 4", they would inform their customers of those differences.







QUOTE=Jeff;462785]Not been there and done that so maybe I have pain in my future. It's convoluted to buy individual components from 3 or 4 different suppliers and then hope for a mix and match solution. ???

Am I oversimplifying this and missing several key points?

http://www.thewoodwhisperer.com/videos/installing-nordfab-ductwork/

http://www.artofwoodshopdesign.com/dust-collection-ductwork-and-fittings-done-right/[/QUOTE]
 

Jeff

New User
Jeff
So it's 4" id or od with a specified tolerance of +/- so many fractional inches for the wall thickness. I'd suggest exploring these specs for various pipe sizes.

http://www.mcmaster.com/#48925k18/=pmggoi

You won't find the very specific information that you're looking for on the label. That's your homework to do.
 

Bapakleo

New User
Leo
It seems many of our responding members believe a "4 inch" item does not need to measure 4 inches. If 'caveat emptor' acceptably prevails, there is no need for this review and it may be time for the forum monitor to close the thread.
 

Jeff

New User
Jeff
It seems many of our responding members believe a "4 inch" item does not need to measure 4 inches. If 'caveat emptor' acceptably prevails, there is no need for this review and it may be time for the forum monitor to close the thread.

Leo,

Not being cantankerous or difficult, just trying to help and maybe reduce your pain. Yes, a size 4 PVC pipe is an industry designation but that doesn't mean that it's 4" id or od. This link may help to demystify some of the mumbo-jumbo industry jargon. Buying the various components from a single manufacturer is probably your safest bet to ensure that pipe A truly fits adapter B and flex hose C.

http://www.mcmaster.com/#plastic-pipe-fittings/=pms945
 

thsb

New User
Tim
i can't tell you how many different types of 4" fittings i haVe in my DC SYSTEM. at 5-12.00 for each piece it got frustrating quickly. i wish i had paid the extra money for an all inclusive system that i hear is available.
 

Pop Golden

New User
Pop
Thinking of the old story about the debate over the number of teeth in a horse's mouth. The so called wise ones were very upset when sombody said let's count them. A lot of the problem can be solved in a very stright foward way. You will note my statement about green sewer pipe fitting standard DC pipe. How do I know this? I took a section of DC pipe to Lowes and tried it out on various pipe. The green & white sewer & drain are 2 different sizes. Guess what the #40 pipe is a completly different size.

Pop G.
 
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