Fittings for large metal AIR tank one used for breathing air.

[RAJOD]

Hi, I might be able to a get a huge 6500 psi?  Acetylene type tank from a fire department.

What fitting do I need that would have a foster on the end of it?

How much larger are those than a 74 cuft carbon tank?

How heavy are they?   Not sure if i'll take it as its pretty big.  Can get it filled to maybe at fire dept to like 5000 psi.

[K.O.]

They will not fill it... you would be better off renting a 6000 psi nitrogen tank and getting it filled (with nitrogen)at a welding supply shop...

[pecor]

Acetylene does not run those pressures, So it must be a Nitrogen tank at 6500-psi, First look at the regular set-up that's required to handle those pressure's, They not cheap at all. Same with tank Fill's. I don't know if they will fill with air??  cheers Jaa 

[KnifeMaker]

He did say "Acetylene "  TYPE tank and was probably talking about the style and size. As it is from a FD, it is more than likely a tank form their cascade or fill station. If so, they will fill it themselves, or send it out.

I doubt a FD would offer a tank for air, that can't be used for air. Maybe some other place, but NOT a Fire Dept!

Most people, being not familiar with high pressure vessels, call ANY such tank an AC/Ox tank..Just as people in the past called 'All" electric circular saws, "SKil Saws/ Regardless of what brand it actually was. LOL!!!

Knife

[RAJOD]

They will not fill it... you would be better off renting a 6000 psi nitrogen tank and getting it filled (with nitrogen)at a welding supply shop...

That was not my question.  They do fill it now and will fill it.   Do you know them or something?

I don't know if I even want one for free.   They look huge, plus would need to pick it up and drive it in to be filled.   I'm not looking to buy one just am in the position to have one if I choose.

[RAJOD]

Acetylene does not run those pressures, So it must be a Nitrogen tank at 6500-psi, First look at the regular set-up that's required to handle those pressure's, They not cheap at all. Same with tank Fill's. I don't know if they will fill with air??  cheers Jaa

It might not be an acetylene tank, it just looks like one.  Its used to hold air right now.  Its just a huge steel tank that could hold many things, right now its used for AIR.   Buts the same size as a acetylene tank.   

Forget about if it can hold air or not or the pressure.  It can and does hold air.   The scuba shop wants them and I can have some too.  So I could put 4500 psi in it.

I just want to know if these things are worth the hassle, I can get 4 for free if I want.  But I don't know that I want them even if they paid me to haul them away.

was hoping there was someone here that had one and used it for a PCP fill station to let me know if they are worth the hassle beause they are huge and look heavy.   They might weigh 400 pounds but I don't know did not try to lift it.

[RAJOD]

He did say "Acetylene "  TYPE tank and was probably talking about the style and size. As it is from a FD, it is more than likely a tank form their cascade or fill station. If so, they will fill it themselves, or send it out.

I doubt a FD would offer a tank for air, that can't be used for air. Maybe some other place, but NOT a Fire Dept!

Most people, being not familiar with high pressure vessels, call ANY such tank an AC/Ox tank..Just as people in the past called 'All" electric circular saws, "SKil Saws/ Regardless of what brand it actually was. LOL!!!

Knife

Yes correct Knife!
Probably used as a cascade for their fill stations.   Not wanted anymore dumping them.   

So i figure I want to make it like my carbon tank.  Just need a male foster on the end.
But it won't have slow flow so filling a gun could be tricky with one as the valve might not be jeweled action, might be tricky to adjust flow dunno.

[makarov76]

Just make sure its not an acetylene tank' they have a porus device inside saturated with actetone
that dissolves the acetylene'
acetylene has to be dissolved in acetone to be compressed to tank pressure round ahunnit fitty psi'my buss two hunnit fitty psi'
free acetylene gas operates @ 15psi MAX'
If you try and use an acetylene tank YOU MIGHT DIE!
DO NOT USE ANY TYPE OF FUEL OR OXYGEN TANK OR YOU MIGHT DIE!
Only use nitrogen' compressed air' inert gas tank' or certified dive tanks'

[K.O.]

I guess you should have been clearer maybe... and KNOW EXACTLY WHAT THEY ARE... Do not get on folks for wanting to keep you safe...

[K.O.]

and this is the Title of the thread...

"Fittings for large metal Acetylene tank"

[avator]

Rajod..
They make a two wheeled hand truck that has (wheelie bar) type wheels that allow the loaded hand truck to be tilted back and moved around very easily. I have a tank just as you describe in my barn that was here when I moved in. I haven't dug it out to look at it. I'm sure it would need hydro and visual inspections before anyone would fill it.

