Air compressor fittings
 

Hi:

I am very confused about these fittings,confused: I thought there are only two different types: automotive and industrial but it seems I have a third or even fourth kind in my pile! (beside being male or female)
Would you ID the fittings in the picture for me?
Also, does the color of the fittings and/or quick connect means anything? I believe they come in gold/brass and silver?
Thanks

Re: Air compressor fittings
 

The one with the red on it is the most popular to my area and are know as the type d . I use them because nearly everyone keeps the couplers and fittings in stock (Even walmart)

Re: Air compressor fittings
 

I have both red & yellow ones. I have to swap fittings on occasion. Some day I'll inventory what I need and start over with one type. Leaky fittings drive me crazy so I'd be up for some advice in purchasing new ones.

Re: Air compressor fittings
 

I believe most (if not all) of mine are also the red ones. I usually keep a few extras in the toolbox because they do wear out and leak air.
Drives me bonkers when I'm working on something and there's an air leak near by.
Don't really have any advise as both the male and female ends I've had wear out. Brass or steel, didn't seem to matter. Did pick up a couple Prevost female ends off the MAC truck, they are quite nice and a few around the shop are 5+ years old. http://www.amazon.com/Prevost-PVOIRC061201-Regular...

Re: Air compressor fittings
 

I believe the red one is the "industry" one and the yellow one is the "automotive". I just don't know what the other two are.
I am thinking to just go all "industry" one with universal quick connects to get rid of my confusion.

Re: Air compressor fittings
 

That was my choice, and like powerdriver 1958 mentioned, available everywhere. Auto stores, box lumber yards, Wal-mart, really wouldn't surprise me if 7-11 had some... ok, might be a stretch, but you get the idea.

Re: Air compressor fittings
 

This should help...https://miltonindustries.com/uploads...alog_Pg_35.pdf

I use Milton "M" style, The red one in the pic.

Re: Air compressor fittings
 

There are "universal" couplers that will accept both the industrial and automotive fittings. Lowes carries them, among other places.

I put the universal couplers on all my hoses and compressor, so no matter what end the hose or tool has, it will connect. Makes it a lot easier than trying to swap fittings on a tool you borrowed, or fumbling through your toolbox looking for the right one.

Re: Air compressor fittings
 

Thanks for posting that handy little link!

Re: Air compressor fittings
 

Very helpful. Thanks,

Re: Air compressor fittings
 

I use the yellow one on the left at work with push button quick release chucks. They dont leak a bit!!

Re: Air compressor fittings
 

Type d from here is the milton m lol

Re: Air compressor fittings
 

Usually the leaky couplers are caused by the rubber gasket in the female part of the coupler being worn. I used to know a guy that called on tire shops selling weights, stems, and also sold repair gaskets for those couplers. He also said you could take the couplers apart and turn the gasket over and get more life out of them.

Re: Air compressor fittings
 

Um, I would have to disagree. Most of the failures, air leaks, that I have seen, come from damaged internals, not a gasket. I have not seen a method to take them apart, and why bother, they are inexpensive.
The universal female connectors do fail faster, but definitely easier to use with any male fitting.

Re: Air compressor fittings
 

So you have never taken one apart? You know that that stuff inside there was put in there some how. I agree that most people just replace them for a few dollars but a repair gasket is only a few cents and if you simply flip the gasket over and use the side that is not worn then it is a free fix. If you have a shop with dozens of couplings it could add up over time. Besides some people prefer to fix rather than replace. The internals you speak of include a rubber gasket.

Re: Air compressor fittings
 

That would be nice if you could post some pictures and instruction as to how to take these fitting apart and flip the gasket. Money is one thing and the joy of "fixing" is another thing.