Wanted: Dive Tank

[DMcCready]

Looking for a dive tank for an air supply for my buggy.

Doesn't need to be in test but would need to have a good chance to pass. Doesnt need to be pretty. Looking for around the 10L capacity (confined a bit on the overall length I can fit. I have 700mm overall)

Cheers Guys

[Crash bandicoot]

9kg dry powder extinguishers are 690mm with fitting and take plenty of psi. mine generally sits around 120psi.

[DMcCready]

Cheers for the tip Crash.

I have played with a few compressors with mixed results. If I had room I would throw a AC pump in. For the amount of times I will use it I want to just have a dive tank that is at dive pressure. Not really worried about the few bucks to get it refilled

[MihiT]

Dive tanks are at many many times compressor psi. Many.

No shop worth their ticket will fill an uncerted tank.

Have you considered using an old lpg tank? They're a dime a dozen and good for a few pounds...

[DMcCready]

Thats why I am looking for a scuba tank that is either with a current test or one that can still pass so I can take it to a dive shop and get it filled.

Using the low pressure loop from a dive regulator I can get multiple fills out of one tank

[Crash bandicoot]

Thats why I am looking for a scuba tank that is either with a current test or one that can still pass so I can take it to a dive shop and get it filled.

Using the low pressure loop from a dive regulator I can get multiple fills out of one tank

If your going to the trouble of hunting down a certifiable dive tank you should really convert an A/C pump. Mine will charge to 110 psi, in about 30 seconds, and at engine idle will maintain 50 psi.
beaded four tyres the other day 1 after the other.

[DMcCready]

An AC pump would be the only type of compressor I would run... But as stated before I dont have the room. 6L Chev jammed down between triangulated 4 links and squashed between shock hoops

[tallsam66]

Get a good safe tank ... the gas tanks I deal with at work are loaded to between 250 & 300 MPa ( Mega Pascals ) that's 36000 & 43000 PSI. That's a bomb.
NO dive shop will fill an untested tank. Cant believe you want to bang & bash around something that will kill you when it fails.
If you don't have much space buy a good qualify electric compressor . The ARB one I have runs small air tools , will easily rebead a tire & takes my 33's from 20 to 35 psi in under a minute each.

[Weeds]

Get a air con pump mcreapy I don't wana drag you around with a bomb attached

[turoa]

90% sure I have one or two of them floating around in Wellington. Will try and get my brother to check

[DMcCready]

90% sure I have one or two of them floating around in Wellington. Will try and get my brother to check

Cheers Turoa. Message me if he finds anything

[DMcCready]

Get a good safe tank ... the gas tanks I deal with at work are loaded to between 250 & 300 MPa ( Mega Pascals ) that's 36000 & 43000 PSI. That's a bomb.
NO dive shop will fill an untested tank. Cant believe you want to bang & bash around something that will kill you when it fails.
If you don't have much space buy a good qualify electric compressor . The ARB one I have runs small air tools , will easily rebead a tire & takes my 33's from 20 to 35 psi in under a minute each.

At no time in this thread have I said I want to try and find a dive shop to fill some POS tank I have lying around. I understand pressure. I too work with oxy bottles and such that run at 300 Mpa. A DIVE TANK RUNS AT 10% OF THAT PRESSURE.

I have talked to and watched a number of trials and winch comp guys that have been using dive tanks for years with no issue. Hell Ultra4 trucks and even desert racers use these types of tanks ( Compressed air or CO2) to do everything from fill tires to run air tools. With proper mounts and protection of the tank there is no issue.

I am happy with my decision to use a safe and up to test dive tank. thanks

[skid]

Your entry to Kiwi is going to be declined sorry

Last thing we need is a terrorist driving around Rallywoods with a bomb on board !!

[DMcCready]

Your entry to Kiwi is going to be declined sorry

Last thing we need is a terrorist driving around Rallywoods with a bomb on board !!

Just call me Osama... Weeds already is

[J_Dub]

We have a dive tank already converted. Its either certed or can be, its standard full size though, I thought it would be bigger than 700mm. But if 700mm is standard then it must be that, I'm in pukekohe but??

[DMcCready]

We have a dive tank already converted. Its either certed or can be, its standard full size though, I thought it would be bigger than 700mm. But if 700mm is standard then it must be that, I'm in pukekohe but??

PM'ed Ya mate

[mudlva]

[Craydiver]

ima diver but ive never bothered with tanks, and will be using A/c
if going for tanks, TRy and buy the newer steels - you can get up to 15l now about $400-500 new, these hold a lot more ie 40%. than the older 80-88cu (equiv to 11l) alloys,
the new steels are bigger dia than old alloys and bit shorter. Conversly if size and issue go for new small steel, I have 10l, its 2/3 the length of my alloy.
Theres plenty sec hand, but be careful of the older Aluminium tanks - these are much more likely to fail the hydro.
Couple dive buddies both had their 20yr + tanks failed in last few yrs, conversely I still have my first 80cu alloy tank brought in 83 going strong.
you can get old regs pretty easy and use old low pressure hose, cut end with air connector and hose clip, plenty of sec hand bottles on trade me which you get for under 200 easy.
Make sure you are connected to low pressure port.......!

Make sure you avoid completely emptying the tank when using, always keep 300psi in it, else it can suck in humid air when empty, which later sits in tanks and starts corrosion, and will cause you to fail hydro.

[Checkerhead]

Seeesh! I was wondering how this thread kept being at the top of the active topics. You'd think the title was "Opinions wanted on running a dive tank" or "who will fill my shitty dive tank?"

Instead it's simply a smart guy who's considered his options and now wants to purchase a dive tank that he can cert and get filled. Why all the opinions?

[DMcCready]

ima diver but ive never bothered with tanks, and will be using A/c
if going for tanks, TRy and buy the newer steels - you can get up to 15l now about $400-500 new, these hold a lot more ie 40%. than the older 80-88cu (equiv to 11l) alloys,
the new steels are bigger dia than old alloys and bit shorter. Conversly if size and issue go for new small steel, I have 10l, its 2/3 the length of my alloy.
Theres plenty sec hand, but be careful of the older Aluminium tanks - these are much more likely to fail the hydro.
Couple dive buddies both had their 20yr + tanks failed in last few yrs, conversely I still have my first 80cu alloy tank brought in 83 going strong.
you can get old regs pretty easy and use old low pressure hose, cut end with air connector and hose clip, plenty of sec hand bottles on trade me which you get for under 200 easy.
Make sure you are connected to low pressure port.......!

Make sure you avoid completely emptying the tank when using, always keep 300psi in it, else it can suck in humid air when empty, which later sits in tanks and starts corrosion, and will cause you to fail hydro.

Cheers for the advice! Much appreciated

[DMcCready]

Seeesh! I was wondering how this thread kept being at the top of the active topics. You'd think the title was "Opinions wanted on running a dive tank" or "who will fill my shitty dive tank?"

Instead it's simply a smart guy who's considered his options and now wants to purchase a dive tank that he can cert and get filled. Why all the opinions?

Haha Thanks... thought I was going crazy for a bit there