[mann]

You would get alot of fills out of it and could probably find a regulator from Joe b at airtanks for sale.

[RAJOD]

I guess you should have been clearer maybe... and KNOW EXACTLY WHAT THEY ARE... Do not get on folks for wanting to keep you safe...

Yes I did not realize I could change the topic heading.    I did not know what to call it only what it looked like to me.

I changed the topic to AIR.   Its used in a fire department in a daisy chain for breathing air.  So better than pellet gun tank air.

Again I just want to know how much of a hassle is it, how many fills can I get, can I fill my carbon tank from it.

How heavy, can the valve be used to fill a gun directly or are they too fast.   Just trying to find out the hidden costs and hassles of owning such a big tank.   Cost to me is hauling it, getting a foster, and lugging it back for fills.   

[avator]

When I was first exploring the world of PCP I knew I wasn't one for hand pumping. I stopped by the local American Gas welder's supply shop. I could lease a large tank like this for $72 and year and they would deliver filled exchanges for $18. This included C02 or Compressed air.
For the cost of gauges/ regulators and inspections, not to mention logistics, this seems a better route.

[K.O.]

If you do get them I suggest you not use them until you learn a good bit more about Safety and these High pressure potential BOMBS...

But find out exactly what they are first they might not even pass an inspection for certification...

It really is important to learn about things first with this stuff... and honestly I do not like how many transport thier tanks there is a chance of knocking off the valve... and what can happen usually no matter how improbable does happen...

[mann]

I bet there like torch tanks about 5 ft tall. There is a cap that can screw over top of the valve . Depending on the size they are like a 100 lbs each for weight

[RAJOD]

If you do get them I suggest you not use them until you learn a good bit more about Safety and these High pressure potential BOMBS...

But find out exactly what they are first they might not even pass an inspection for certification...

It really is important to learn about things first with this stuff... and honestly I do not like how many transport thier tanks there is a chance of knocking off the valve... and what can happen usually no matter how improbable does happen...

Thanks,  the point of my post here was to learn more about them.    I don't want to get one and find it all out later.   
I was at PCP store looking at his indoor range and he had one.  Said he did not ever have to hydra it because it was such n such a steal tank etc.    Later I get opportunity to get them free but even free is not always a good deal if there are hidden issues.

I'll check out the videos, thanks.

I looked at them.  Yes I've seen those.  They are purposely knocking the valve heads off the tanks.   I've seen people shoot carbon fiber tanks too.    I own a 4500 psi carbon tank.   Not met anyone that has had one blow up on them.  They bust at 20,000 PSI.     The large metal tanks are even thicker and stronger.   They are not going to spontaneosly blow up.

The risk is moving them in a truck and it falls off the back and somehow hits perfectly.  Are there people on this forum that own such tanks that have had them spontaneously blow up?   Or do the heads fly off on their own?   I don't think so, the only issues I have seen are people making videos shooting them, or slicing the heads off.

Probably not many people on this forum own such tanks, most like me own carbon fiber and have no experience with them.
I thought there might be a few that could give me an idea of how well the included "Fast Fill Valve works"   
How many CUFT they are so I could calculate how long it might last before needed a fill.   I'm thinking maybe 1x per year.
I don't own any big bore PCPs. 

[mann]

I want to say when I check into a nitrogen tank 6000psi when I got my big bore it was like 400 or 600 cuft it was a steel tank like 5 ft tall maybe a 12 inch diameter

[RAJOD]

I want to say when I check into a nitrogen tank 6000psi when I got my big bore it was like 400 or 600 cuft it was a steel tank like 5 ft tall maybe a 12 inch diameter

Ok so like 6.7x more than my tiger shark tank.   I'm guessing I get 50 fills from it (not really counted) so 50 x 6.7 =  335 fills.
At 40 shots per fill 335x40 = 13,400 pellets.   

That could be a year of shooting depending on how many people I let feed off it.

[RAJOD]

When I was first exploring the world of PCP I knew I wasn't one for hand pumping. I stopped by the local American Gas welder's supply shop. I could lease a large tank like this for $72 and year and they would deliver filled exchanges for $18. This included C02 or Compressed air.
For the cost of gauges/ regulators and inspections, not to mention logistics, this seems a better route.

So if someone offered you a free 500 cuft air tank + free fills (But you have to drive it there, 3miles) you would say no and pay $90.00 per 6 months to a year?     

If they are 100 pounds one time a year might not be terrible.