View Full Version : tank duration time
Tassie_Rohan
April 4th, 2007, 11:49 PM
Quick question - ignoring scrubber duration how many hours of diving do 3 litre tanks of diluent and oxygen provide on a CCR? If it matters lets say a mCCR such as the rEvo?
I’ve been lurking over on Rebreather World for a while, and am considering the logistics of operating a rb in some rather remote locations…
Cheers,
Rohan.
Mr.X
April 5th, 2007, 08:09 AM
Quick question - ignoring scrubber duration how many hours of diving do 3 litre tanks of diluent and oxygen provide on a CCR? If it matters lets say a mCCR such as the rEvo?
I’ve been lurking over on Rebreather World for a while, and am considering the logistics of operating a rb in some rather remote locations…
Cheers,
Rohan.
I get roughly - very roughly 2-4 hours (oxygen) and that is quite dependent on having to bailout, inject more oxygen during deco. etc. As a rough standard I can get a weekend's worth of diving, or 4 longish dives (45- 60+minutes). These are numbers on the KISS rebreather - MCCR. Additionally, I carry bailout with a direct hook-up to my manifold for the dil side. Too easy to drain the dil. at depth using the KISS BOV.
X
Tassie_Rohan
April 5th, 2007, 08:33 PM
Cheers for that X -
One last question: what fill pressure do your rebreather tanks have?
Cheers,
Rohan.
DiveTub
April 6th, 2007, 01:45 AM
As long as I am not going up and down too much.
2.7lt fabers
207 Bar in the O2
250 Bar in the Dil
Gets me around 4 one hour 40m ish dives with a good safety margin of gas.
Cheers
Chriso
Tassie_Rohan
April 6th, 2007, 02:29 AM
Cheers for that Chriso.
And now for a curved ball: anyone know what pressure your average medical oxygen (or welding grade oxygen ) cylinder has: I assume I would need a booster to fill the RB oxygen tank from one?
Cheers,
Rohan.
Mr.X
April 6th, 2007, 06:43 AM
Cheers for that Chriso.
And now for a curved ball: anyone know what pressure your average medical oxygen (or welding grade oxygen ) cylinder has: I assume I would need a booster to fill the RB oxygen tank from one?
Cheers,
Rohan.
You will need a booster. We've used several small boosters - check out Golem gear, or archives on RB world. The typical full fill is roughly 2000 psi - 140/150 bar if that. I typically take 3 - 3 liter bottles with me on any expedition where I cannot get my own personal oxygen for 2-3 days.
X