I was at the scuba shop getting a tank filled today and the owner there asked why I don’t get a large steel tank and keep it in my garage. He suggested a 200 tank. Filing it is the same price as my small tanks and I was wondering if anyone else is doing that. He said he has two customers he fills them for. Also he is filling them to 6000 psi for them.
Other Large air tanks
- Thread starter Ttexastyler
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No idea what a 200 tank is or what he’s filling to 6K. Super intriguing so I’m watching this with you.
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I have seen fill rigs for N2 that were for 6k supply pressure. I guess one of the things to consider is having a rig with that kind of working pressure. Usually a 300 bar working pressure cylinder has a test pressure of 450 bar, which is under, but close to, 6000 psi. One would have to be pretty vigilant about using a cylinder charged to that high of a press and what gear was connected to it.
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Joe B has 2 HUGE tanks that are constantly being topped off automatically with his commercial compressor to fill his Great Whites, Tiger Sharks, Guppies, guns....one of those air tanks would last a long time for one person!
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I was also a bit worried about this. Still in the thought process. Wish it could be like my normal garage compressor that has a regulator at one point (shut off) and a lower output regulator. Still thinking through this
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You would need the fill set capable of handling 6000 psi too. It also seems dangerous for the gun if you ever mess up. A really big heavy tank seems more like a transportation plus available space in your house question. If you have space for it and a way to get it back and forth to the scuba shop it could work. But I would not have it filled to 6000. I'd stay with 300 bar.
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yes, it would have a high pressure reg designed to handle the 6000psi, and you'd have it chained/strapped in place... They've been used in stores and at paintball fields for decades, and even for other applications like HVAC. SCUBA and other air fill shops use one (usually more in series, referred to as cascade) so their compressor(s) aren't running all the time, they just keep the bank topped off. The pressure safety itself isn't the challenge here as long as you're using the proper equipment/reg... But like another commenter noted, they are bulky/heavy and the big question is getting it safely to and from your house to the place to fill them.
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I would be VERY curious about what brand steel tank he’s pushing to 6000 psi
There are numerous large capacity cylinders used in (SCUBA fill) cascade systems that are DOT rated for 6000 psi. They are also very expensive, large, heavy. I too would wonder what exactly the SCUBA store owner was suggesting for the OP?
Not thinking this to be a practical solution as a decent compressor could be gotten for less and no need to haul it back and forth.
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Most of the 6k tanks I've seen at many different welding supply shops are 484 cf (300 size) tanks they weigh about 400 lbs due to steel thickness they are not easy to move because of that. I have seen many 200 size 4500 psi tanks and they are much easier to handle BTW these are all in nitrogen service.
That last item is very good for your guns NO O2 , NO C02 , NO moisture and they shoot a little faster.
That last item is very good for your guns NO O2 , NO C02 , NO moisture and they shoot a little faster.
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Im not sure what a 200 size is but Steel tanks rated for the pressure have been around for ages I believe my bauer compressor dealer said his steel tank is more than 25 years old and uses it everyday. Large steel tanks (5 ft tall?) are not made to be moved constantly, although you probably could, it would be a pain. You are not using it to fill your guns directly, you are using it to top off your fill bottle. So no regulator is necessary other than you being there to shut it off at the proper pressure, just like you would with a fill bottle and airgun. Using a small bore whip would also allow you the time to close the valve easily and not shock anything with a high amount of pressure.
Big tank at 6k
Fill tank at 300 bar
Airgun at less than 300 bar
Big tank => Fill tank => airgun at whatever you want.
Big tank at 6k
Fill tank at 300 bar
Airgun at less than 300 bar
Technically you can go from the big tank to the gun but having a restriction like a small bore fill whip will help prevent slaming the air into the airguns components and orings. Is there actually a savings with buying such a large tank? On paper maybe, but are you willing to drag a steel tank back and forth?
Allen
Big tank at 6k
Fill tank at 300 bar
Airgun at less than 300 bar
Big tank => Fill tank => airgun at whatever you want.
Big tank at 6k
Fill tank at 300 bar
Airgun at less than 300 bar
Technically you can go from the big tank to the gun but having a restriction like a small bore fill whip will help prevent slaming the air into the airguns components and orings. Is there actually a savings with buying such a large tank? On paper maybe, but are you willing to drag a steel tank back and forth?
Allen
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The other 2 questions are how large is your fill tank and how often do you visit to top off? Maybe you shoot enough to have a compressor of your own?
Allen
Allen
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CS6 6000PSI Cascade Cylinder W/Pigtail and Mounting Rail
A 6000PSI high pressure breathing air cascade system can be custom built to your design.
www.breathingair.com Upvote 0