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Quick connects for 5 and 6 inch ducting

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Forum topic by jay443 posted 01-02-2017 03:08 AM 636 views 0 times favorited 16 replies Add to Favorites Watch
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jay443

16 posts in 640 days


01-02-2017 03:08 AM

So I’ve learned from Penz’s website that I need to be running 5 or 6 inch hoses at a minimum for my dust collection system. The problem is that I really like my Rockler Dust Right quick-connect handle and tool ports. Is there anything similar that would make it easier to use 5/6 inch ports? My shop is in my garage and mobile, so I hook one tool up at a time. As such, I have to connect/disconnect the DC quite a bit.

Thanks!


16 replies so far

View papadan's profile

papadan

3584 posts in 3207 days


#1 posted 01-02-2017 03:20 AM

There is nothing wrong with a 4” dust collection system. 4” will work just fine for a home shop with 1 or 2 machines at a time.

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jay443

16 posts in 640 days


#2 posted 01-02-2017 03:46 AM

I thought that the reduced CFM from running 4” was a bad thing. Bill’s website made it sound like I could only pull 350 cfm with my 1.5 HP Harbor Freight DC. I do use a 3M mask and vent outside, but I assumed that I should be increasing the cfm as much as possible. Thanks.

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papadan

3584 posts in 3207 days


#3 posted 01-02-2017 04:08 AM

Don’t over think it, your DC will work just fine with a 4” hose. The “experts” will tell you, that you don’t need to ground your DC also, Safety first is what’s right!

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papadan

3584 posts in 3207 days


#4 posted 01-02-2017 04:19 AM

Jay, I don’t know about your 1.5hp DC but the HF 1 hp states 660 cfm on 4” hose and the 2hp says 1550 cfm with 4”hose connection. I guess your 1.5hp should have around 1,000 cfm with 4” hose, not 350.

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Carloz

981 posts in 430 days


#5 posted 01-02-2017 07:24 AM

Did you know that all websites out there ( with the exception of lj of course)were created to
A: take money from you directly
B: direct you to sites of type A.
Show your middle finger to the 5” expert. 4” on any home style dc works as good as 5”

View DirtyMike's profile

DirtyMike

637 posts in 741 days


#6 posted 01-02-2017 08:29 AM

4’’ is perfect for you Hf dust collector, People that say you need to ground you DC probably believe that magnets are the devil.

View Redoak49's profile

Redoak49

2904 posts in 1827 days


#7 posted 01-02-2017 12:21 PM

I think you are fine with 4” duct.

BTW…the numbers stated by HF are over rated. You will be lucky to get half of that. I really wish someone would do some actual measurements on the HF.

View rwe2156's profile

rwe2156

2716 posts in 1319 days


#8 posted 01-02-2017 03:16 PM

If you are collecting an individual machines 4” flex is fine.

However with ducts 4” will definitely decrease performance (sorry DM have to disagree). I can tell you this from experience when I remodelled my shop I went from 4”—>6”.

I use the blower from a Jet 1100 (1 1/2HP) and 6” PVC ducts. It is vented outside. I thought I would have to get a bigger blower but to my surprise the system works fine eve with a cyclone. My TS is 25’ away and it works great.

I strongly suggest you look into a cyclone just from the standpoint of disposing of shavings its worth it. Also look into a better filtration than the bag it comes with.

I think a DC with poor filtration is worse than no DC at all because its spewing fine particles all over shop and into your lungs.

-- Everything is a prototype thats why its one of a kind!!

View brtech's profile

brtech

1006 posts in 2761 days


#9 posted 01-02-2017 03:23 PM

To my knowledge, no one has suggested Pentz isn’t right, what they argue about is mostly “is it worth it to be safe”?
Pentz makes some money through Clearview and ads on the site, but read the site and see if you can find factual errors. You can also buy or borrow a manometer and see how many CFM you are actually getting. If you have 800 -1000 CFM at the tool, you are good to go. If you have 700, you probably are getting the fines, and may be accumulating chips in the bends. If you measure the typical 300-400 CFM that most systems actually deliver, then wear your respirator and clean your ducts often.

To get good chip clearance AND fines clearance, you need to have 6” pipe all the way to larger machines. It’s not hard to find PVC pipe sections that are designed to fit together end to end. Cut off the ends and you can make a quick disconnect.

Anyone who says you are fine with 4” is certainly free to express an opinion, but isn’t dealing with facts, at least as far as I know. When in doubt, measure.

