Argon Gas Cylinder PSI

[watersteps]

I'm going to throw this out there in order to understand why??
I have a small Argon gas cylinder that I no longer use. I went over all the numbers on the cylinder and I believe it is tested for 2015psi.

The weight of this steel tank appears to indicate that it will hold much more psi then marked. It is a small #1 size sold by TSC under the Throughbred brand name.

This would be a great tank to use to refill my Outlaw at my home shooting range. The price of a "Guppy" tank is way to high for me.

I wonder if someone tests these tanks for a small fee?

[Doug Wall]

Are you thinking about running for a Darwin award? If the cylinder is rated  for2015 psi, don't try to push it to a higher pressure!!!! There's also the issue of different fittings.
https://www.cnn.com/videos/us/2011/09/12/fl-exploding-scuba-tank-death.bay-news-9

[avator]

LOL... I agree... don't fill past stated cap. I have a nice little (red) extinguisher tank. It's cap. is 1800 psi. Wouldn't even consider exceeding it.

[watersteps]

I don't plan on exceeding the stamped psi unless it was approved by a testing facility or the manufacturer. Since I didn't have any luck there I have it up for sale right now.

 

[Hoosier Daddy]

Are you sure 2015 isn't the hydro test date?
typically industrial gases are nice round numbers.
Argon cylinders have a nominal fill capacity of 2000 - 2250 psi

[watersteps]

Well I am not sure, here are the numbers that are printed on the cyl.

Numbers on cylinder, IC -3AAM154 DOT 3AA2015 SPUN   MH91011  MO 706 JP   01A11  +* REE19.4
thanks for asking  Hoosier Daddy

Well Mr Doug Wall I  don't know what a Darwin award is.  I have learned one thing by asking questions on this forum, DON'T.
Good Bye

[HunterWhite]

Hello Wade, that was a friendly joke about the Darwin award, do check out the Darwin awards, it's fascinating. High pressure scares me, but I am cheap. I have a scuba tank with adaptor for my airgun. It's 3000 psi.
I saw a high pressure tank in the bargain gate. Perhaps you can find a welder who needs an argon tank. Maybe you can recover some of the value from your tank to apply towards the one that you need. I think that these tanks are color coded,  I don't feel comfortable with mislabeled tanks.
Good luck.

[watersteps]

Is it possible to use an SCBA tank rated at 4500 psi to fill my PCP?
They list the size by 30 min  or 60 min, anyway to determine what cu ft that is?
Very good prices on ebay with current hydro.

[Taso1000]

Yes you can.  But be more concerned with the manufacture date.  Scba cylinders are only good for 15 years from the manufacture date.  It doesn't matter if the hydro date goes beyond the end of life of the cylinder.  No scuba shop or other fill place will touch after the 15 years are up.

30 minute cylinder = 45 cu ft
45 minute cylinder = 66 cu ft
60 minute cylinder = 88 cu ft

Thanks,

Taso

[HunterWhite]

You can get a regulator for the SCBA tank. Set the regulated pressure for the rifle that you have.  Some use 1000, some 2000, some from 3000, and some use 3600 psi. If you don't use a regulator then you must be very careful that you don't overfill your rifle.

[watersteps]

Thanks Guys,
OK I should look for a tank that has a current hydro, and that has several years  of life left (not 15 years old) . 
The 30 min size should work for filling my DAQ Outlaw.
I will be filling the tank with my Yong Heng compressor so it should never have go to a place for filling.
I guess I will have to wait until I get the tank  to determine what fittings I need to fill the tank.

[Taso1000]

Wade,

From what I've read it is not recommended to fill a 4500 psi tank with the Yong Heng compressors.  They aren't designed to handle that type of stress.  It's seems they are better utilized to fill rifles directly.  A $500 Shoebox compressor can fill scba cylinders to 4500 psi no problem.

Taso

[Nvreloader]

Wade

I just went thru this, here is some info that may help you,

There are 2 basic fittings for SCBA tanks, they are called CGA 346 or 347,
both come in either wrench or hand tighten models.

The 346 has a shorter nipple/probe that fit the tank fill nozzle, = 2-1/2" long,
the 347 has a longer nipple/probe at 3" long.

I have 2-347 and the hose hangs off/out from the tank sides about 2 to 2 1/2", depending on tank size.

Here is the 347 I got, all SS and works very well, gauge seems accurate when compared with my accurate test gauge.

https://www.ebay.com/itm/US-Stock-Paintball-PCP-SCBA-Fill-Station-Charging-Adapter-With-Hand-Tight-CGA347/302662847047?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2060353.m2749.l2649

HTH,

Tia,
Don

 

[Taso1000]

Wade and Don,

CGA 346 is only rated to 3000 psi.  CGA 347 is rated to at least 4500 psi.   I may have jumped the gun on this.  I'm doing more research.  Sorry.

Thanks,

Taso

[Taso1000]

Ok, CGA 346 is only rated to 3000 psi.  CGA 347 is the fitting you need for the majority of firefighter 4500 psi scba tanks.

Sorry for the confusion.

Taso

[avator]

If you want to use one of those big ole tanks then I suggest you get a booster pump like the Altaros and feed it with that tank. Regulate the input to the booster and you'll be set up much like the local FD.

[watersteps]

Thanks Guys, that info will help a lot.

I read somewhere that some people are trying to get the 15 year life of an scba cylinder changed to 30 years.

[HunterWhite]

Have you looked at the "airtanksfotsale" website?
It's through the vendor gate. I think that there could be other vendors linked from the GTA.

[avator]

Thanks Guys, that info will help a lot.

I read somewhere that some people are trying to get the 15 year life of an scba cylinder changed to 30 years.

This is true.

[Doug Wall]

Thanks Guys, that info will help a lot.

I read somewhere that some people are trying to get the 15 year life of an scba cylinder changed to 30 years.

That's true, but I think it costs about $300 to get the testing and certification done (only one company doing it), and you have to get it retested by them periodically.
https://www.digitalwavecorp.com/scba-life-extension-1