AEA AEA HP SF Bottle Adapter (Thread PSI Calculation)

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hgg2k

hgg2k

Member
Apr 29, 2021
152
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Greece
Hi,

I recently bought a bottle adapter for the AEA HP and while I ordered the adapter for the HP SS

HP SS.jpg


I received an adapter for the HP SF

HP SF.jpg


The online store is not replying to any of my emails when I ask them about the
mistake they made, so I am trying to find out if this adapter is able to withstand
the working pressure of the HP SS (250 bar)

While the threads of the gold adapter are of the same thickness all the way,
the threads if the SF black adapter are very thin during the first 12mm and then
thick the rest 10mm as you can see at the photo below:

Dual Thickness.jpg



According to Barlow's formula which calculates the working pressure of a pipe we have the following:

Barlow.jpg


where:
S = Ultimate Tensile Material Strength = 45.000 PSI assuming they are using 6061 aluminum.
T = Pipe Wall Thickness = 0.071" the thin wall and 0.191" the thick wall.
OD = Outside Diameter = 0.701"
SF = Safety Factor = 3

So based on the above, the working pressure of the thin wall is 3038 PSI = 209 BAR
and the working pressure of the thick wall is 8259 PSI = 569 BAR
(the bursting pressure is much higher) Please correct me if I am wrong.

So we have an adapter thread in which the 12mm are able to handle 209 bar
and the 10mm are able to handle 569 BAR.

Do you think that this adapter is not safe to use with the 250 BAR bottle pressure
that I will use in the carbon fiber bottle?

Thank you.
 
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Sicumj said:
I would return it.
Click to expand...

I wish I could... I have sent them countless emails, I tried to call them many times and nobody is answering.
I actually bought the adapter like the one on the link you provided but they sent me the black one for the SF.
They are ignoring all emails. AEA Europe has horrible customer support.

>>The price is about 4 times what you can get a bottle adapter for though
Exactly. Its like a scam.

Anyway, yes the black adapter looks that it is somewhat adequate but the gold one is much better.
That is why I am trying to find a way to buy one from the US because you cannot find them anywhere
else now. Even the link you gave me says "Sold Out".
 
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The thing is that I was planning to also buy the Huben GK1, but after that, there is no way!
Its the same group in Europe under the name Wolfiek with the same phone number
and they are selling all AEA, Huben, RTI, EDgun and others.

Whoever is living in Europe, and is planning to buy from them, I would strongly suggest
to only use PayPal.
 
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Sicumj said:
Just made these two yesterday. One is 1/2" OD x 1.25" one on gun is .375" x 1.25. Larger one went to a guy in Florida.

How many shots are you getting with the cricket regulator?

View attachment 451788
Click to expand...
I'm not sure about the number of shots, I didn't count them, the consistency is great now with the regulator.
Sorry, I live in Asia and my English is not good.
 
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