GTA
All Springer/NP/PCP Air Gun Discussion General => Air Guns And Related Accessories Review Gates => All Air Gun Accessories Gate => Topic started by: BigBird on September 07, 2021, 11:13:04 PM
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One of these has been lost in transit for a few weeks. I ordered a second one of these from a different seller with US stock and it came pretty quickly. I have seen a lot of these filters; some being 20 MPa but most being 30 MPa. This was a whopping 42 MPa! That's roughly 6091.585 PSI
When I received it the caps were very tight! I thought I would see a thick wall but was pretty surprised to see what appears to be 2.5 mm or about .1" wall at the threads. ALTHOUGH really the base of the threads is what the calculation should go by due to the outer o ring.
I put the specs in the Engineersedge.com calculator. I just calculated using the 2.5 mm or .1". I had to do a magnet check just to make sure it wasn't some nice alloy=fail.
I'm pretty sure the nice people from China sent me a bomb!
I think the 42 MPa IS the bursting pressure. That's probably what all that scribbling is on the end of the tube.
Airmega 1.3" OD
(https://www.gatewaytoairguns.org/GTA/MGalleryItem.php?id=8121)
2.5mm
(https://www.gatewaytoairguns.org/GTA/MGalleryItem.php?id=8122)
Inside
(https://www.gatewaytoairguns.org/GTA/MGalleryItem.php?id=8123)
Thread diameter
(https://www.gatewaytoairguns.org/GTA/MGalleryItem.php?id=8124)
42mpa
(https://www.gatewaytoairguns.org/GTA/MGalleryItem.php?id=8125)
Engineersedge Calculation
(https://www.gatewaytoairguns.org/GTA/MGalleryItem.php?id=8126)
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I bet the brass female quick release fails first.
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What does the calculator say for 7075 t6.
I suppose you are figuring it for 6061. Trouble is, it’s hard to tell what al alloy they are using. Even if they made a claim, I’m still not sure I’d believe it.
Dave
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I bet the brass female quick release fails first.
Yeah, I had read of your experience and was going to replace that with a SS one.
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What does the calculator say for 7075 t6.
I suppose you are figuring it for 6061. Trouble is, it’s hard to tell what al alloy they are using. Even if they made a claim, I’m still not sure I’d believe it.
Dave
They specify "Material: Aviation aluminum alloy" so it could refer to anything.
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I have a tube coming I ordered from Amazon. It’s not branded Airmega. The pictures in the description shows to have thick walls. We will see what shows up. It may get sent back, which is why I used Amazon.
Dave
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I have a tube coming I ordered from Amazon. It’s not branded Airmega. The pictures in the description shows to have thick walls. We will see what shows up. It may get sent back, which is why I used Amazon.
Dave
My new one just got here. It is MUCH bigger...and bluer. Safety margin and then some! The other one may be good for the hand pump or a big LDC.
(https://www.gatewaytoairguns.org/GTA/MGalleryItem.php?id=8133)
(https://www.gatewaytoairguns.org/GTA/MGalleryItem.php?id=8134)
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I got mine a few days ago and it looks just like your first one. Airmega on the side and all.
I removed both outer orings. Not sure why they are on there. The inner ones hold fine.
I put a small tampon filter downstream just in case some of the media gets loose. I don’t trust the way they shove the tampon into the small od of one end of mine. I recall someone on here recently had one that let go of some fibers and they plugged off the quick connect on his gun.
I’ve ran mine to 4200 several times since I got it.
That blue one is huge. I wouldn’t want it on a handpump for sure. Would make a decent tube for a conversion or custom build. Wonder how many cc’s it is?
Dave
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Yeah. My black one had the outside orings and not the inside although I see a groove for it. There may be orings for it too. I don't trust the wall thickness. I think it was Steveoh's that blew. I read about that on another forum in a Google search (staying true to GTA). I have a SS quick connect.
Someone here made a pressure vessel out of one of these blue ones. I was just reading it. I think even the black one would maybe even make a 3kpsi pistol if you can lower your shot count expectations.
So 4200 psi? I wonder if anyone else here is using these Airmega's?
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Dan
Very interesting, in the size difference.............. ;) GO Blue. What is the rating for the Blue?
Can you provide a link for the Blue one........ 8)
Thanks,
Don
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Dan
Very interesting, in the size difference.............. ;) GO Blue. What is the rating for the Blue?
Can you provide a link for the Blue one........ 8)
Thanks,
Don
This is the listing but it doesn't list a MPa rating, just the 30 MPa burst disk. Here are some measurements. Even if it is 6061 I think it is good to 4500 PSI. Not sure the thread but maybe 32mm x 1.5??
https://www.amazon.com/gp/aw/d/B08LKYXBYS (https://www.amazon.com/gp/aw/d/B08LKYXBYS)
(https://www.gatewaytoairguns.org/GTA/MGalleryItem.php?id=8135)
(https://www.gatewaytoairguns.org/GTA/MGalleryItem.php?id=8136)
(https://www.gatewaytoairguns.org/GTA/MGalleryItem.php?id=8137)
(https://www.gatewaytoairguns.org/GTA/MGalleryItem.php?id=8138)
(https://www.gatewaytoairguns.org/GTA/MGalleryItem.php?id=8139)
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When ordering the black one I thought it was the same size where I could use the cartridges in it. I didn't find much info on the differences. This blue one was in the Amazon Warehouse. So it wasn't that much difference.
