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Air hose & fitting confusion, need advice

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Forum topic by Sark posted 06-13-2020 03:40 PM 436 views 0 times favorited 11 replies Add to Favorites Watch
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Sark

336 posts in 1237 days


06-13-2020 03:40 PM

Topic tags/keywords: air hose pneumatics quick connect

My current ancient air hoses are 3/8” inch with 1/4” quick connect fittings. I’m now ready to buy new air hoses and fittings. Mostly what I see on Amazon are 1/4” hoses and 1/4” quick connect fittings. It’s not clear to me if the 1/4” hoses have 3/8” threaded ends or if they have 1/4” threaded ends? Be really grateful if you can explain this to me.

So to slice through the confusion, I’d thought I ask you, what air hoses and quick-connect fittings do you recommend? I want quality hoses that lie flat, are flexible. I have one ultra-light hose that’s good for job-site, but not for shop work because it won’t lie flat. 1/4” hose is probably fine, since I’m not running air tools, or die grinders…just running pin nailer/stapler. As long as the hose lies flat, is flexible. But I don’t know what size of quick-connect (3/8” or 1/4”) to buy with the 1/4” hose.

And as far as quick-connect couplings go, if you can recommend a specific brand, I’m all ears.

Thanks for your help.


11 replies so far

View John Smith's profile

John Smith

2719 posts in 1039 days


#1 posted 06-13-2020 03:53 PM

Sark – it is not necessarily the “brand” of connectors that I go by,
it is the compatibility of all fittings that you get.
I have a problem of marrying some of my old stuff to new stuff and
some of the “tails” are longer than normal and don’t fit the new connectors.
so ensure they all fit before buying new. (as in the red box).
and if you buy them out of a “bin” like at the Box Stores, eyeball them
to ensure they are what you need.

.

-- there is no educational alternative to having a front row seat in the School of Hard Knocks. --

View ibewjon's profile

ibewjon

2052 posts in 3670 days


#2 posted 06-13-2020 04:03 PM

I just stick with Milton fittings, that is what I started with 40+ years ago. I use rubber hose, it is more flexible than some of the new materials.

View CaptainKlutz's profile

CaptainKlutz

3703 posts in 2371 days


#3 posted 06-13-2020 04:45 PM

The hose I have loaded in my 100ft hose reel is Goodyear Gorilla 3/8 rubber hose, the yellow stuff. Lays flat, and doesn’t kink. Good year makes several nitrile rubber hoses with same yellow cover. The Ortac stuff has same tough outer cover too. Current roll has lasted 12+ years used several times per week minimum. Have learned over years to trust only Good Year rubber hose in my shop. Have some hybrid flex stuff, and plastic coiled line for portable jobs and dedicated hanging line; but prefer handling the old fashion stuff better.

+1 Milton fittings

Recently had issues with getting enough CFM delivered with standard 1/4” fittings. Changed over to ‘V’ style and make world of difference. Impact wrench hits much harder. Sand blaster is dangerous now.
Not a fan of the Milton color ColorFit fittings as they are made of aluminum, and don’t tolerate being tossed around on concrete like steel versions. They work, look pretty for short time, but only last a couple years before the need replace for leaks. Nice part about ‘V’ style high flow receiver is can use regular 1/4 ‘M’ style plugs commonly sold at HF or BORG, that come standard on some tools. Some cheapest ones will leak a little, but only use them on rarely used tools. There

Best Luck.

-- If it wasn't for bad luck, I wouldn't have no luck at all, - Albert King - Born Under a Bad Sign released 1967

View WoodenDreams's profile

WoodenDreams

1155 posts in 788 days


#4 posted 06-13-2020 04:53 PM

If your only using air for brad nailing, stapling, air up a tire or blowing air, then a 1/4” rubber hose and 1/4” couplers is all you need. If you using impact guns then 3/8” hose with 1/4” couplers would be a minimum. The 3/8” line would help with air volume for power to the impact gun. There are several styles of coupler connections. The quick connect coupler to use is what’s readily available to you. and thread size have a universal standard in the industry. Good rubber hoses will be easier to use and lay flat on the floor verses the stiff plastic hoses. Look at the coupler to see if it’s easy to use. Most of the cheap couplers are difficult to grab to pull back to connect or disconnect the air plugs. Dill or Milton brands are good quality products.

