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Easy to insert air couplers?

tak1313

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Green dot = high flow (v style plugs). Blue dot = industrial plugs. No mixing and matching.
Ok, thanks. So either I'll go Milton 5 in 1 or swap out all my regular connectors to go Prevost (which I think will be more expensive than getting the 5in1).
 
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GeoBruin

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Ok, thanks. So either I'll go Milton 5 in 1 or swap out all my regular connectors to go Prevost (which I think will be more expensive than getting the 5in1).
Not as expensive as you might think. Here's a box of 10 Milton plugs for $14.

Milton Industries 760 1/4" MNPT HIGHFLOWPRO™ V-Style/European Interchange Brass Air Plug Fitting (High Volume Low Pressure Application) -Box of 10 https://www.amazon.com/dp/B003V5RPNQ?tag=atomicindus08-20

That said, the Prevost couplers are more spendy.
 

tak1313

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Not as expensive as you might think. Here's a box of 10 Milton plugs for $14.

Milton Industries 760 1/4" MNPT HIGHFLOWPRO™ V-Style/European Interchange Brass Air Plug Fitting (High Volume Low Pressure Application) -Box of 10 https://www.amazon.com/dp/B003V5RPNQ?tag=atomicindus08-20

That said, the Prevost couplers are more spendy.
Yeah, after looking at it more closely, if I switch, I'll likely go with Prevost - additional cost and all.

The Milton specifically states that they recommend against using it with impact tools, and there's a couple of reviews on Amazon that point the same way.

TO ME, although I have whip hoses on anything impact, this is a potential design/quality issue, as I note that they are made in China, and there is even another branded one that looks like the exact same product, but a couple of dollars less ($14 versus $16) from another no-name seller (same sourcing?).
 

whateg01

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The Milton specifically states that they recommend against using it with impact tools, and there's a couple of reviews on Amazon that point the same way.
I guess I don't see the logic. Isn't one point of using high flow couplers to take advantage of more air for impact tools?
 

dnschmidt

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I've been looking at the Prevost Green couplers for awhile now, but one thing I haven't been able to determine (though it's not like I've taken a deep dive) is if they can take high flow males AND the normal 1/4" industrial.

I currently have Milton couplers (the "older/regular" release type), and they accept both types with no problems. The Prevost is cheaper, but the new 5in1 can do all sorts of connectors (I only have a mix of regular and high flow industrial - no tru-flates, etc.).
No, they only do one or the other. Prevost does make couples for the Milton M but it's exclusively Milton M. The Euro style is Euro style ONLY.
 

dnschmidt

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I guess I don't see the logic. Isn't one point of using high flow couplers to take advantage of more air for impact tools?
Not originally. The high flow couplers were needed for SATA paint guns, which were, are and always will be air hogs. The Prevost doesn't care as it works fine with all air tools but when the Euro standard was first introduced the primary point was to be able to supply sufficient air to high end paint guns. A note: do not use the Milton Aluminum or Brass plugs with the Prevost coupler as it will chew them up. STEEL ONLY. J. B. Tools sells the Prevost High Flow steel Plugs for like $1.50@ so why cheap out.
 

tak1313

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I guess I don't see the logic. Isn't one point of using high flow couplers to take advantage of more air for impact tools?
I should clarify - Milton recommends against using it DIRECTLY CONNECTED to impact tools, and recommends the use of whip hoses. FOR ME, I have whip hoses on anything that is impact (wrenches, air hammers, etc.). One of the reviews on Amazon also stated it didn't work well with his impact wrench (it stopped flowing) - though it wasn't stated if it was with the use of a whip hose.

Seems TO ME that it may be indicative of design and/or construction quality issue, as other poor reviews, though not linking problems to direct usage with impact tools, indicate problems within a few months of use after an initial positive experience. Note that there are a LOT of positive reviews as well.

After looking at everything, I will likely go with Prevost since all indications are that they perform better/more reliably, and they have been at the easy connect/disconnect thing longer. I'll just have to swap the connector on the tools I have the standard connectors on.

Not as expensive as you might think. Here's a box of 10 Milton plugs for $14.