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Thank you,
Don
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They specify "Material: Aviation aluminum alloy" so it could refer to anything.
It becomes "aviation alloy" when parts go flying...
Perhaps Lloyd could pressure test one of these to destruction with his hydraulic setup? https://www.gatewaytoairguns.org/GTA/index.php?action=profile;u=2205 (https://www.gatewaytoairguns.org/GTA/index.php?action=profile;u=2205)
For instance:
https://www.youtube.com/watch?v=0pKpju0sWVg (https://www.youtube.com/watch?v=0pKpju0sWVg)
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They specify "Material: Aviation aluminum alloy" so it could refer to anything.
It becomes "aviation alloy" when parts go flying...
Perhaps Lloyd could pressure test one of these to destruction with his hydraulic setup? https://www.gatewaytoairguns.org/GTA/index.php?action=profile;u=2205 (https://www.gatewaytoairguns.org/GTA/index.php?action=profile;u=2205)
For instance:
https://www.youtube.com/watch?v=0pKpju0sWVg (https://www.youtube.com/watch?v=0pKpju0sWVg)
Yeah. I'm pretty sure I could do it with my 10kpsi hydraulic hand pump. I need to get the air out of it. Llloyd has a booster but I'm not sure it is needed. That would probably help determine if it is 7075 or something else. However I think if I put the inside rings on it may hold a lot more pressure.
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Tried to replace the 8MM Female Quick-Disconnect and got the wrong thread! (1/8 BSPP). It fit but didn't seal. Used this filter to 3000psi and no problems (after I put the other fill whip on instead of thequick connect.
(https://www.gatewaytoairguns.org/GTA/MGalleryItem.php?id=8153)
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Does anyone know the thread on these filters? Is it 1/8 NPT? My 1/8"-28 BSPP almost fits but gets tightest the end and air blows by (55 degree vs 60??). It seals on an internal delrin ring.
It must be either 1/8 nps or M10 x 1 mm ? It is a straight threaded fitting, hence the white ring for sealing. I just think it is odd to have an imperial thread on so many Chinese parts.
Here are some threaded ends/females and 8mm nipples:
(https://www.gatewaytoairguns.org/GTA/MGalleryItem.php?id=8155)
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theyre generally m10 -1.0
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theyre generally m10 -1.0
Great. That is a tap and die I have. Now I need a 1/8 BSPP to make the SS quick connect converter.
Thanks!
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Ok. My biggest worry was the brass quick connect. I don't have a 10mm one so I just hooked the SCBA fill system directly into the blue filter. Why get complicated? Filled up my 30 min tank and worked to 1500psi. Stopped there cause it went to 60 c. Will fill again when ice freezes over.
(https://www.gatewaytoairguns.org/GTA/MGalleryItem.php?id=8158)
(https://www.gatewaytoairguns.org/GTA/MGalleryItem.php?id=8160)
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Speaking of non-magnetic tubes of death... the microbore hoses move slowly when I fill up and THEN a lot when I empty the lines(retraction)!
Is this OK? It scared me. Keep in mind it also scared me when someone snuck up on me and tapped me on the shoulder while filling my gun. I am always waiting for something to blow up.
Is something going to blow up?
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youre not paranoid if theyre really after you :D
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youre not paranoid if theyre really after you :D
Is that normal? Not being paranoid but the microbore hoses expanding (and retracting)? One is a hand pump hose. Maybe I should get a different hose?
A little paranoia with airguns is ok :o
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ive never witnessed that, so i dont think so
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I filled my SCBA tank up to 4300 psi without problem then filled my 48ci bottle and the "explosion proof disk" burst at 4000 psi.
(https://www.gatewaytoairguns.org/GTA/MGalleryItem.php?id=8178)
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Someone here made a pressure vessel out of one of these blue ones. I was just reading it. I think even the black one would maybe even make a 3kpsi pistol if you can lower your shot count expectations.
So 4200 psi? I wonder if anyone else here is using these Airmega's?
Look over here: https://www.gatewaytoairguns.org/GTA/index.php?topic=189768.0 (https://www.gatewaytoairguns.org/GTA/index.php?topic=189768.0)
Also, just saying but I personnally would invest in a new quality fill hose ;).
Cheers Dan!
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Someone here made a pressure vessel out of one of these blue ones. I was just reading it. I think even the black one would maybe even make a 3kpsi pistol if you can lower your shot count expectations.
So 4200 psi? I wonder if anyone else here is using these Airmega's?
Look over here: https://www.gatewaytoairguns.org/GTA/index.php?topic=189768.0 (https://www.gatewaytoairguns.org/GTA/index.php?topic=189768.0)
Also, just saying but I personnally would invest in a new quality fill hose ;).
Cheers Dan!
That guy did a good job. I'm starting to think this may be 7075?? There is a 200cc tube with the same general OD on ebay and it is a 4500 PSI and says 7075.
Now THAT one is about the same price but bigger and with a fill end and gauge.