Divers bottles question

[andy33]

Hey i'm waiting for my aas410 to come from service and have been thinking about purchasing a divers bottle, the question is how come the bar rating on some is 232 and on others 300, i'm looking for a 3 litre as i dont expect to be out with all the time as i like my shotty to. I just dont want to buy the wrong one so 232 or 300.

 

Cheers for the help. B)

[JonD]

Hi,

 

From a diving perspective the 232\300 bar differences are that you get slightly more air in a 300 bar cylinder but they are heavier than a comparable 232. 232 bar use A clamps whereas 300 bar use DIN fittings.

 

It's just the maximum fill pressure 1 bar = 14.7 psi so 232 bar = 3400psi and the 300 = 4400 psi ish.

 

I'm sure someone will be along shortly to answer your filling question and which one to buy.

 

Jon.

[ODG]

My AA S410's don't fill past 200bar anyway - I have a 3litre bottle but it doesn't seem to make any difference as I've used different bottles at the rifle club. My S410's are older models though, so check yours when it comes back and see what it's fill level is. I typically lose 1bar pressure per shot - it's regulated so it will make no difference to the power of each shot, but I usually refill after it gets down to about 100bar anyway.

[bullet boy]

Just ask the Gun Shop what they would recommend for your particular rifle.

[hairyduck]

It doesn't make a difference which rifle you have. Simple answer is that you'll get more fills out of a 300 bar tank than a 230 bar one. I've got a 7l 300 bar one and it'd great, not too huge to lug around if needed and gives me loads of fills for my 500ml bottle @ 190 bar.

 

You will need a decent dive place locally to fill a 300 bar cylinder though as a lot more heat is generated in the cylinder so they should be filled under water , or left to cool down before being topped off again.

 

Cost is the same generally for 300 bar and 230 bar so it actually works out cheaper per fill

[Sauer]

go for the 232 bar cylinders

 

alot of places advertise 300 bar capability filling but you never get a fill to that....for reasons stated bout heating whilst filling may say 300 bar on gauge but once bottle has cooled youll drop 20 30 bar easy

 

they are heavier and 232 is all youll need

 

 

sauer

[bigred]

I was told by my local gun shop that I could fill my rapid mk2 to 232bar. Haha. Try saying that after a few.

[turbo33]

This should answer your questions.

 

http://www.deepblueshooting.com/department...ng/50282/page/2

 

Hope this helps.

[1963malc]

Atmospheric pressure is 1 Bar. A 3Litre cylinder with 232Bar holds 232x3L of compressed air and a 3L 300 Bar holds 300x3L of compressed air.

 

Your rifle will work at about 200Bar but even though the volume is less than 3L, with a 232Bar, you'll only be able to use (232-200)x3L before you get to a level that cannot fill the gun to 200Bar.

 

With a 300Bar you can use (300-200)x3L before it can't fill the gun right up.

 

Useful fills are about the same from 12L 232Bar as from 3L 300Bar plus the 300Bar is a sight smaller and lighter. If your bottle is filled at a shop, it'll heat up, some fill under water to cool the tank. As the whole thing cools down the pressure may have dropped so ask nicely for a top up, especially if you live some distance away. It'll save fuel.

 

Hope this helps.

[Clubshot]

Most Air Gunners use 300 Bar - more fills per time

 

207 & 232 will fill most Air Gun's but no where near the number of times a 300 Bar Bottle will

 

You can also decant from a 12 litre to a buddy 3 Litre Bottle

 

BOB/R