If you wear a mask, and all you have is a 10’ length of 4” flex, and an HF DC, then you are safe, can have a clean shop, aren’t in much danger of setting off a fire/explosion, and haven’t spent much money. The key there is “wear a mask”; it’s dangerous to not wear a high quality dust mask all the time while you are in your shop. If you aren’t wearing a mask, then you really do need to pay attention to Pentz I think. I think you should upgrade the filter on the HF DC to the Wynn .5 micron canister filter. It will significantly increase the dust collected in the DC. Not enough, but a whole lot. Also a good idea to install an air cleaner with a good .5 micron filter. That will help you avoid getting the bad stuff in the rest of your house.

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Carloz

981 posts in 430 days


#10 posted 01-02-2017 03:57 PM



I think you are fine with 4” duct.

BTW…the numbers stated by HF are over rated. You will be lucky to get half of that. I really wish someone would do some actual measurements on the HF.

- Redoak49


So if you did not measure it and do not know if someone did real measurement of the HF dust collector how do you know that it is twice overrated ?

View jay443's profile

jay443

16 posts in 640 days


#11 posted 01-02-2017 04:12 PM

I appreciate everyone’s advice. The reason I had wanted to go up to 5 inches at least is because my HF DC has the 5’’ intake that has a “Y” with two 4’’ connections. Since I never run more than one at a time, my thinking was that I could boost my cfm to any of my machines by getting rid of the Y, then running some 5’’ clear flex hose to my machines (after upgrading the tool ports.) I’m not sure if that technique will work because I have been having trouble finding 5’’ rigid pvc pipe and fittings to make the upgrade tool ports.

I will probably never feel comfortable working without a mask. I do have a Dylos that I’ve been using to monitor dust. My next project will be do build the air cleaner on Bill’s website using an 8’’ inline blower and a Wynn 9500 nano filter. That way, even though I don’t collect all of the fine dust, at least the air cleaner can run in the shop and bring the levels down before they get into the house.

View papadan's profile

papadan

3584 posts in 3207 days


#12 posted 01-02-2017 04:52 PM



4 is perfect for you Hf dust collector, People that say you need to ground you DC probably believe that magnets are the devil.

- DirtyMike


Manufacturers of DCs say to ground their systems, but please don’t Mike, you would look nice roasted in a dust explosion. Gotta love the site of burnt asshole!

View Redoak49's profile

Redoak49

2904 posts in 1827 days


#13 posted 01-02-2017 05:16 PM

If anyone is interested, Wood Magazine published dust collector test results in the March 2008 issue.

They tested a 2 hp Central Macinery (Harbor Freight). The max air flow was about 640 cfm at 2.4” SP.

The max static pressure was about 7” at about 225 cfm.

The impeller size on the Harbor Freight is 10” based on a search I just did.

Comments from the Pentz website says you need at least a 14” impeller and 3 hp to get 1000 cfm.

It appears to be very common for mfg to overstate the dust collector performance. I tested my dust collector and found it was about 10% lower than the mfg performance curve
I believe this answers the question about how I know it is twice over rated.

I think one needs to understand the capability of their equipment. The HF dust collector is an economical solution for many and there are many happy with it.

View 06066's profile

06066

3 posts in 349 days


#14 posted 01-03-2017 04:00 AM

Mr Pentz as I remember had an allergic reaction to sawdust which led to his research on Dust collection.
When I was looking for a system I did some research also and used a lot of information from his site along with some other books from Fine Woodworking.
At the time I wanted a system I couldn’t afford to shell out the cash to buy one, he offered a kit and even plans to make your own components based on the research he did. I did it piecemeal buying his components over time. I think the whole system cost about $600. Then he sold the concept/business and it became Clearview where they had to make money, and the prices skyrocketed.
I was impressed at the time that he was very free with his research about dust collection and what was needed to be safe. It seems to me that his system was based on what you should do for the optimum protection forget what the cost would be. He was not really making much money and he spent a lot of time finding out the best system he could devise.
So maybe you will never ( hopefully) have an allergic reaction to sawdust. I never have but always tried to be smart about what I did in the shop (or anywhere else) to the best of my ability, even to the point of wearing hearing protection when it wasn’t popular 40 years ago. (Yeah I’m old).

Hey, my father in law smoked since he was 9 years of age and lived into his eighties anyway. Maybe you too may Never have a problem. Me, I prefer to learn from people who have gone through the worst of it so maybe I don’t have to.

-- Rule No1, dont bleed on the project.

View leftcoaster's profile

leftcoaster

189 posts in 715 days


#15 posted 01-10-2017 01:42 PM

I also would like to use the 6” inlet on my D.C. With 6” flex.

Has anyone found good 6” quick connects? This looks interesting but the female side is 4”?

https://www.pennstateind.com/mm5/merchant.mvc?Screen=SEARCH&q=quick+disconnect

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