Milton Industries 760 1/4" MNPT HIGHFLOWPRO™ V-Style/European Interchange Brass Air Plug Fitting (High Volume Low Pressure Application) -Box of 10 https://www.amazon.com/dp/B003V5RPNQ?tag=atomicindus08-20

That said, the Prevost couplers are more spendy.

It appears @dnschmidt experience seems to indicate it is best to use the Prevost with steel.
 

danielbuck

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Prevost invented the High Flow coupler twenty years before Milton ever thought to copy it with the Milton V. Prevost makes couplers (green button) that work fine with Milton V or any other brand of High Flow (European standard) ******* including their own of course.
oh! I had no idea they were the same. good to know!
 

Beemer

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I just posted a quick video testing the insertion force of a few couplers discussed in this thread so far including the Stedlin and the Prevost.

Here's the link.
I can say that my experience with the Prevost couplers and plugs is much different than the video test, but I have the blue button couplers and am at about 100 psi.
Perhaps using the matching coupler and plug from the same manufacturer has something to my experience.
It is close to effortless and in no way a 30 pound force seen in the videoo. I doubt that it is even equal to the weight of a gallon of water which is 8 pounds.
That's my repeated experience and I am really impressed with the comparison to my previous Milton setups.
 

GeoBruin

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I can say that my experience with the Prevost couplers and plugs is much different than the video test, but I have the blue button couplers and am at about 100 psi.
Perhaps using the matching coupler and plug from the same manufacturer has something to my experience.
It is close to effortless and in no way a 30 pound force seen in the videoo. I doubt that it is even equal to the weight of a gallon of water which is 8 pounds.
That's my repeated experience and I am really impressed with the comparison to my previous Milton setups.
Let's break this down:

1) My tests were also conducted at 100 PSI.
2) The force measured in the video for Prevost coupler with the V style plug was not 30 lbs. It did jump to 30 lbs. when the plug bottomed out but I considered that a dynamic force which occurred for all the other tested combinations as well. I estimated the actual insertion force at between 20 and 25 lbs. Let's call it 22.5.
3) The V-Style plugs being tested have an aperture (according to my measurements) of .275". That translates into a cross-sectional area of .059 sq. in. Your blue dot Prevost plug takes an industrial interchange plug. Based on the ones I have lying around here from several manufacturers, the aperture is about .190", or a cross-sectional area of .028 sq. in. In other words, almost exactly half the area of the V style plug.

So assuming all else is equal (which it's probably not quite), the force required to insert a plug with a bore diameter half that of a type V plug would be about half. Half of my measured 22.5 lbs. is only 11.25 lbs., which is not far from your perceived 8ish lbs.

So it all checks out (approximately). Obviously, the design of the coupler and plugs can play in to things as well, since the Stedlin with a bore diameter of about .243 inches (.046 sq. in) was also about 10 lbs. Of course Mr. Stedlin has stated many times that his design was intended to provide almost the same flow characteristics as a "high flow" coupler and plug while very intentionally minimizing insertion force.
 

engineer2

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Do Stedlin couplers work with Milton 727 male fittings? They look the same, just wanted to be sure.
I'm getting tired of leaky air couplers. If I need both parts, no big deal, just more tools to change over.
 

GeoBruin

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Do Stedlin couplers work with Milton 727 male fittings? They look the same, just wanted to be sure.
I'm getting tired of leaky air couplers. If I need both parts, no big deal, just more tools to change over.
Yes, they will.
 

engineer2

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I bought a Milton 5 in 1 and it got stuck on a Milton 727 style fitting. Had to unscrew the air hose and then beat the Milton with a hammer to get it off. I'm returning it for a refund. The 727 fitting is on a portable air tank I've been using for years without a problem.
 

engineer2

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you push the plug in to the coupler and then it releases
I tried everything. The hammer worked. I suspect the tolerances on this particular 727 fitting didn't like the new Milton coupler. It works fine with regular couplers. I did see shards of o-ring material inside the new Milton coupler.
Will try Prevost or Stedlin.
 

engineer2

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Got Amazon to take it back. Still looking for a replacement. Stedlin is generally unavailable and Prevost is expensive for somewhat marginal reviews. I like the easy release kind so the wife can use it too.
 
