Coupler plugs

bossed · Aug 17, 2013

Hey guys, I need some help. I bought a push to connect quick coupler 1/4, to use with my Rapidair setup. It's actually a Rapidair part I bought from Northern Tool yesterday, while out of town shopping. I didn't get a coupler plug to go with it cause I had some at home. Well, they are too short and won't lock in, do they make different length plugs? I went to Harbor Freight and Lowes and the ones they carry are like the ones I have? Please help :eyecrazy:

Bossed

NUTTSGT · Aug 17, 2013

There's a few different types of Quick-Connect. Generally only about two are common. . . "M" and "T" I believe. Somebody else will chime in. . . .

https://miltonindustries.com/COUPLER-PLUG_ID_CHART.html

stonesfan68 · Aug 17, 2013

There are two types of quick connects: automotive and industrial. You have to pick on or the other because the two systems are not interchangeable.

OccupantRJ · Aug 17, 2013

stonesfan68 said:
There are two types of quick connects: automotive and industrial. You have to pick on or the other because the two systems are not interchangeable.

There are way more than two types. Look at page 37 of the Milton pdf, and there are more than those.

https://miltonindustries.com/uploads/Milton_Catalog_August_2011.pdf

bossed · Aug 17, 2013

I'm know of the different styles, and the push to connect coupler I bought says "use with industrial style plug". The end looks correct, it just isn't long enough to lock in, the nut bottoms out before it can reach the lock, and the ones I found at HF and Lowes are the same way.

Bossed

OccupantRJ · Aug 17, 2013

Page 48 of the pdf that I referenced has an interchange chart, if that might help.

bossed · Aug 17, 2013

RJ, thank you for trying to help, I really appreciate it. I looked at the chart and I even searched for the part number M-style for the push connect type, but I'm not sure if I can tell a difference in it, and what I have. If they are different, it isn't much, you'd think there would be an obvious difference. It seems like this sort of thing always happens to me

. By the way, where at in eastern NC? I am too
Bossed

larry_g · Aug 17, 2013

Can you post up a link to the Rapid air coupler you bought or at least the part number of it? Like RJ said there are many styles out there.

lg
no neat sig line

bossed · Aug 17, 2013

I tried Rapidair's website and Northern Tool and as luck would have it, nothing comes up. I'll try to upload a picture of the package.

Charles (in GA) · Aug 17, 2013

A and D are nearly identical and easily mistaken for one another (one is Industrial, the other is the "short lincoln). C is the one known as Automotive. The long one is a long Lincoln, and is rarely found nowdays.

Stick with ones described as Automotive or Industrial. Home Depot sells a universal coupler that accepts all three of the short ones.

Charles

HTGTS350 · Aug 18, 2013

Don't you guys have Nitto fittings over there? Nitto are much higher flow than any others pictured.

mds5951 · Aug 18, 2013

This may sounds kinda stupid, but are you holding back the "collar" so to say while you are jamming the other end in?

I've had a friend have a hell of a time using the push to connect (no need to hold back the collar) on all of mine because he was used to the traditional, hold back collar, jam in other end, release collar, let go method.

bossed · Aug 18, 2013

mds5951 said:
This may sounds kinda stupid, but are you holding back the "collar" so to say while you are jamming the other end in?

I've had a friend have a hell of a time using the push to connect (no need to hold back the collar) on all of mine because he was used to the traditional, hold back collar, jam in other end, release collar, let go method.

No, the problem I'm having is, the end that you push in to connect, bottoms out on the nut before reaching the lock. :willy_nil

bossed · Aug 18, 2013

I also bought two of the push to connect type that have the button release, and they work with the plugs I have. When I compare them, the depth of the balls or locking area, is not as deep on the button release style, as they are on the Rapidair coupler.

pattenp · Aug 18, 2013

This is a shot in the dark but I have a Airlift for vacuuming out cooling systems and it has a small quick couple on it and the plug-in fitting looks like this....

http://www.overnitesupply.com/os-35...gwitha38passageanda18nptfemalepipethread.aspx

larry_g · Aug 18, 2013

I think your going to have to take it back and have the store match it up with the proper plug or get a refund. I too could find nothing in the rapidair information on that p/n. They don't even show a push to connect coupler.

lg
no neat sig line

pattenp · Aug 18, 2013

What's the number stamped on the coupling? Is it a different # than the RapidAir part #?

bossed · Aug 18, 2013

The push to connect coupler is actually a Dixon series D, that's what's stamped on the part.

OccupantRJ · Aug 18, 2013

bossed said:
RJ, thank you for trying to help, I really appreciate it. I looked at the chart and I even searched for the part number M-style for the push connect type, but I'm not sure if I can tell a difference in it, and what I have. If they are different, it isn't much, you'd think there would be an obvious difference. It seems like this sort of thing always happens to me . By the way, where at in eastern NC? I am too
Bossed

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pattenp · Aug 18, 2013

There's your answer. You need a Dixon series D tip.

http://www.hfifluidpowerproducts.com/dixon-couplers.html

bossed said:
The push to connect coupler is actually a Dixon series D, that's what's stamped on the part.

OccupantRJ · Aug 21, 2013

Applied Industrial Technologies carries Dixon products.

Coupler plugs

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