Air Hose Couplers

[T.Hadley]

What type do you use?


I use the first style here, the second one seems to come with alot of things but I have found them all to leak.

Recognized by the extremely short pilot. Has the widest metal section between the ball groove and the pilot. The sealing surface on the end of the ****** is wider than other interchanges, resulting in better sealing and longer seal life. Intended for compressed air lines only. 300 PSI maximum rated working pressure

****** design is considered the industrial standard. Identified by the 3/16" pilot and flat bottom V-shaped ball groove. Intended for compressed air lines only. 300 PSI maximum rated pressure.

 

[Torque1st]

I have never had leakage problems but the seals do wear out. I use the second unit.

There was a thread here a while back with all kinds of info on couplers.

 

[ZRX61]

I use the first kind (T style) at home & the place I work uses the second type (M style). I have adaptors that work when using home tools at work.
I also use the V style (hy flow) on my spray guns & dedicated air hoses.

I also try to stick with Milton brand. Horrible Fright couplers are absolute ****.

 

[LGMechanical]

I have all "M" type couplers at the moment. But I am switching them all to "a" type from Milton as soon as my order comes in.

 

[crewchief888]

all mine are the 2nd pic.
over the years ive bought tons of couplers, both male and female.
i seem to damage them before they ever wear out. ive been buying them from HD the last few years

 

[rodnok1]

Which couplers can you drop from 8 feet and roll over and the still work, can't count how many I've ruined way before they can go bad. The HF one's are total ****, but I use them anyways...

 

[Phuckin' Jim]

The one pictured in the second pic are type M, and are what I use. They are the cheapest, easiest to get, and the most common. Many of the female couplers have replaceable O-rings, buy 'em in quantity and replace as needed to fix leaks.
Also, couplers will last longer if you install "whip" hoses on your impact tools.

 

[Phuckin' Jim]

Which couplers can you drop from 8 feet and roll over and the still work, can't count how many I've ruined way before they can go bad. The HF one's are total ****, but I use them anyways...

You can get the steel version of any of the female couplers from an industrail supply store. They take way more abuse and cost about the same as the brass.
Keep them out of the water though, they rust easily!

 

[Shadowdog500]

I've been using the A style Milton 777 for years. They are easy to connect and release, and I cant ever recall having a problem with one.

I think people wind up using the connectors from the shop where they work. Seems like allot of people use the HF connector.

Chris

 

[Vinko]

I recently posted a thread about some of my new goodies:

http://www.garagejournal.com/forum/showthread.php?t=50948&highlight=cejn

a little cut and paste:

Parker air hose, made in USA, 3/8 ID and 11/16 OD:

1/4" NPT end w/ferrule - stainless steel.

CEJN 310 series couplers, high-flow, regular and safety. Made in Sweden.

CEJN 430 v. 310 ******, both industrial interchange:

 

[ZRX61]

Related note:
I have a Goodyear hose that should say "Risk of BURSTING above *** psi" instead it says risk of BURNING....

It hasn't spontaneously combusted yet....

 

[Ryland]

Related note:
I have a Goodyear hose that should say "Risk of BURSTING above *** psi" instead it says risk of BURNING....

It hasn't spontaneously combusted yet....

I better check my goodyear hose. I wouldn't want my addition to burn down from it

 

[stricht8]

Where does one buy Milton couplers besides a tool truck?

 

[speed bump]

Where does one buy Milton couplers besides a tool truck?

Napa, Grainger, almost any industrial supply place.

I use the one in the first picture, around here its the easiest to get and I rarely am somewhere that something else is used.

 

[Dan0myte]

As far as I understand it:

Milton M-style are the cheapest and most common with consumer-grade tools. Highest chance of leaking.

Milton G-style are for flow-critical applications like sandblasters when the least restriction is required.

Milton L-style have the lowest chance of leaking and are used in most mechanics shops.

Milton A, T and P styles are meant for compatibility to old air compressor company standards from the 1960's and back. They're usually more leak resistant than cheap M-style couplers.

 

[GeorgiaHybrid]

Where does one buy Milton couplers besides a tool truck?

If you have a local Northern Tool, they also stock Milton std fittings as well as the hi-flow "V" style fittings.

 

[stricht8]

No local northern tool for me. Wonder if grainger sells them.

 

[Rigmaster]

this is very helpful (to me anyway);

https://www.miltonindustries.com/uploads/Page_36.pdf

 

[rsanter]

I use the same ones you use

bob

 

[ChappyEight]

Just picked up 4 of these Milton M-Style couplers the other day. Hadn't ever seen them before but they're great (albeit a bit more expensive).

 

[Torque1st]

this is very helpful (to me anyway);

https://www.miltonindustries.com/uploads/Page_36.pdf

Very good info! It debunks a lot of myths surrounding air fittings that are passed around.