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scooby074

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Got Amazon to take it back. Still looking for a replacement. Stedlin is generally unavailable and Prevost is expensive for somewhat marginal reviews. I like the easy release kind so the wife can use it too.

From another thread I believe Stedlin is done. All thats left is being sold on Amazon. Nice run while it lasted.
 

Hughmongus

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I use Milton A-style on my tools as they are push to connect. Not sure about air flow on these, but have had no problems with 1/2 “ impact and lug nuts. I use a Stedlin on the compressor just for noise Control. Being older with some hearing damage makes it very pleasant to unhook a longer hose from the compressor.
 

Stedlin

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Stedlin manufacturing is no more.

We tried our best but never made a profit.

We ceased all our manufacturing operations almost a year ago, and have just been selling off the inventory.

I had asked my partners previously if they were interested in having the our products manufactured offshore, and they declined.

I occasionally wonder if I should’ve stayed retired back in 2003.

I am certainly appreciative of all the positive feedback we have received.

Frank Stearns
 

GeoBruin

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Stedlin manufacturing is no more.

We tried our best but never made a profit.

We ceased all our manufacturing operations almost a year ago, and have just been selling off the inventory.

I had asked my partners previously if they were interested in having the our products manufactured offshore, and they declined.

I occasionally wonder if I should’ve stayed retired back in 2003.

I am certainly appreciative of all the positive feedback we have received.

Frank Stearns
Good to hear it straight from you Frank. It's a shame you weren't able to be profitable. Your products were a great option that filled some gaps in what's currently available. It's also a shame that it's so hard to manufacture products in the US and be competitive. Not hard to believe, but a shame nonetheless.
 

The Cobbler

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Thanks for chiming in, Frank
It's unfortunate you weren't able to make it work . It's a tough go out there trying to compete with the cheapest products .
I'm glad I was able to get a few small orders of your product , you had a great product.
Best from here forward
 

Tinkerer2

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Ok, I just ordered enough Prevost to replace all of my couplings and plugs. I'm tired of fighting the "pull back" couplings. I hope this are as good as everyone is saying.
 

Snapped-off

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Stedlin manufacturing is no more.

We tried our best but never made a profit.

We ceased all our manufacturing operations almost a year ago, and have just been selling off the inventory.

I had asked my partners previously if they were interested in having the our products manufactured offshore, and they declined.

I occasionally wonder if I should’ve stayed retired back in 2003.

I am certainly appreciative of all the positive feedback we have received.

Frank Stearns
Thanks for trying. I enjoy the few Stedlin pieces I have.
 

kbeefy

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Stedlin manufacturing is no more.

We tried our best but never made a profit.

We ceased all our manufacturing operations almost a year ago, and have just been selling off the inventory.

I had asked my partners previously if they were interested in having the our products manufactured offshore, and they declined.

I occasionally wonder if I should’ve stayed retired back in 2003.

I am certainly appreciative of all the positive feedback we have received.

Frank Stearns

You don't know until your try. I'm glad to have gotten some and will happily use them for years to come.
 

jrhaas60

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I’m glad I got mine a few months ago. Every time I use it I think about the quality. I hope that gives you some satisfaction Frank.
 

engineer2

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So I contacted Milton customer service about my air coupler.
After an acknowledgement, no further response.
Apparently Milton customer service is non-existent and they don't support their products.
Doesn't matter since I ended up getting a refund from Amazon after chatting with them.
 

Tinkerer2

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Got the Prevost couplers installed and WHAT A DIFFERENCE. I had to change all of my fittings to Prevost because all of the current fittings on my nailers, staplers, air chucks, air tools, etc didn't seat properly and leaked air. The fittings on the tools were ones that originally came with the tools.

If I was to loan out a tool, does the Prevost fitting fit all other couplers?
 

GeoBruin

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Got the Prevost couplers installed and WHAT A DIFFERENCE. I had to change all of my fittings to Prevost because all of the current fittings on my nailers, staplers, air chucks, air tools, etc didn't seat properly and leaked air. The fittings on the tools were ones that originally came with the tools.

If I was to loan out a tool, does the Prevost fitting fit all other couplers?
You have to be more specific. There are different Prevost couplers designed to fit a variety of plugs. Which ones do you have?
 

GeoBruin

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