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Old 08-11-2008, 04:16 AM   #1 (permalink)
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Question Scuba tank primary air supply?

Ok, well I've been wanting to use a scuba tank as my primary air supply but what do i need in order to connect to my gun i.e. fittings, type of reg, etc. All help is greatly appreciated.

Note: im not trying to use as a fill station

Thanks in advance
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Old 08-11-2008, 04:42 AM   #2 (permalink)
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You need a regulator that can bring it down to 800 psi or whatever input pressure you want for your gun.

I believe stabilizers want 3000 PSI maximum and I would not really want to try and make one hold the whole 3000 PSI of the scuba. Additionally, whatever lines you run (if the reg is not built in to the scuba tank) will have to be really tough and even then are kind of scary..3000 psi is a lot.

So you need a regulator and thats it. I guess when divers dive they run regs on their scuba tanks so you should have no problem finding one. Even if it brings it down to 1000 psi you can run that into a stab and it will work like any other HPA tank.
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Old 08-11-2008, 04:55 AM   #3 (permalink)
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Ok well here what i was thinking, using one of those fill station things for the scuba tank & then connecting it to this Inline Stabilizer [PPSP011] - $69.00 : Palmers Pursuit Shop!, Where Custom Still Means Something would that work?
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Old 08-11-2008, 04:57 AM   #4 (permalink)
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Old 08-11-2008, 08:30 AM   #5 (permalink)
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Scuba tanks come in various pressure ratings, with 3000 psi being the standard, but there are also 3500 psi tanks available, as well as 2750psi tanks. most of which use a standard npt thread for the tank valve. You could always thread a paintball type regulator directly into your scuba tank in place of the tank valve, or you can use a scuba first stage regulator, and keep the scuba tank as is.

To do this, first you need a scuba first stage regulator. The regulator will have two different type of ports, one will be high pressure 3000 psi, and one will have low pressure around 125psi. Depending on the make of the regulator, you could have one to three low, and one or two high pressure ports. Also some makes of first stage regulators are externally adjustable for intermediate pressures, while most are not. If you decide to go this route, go to a dive shop that services regs and talk to them about what you are trying to accomplish.
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Old 08-11-2008, 08:54 AM   #6 (permalink)
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Quote:
You could always thread a paintball type regulator directly into your scuba tank in place of the tank valve
I'm not sure the threading is the same.

Also, unless it's a pony bottle I would not use the tank on gun (I'm sure someone else would have chimed in with this) they are just too heavy.

If you are using this for a tank gun or a stationary emplacement, it might not be a bad idea... by by lugging around that much tank you are really handicapping yourself on the field.

Your best bet might be to save the money you would have spent custom mounting a reg to a heavy steel scuba tank and put it towards a good hpa paintball airsystem.

E
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Old 08-11-2008, 04:28 PM   #7 (permalink)
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Quote:
Originally Posted by Schmitti View Post
I'm not sure the threading is the same.

Also, unless it's a pony bottle I would not use the tank on gun (I'm sure someone else would have chimed in with this) they are just too heavy.

If you are using this for a tank gun or a stationary emplacement, it might not be a bad idea... by by lugging around that much tank you are really handicapping yourself on the field.

Your best bet might be to save the money you would have spent custom mounting a reg to a heavy steel scuba tank and put it towards a good hpa paintball airsystem.

E
Actually i will be using a pony bottle 30 cubic foot to be exact 30 Cubic Foot Pony Bottle, Scuba Tanks, Catalina, 30 Cubic Foot Pony Bottle or an aluminum 50 Aluminum 50 Tank, Scuba Tanks, Luxfer, Aluminum 50 Tank
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Old 08-11-2008, 04:48 PM   #8 (permalink)
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"Max input psi: 1800 (High pressure format 3000)"
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Old 08-11-2008, 04:53 PM   #9 (permalink)
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Quote:
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"Max input psi: 1800 (High pressure format 3000)"
So it'll work correct?
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Old 08-11-2008, 11:45 PM   #10 (permalink)
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I'm not sure I'd want to see the full 3000 going into any sort of inline paintball reg. The max rating may well be 3000 but you'll want to observe the typical working pressure. And for them it's up to around 1500psi based on CO2 on a hot summer day with the bottle sitting in the sun for part of it.

An HP reg to drop it to the usual 800 to 850 psi would be ideal. But I know that full sized tanks use a larger thread than the CO2 and HPA threading on our paintball tanks. But since these are pony bottles they may use a smaller thread that will match a tank reg. You'd have to email Catalina to find out what the thread size is.

Scuba regs aren't going to help you since the first stage outputs 100 to 150 depending on the maker's design. They ARE adjustable but I'm not sure you could raise it to the 300 to 400 psi we need to feed our valves. However if you could then you won't need an inline reg. A direct feed off that first stage would do the trick.
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