View DaveMills's profile

DaveMills

47 posts in 276 days


#5 posted 06-13-2020 05:18 PM


My current ancient air hoses are 3/8” inch with 1/4” quick connect fittings. I’m now ready to buy new air hoses and fittings. Mostly what I see on Amazon are 1/4” hoses and 1/4” quick connect fittings. It’s not clear to me if the 1/4” hoses have 3/8” threaded ends or if they have 1/4” threaded ends? Be really grateful if you can explain this to me.

As far as I know, and someone will correct me I’m sure, both 3/8” HOSE and 1/4” HOSE will come with 1/4” NPT fittings on the end. Some will have 1/4” quick connect fittings already installed, but typically it’s a 1/4” brass male NPT threaded fitting on both ends. So you pick your favorite style of 1/4” quick connect fitting (Type T, Type M, Type V) and outfit your hose and tools with those as needed.

View tvrgeek's profile

tvrgeek

1054 posts in 2526 days


#6 posted 06-13-2020 06:36 PM

Some confusion here. There are two standard quick disconnect ends. Automotive and industrial. There are some universal ones. OOPS, just was looking at Milton. MANY MANY styles, Standards are great as there are so many to chose from!

I have heavy Goodyear hose, some no-kink ( my foot) yellow stuff and my favorite is now some thin clear green braided stuff from HF.

DO go for brass fittings as the cheap steel ones will rust. Cheap female ends will drive you crazy, though not sure much difference in male ends. Much thanks for the brand recommendation, Dill and Milton. I did not what was good, just the Home Despot or Horrible Fright were not it!

View ibewjon's profile

ibewjon

2052 posts in 3670 days


#7 posted 06-13-2020 11:44 PM

My female fittings are brass, but I only use steel makes because the brass ones don’t take kindly to being dropped on concrete.

View WoodenDreams's profile

WoodenDreams

1155 posts in 788 days


#8 posted 06-14-2020 12:59 AM

With the milton, Myers, and Dill brands I have not have any experience with rusting, But with regular use. Brass will wear quicker and ding up easier than the steel, besides the balls in the coupler are steel. I think people get the couplers with brass prefer the look of the brass. I have the basic cheap HF steel tubular style. I tried today to search for the type I used in the 70’ & 80’s but not able to find it. It had a 1/4” raised rib around the coupler, Very quick and easy to pull back the sleeve and slip onto the air plug. The problem with most current tubular coupling is the pulling the sleeve back to attach or unattach the air plug.

In the shops I’ve worked in back in the 70’s & 80’s had pneumatic wrenches had different air plug sizes, 1/4”, 3/8” and 1/2”. Each have there benefits to cfm power to the air wrenches. You can use reducers on each size hose. Nowadays when people use the 3/8 hoses, they almost always have the 1/4” fittings on them.

View gmc's profile

gmc

75 posts in 3033 days


#9 posted 06-14-2020 02:33 PM

There has been a lot of discussion on this topic for years. See if this article helps any, it really is up to you which direction you go. Pick one and stick with it, good luck I myself have several different kind due to years of investment.
https://toolguyd.com/quick-guide-to-air-line-couplers-plugs/

-- Gary, Central Illinois

View Woodknack's profile

Woodknack

13503 posts in 3257 days


#10 posted 06-14-2020 03:40 PM

Another +1 for Milton. I tried Chinese generics and they all had issues. For air hose I have the original that came with the compressor and a 50’ Hitachi polyurethane hose which is very light but doesn’t lay flat, it works for me. Guardair for air guns, they are very well made.

-- Rick M, http://thewoodknack.blogspot.com/

View GR8HUNTER's profile

GR8HUNTER

7896 posts in 1589 days


#11 posted 06-14-2020 04:00 PM

Milton is a GR8 USA company and they back up their products as i bought a air gauge that stopped working properly so i emailed them and they sent me a brand new one worth ever penny I paid :<)))

-- Tony---- Reinholds,Pa.------ REMEMBER TO ALWAYS HAVE FUN :<))

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