Cubic Feet or Litre?

Outlaw · 24th April 2007, 21:20

can anyone give us the measurements?

i know that in Europe people tend to measure tanks by reffering to them in 3L, 5L or 10, 12, etc etc, where in the States they use cubic feet?

i am after some 3L tanks, preferably aluminiun, but with flat bottom. what is that in Cubic? can anyone suggest a brand? i have a meg if that helps.

Cheers

zmcave · 24th April 2007, 21:45

A 3L tank is something like a 19cu.ft LP.
I think there is a LP19 (maybe LP20) from faber (3.1 liters), but I think it has a round bottom.

An aluminum 19cu.ft at 3000 psi is something like 2.6 liters, it has a square bottom.

Remember that in the metric system tanks are named after their internal volume (at 1 atm), in the US they are named after their total volume at the rated pressure.

Zé.

SimonK · 24th April 2007, 22:00

You should be able to find something on the Luxfer site

Luxfer: SCUBA Cylinders: Specifications

Simon

rdmmdr · 25th April 2007, 01:46

the difference between Europe and the us in tank measurements. The eu measures the tank empty volume. that is where we get the two or three liter stuff from. in the us we measure a tank capacity at rated pressure ie 19 cf.

rick

Gilles · 25th April 2007, 05:00

Off the top, multiply your L by rated tank pressure (207(bar) for most Luxfers), then divide by 28.3 (L/cuft).

Your looking for 19's. I have these and 13's. I have grown to prefer the use of 13's (for single dive days).

lizardland · 25th April 2007, 08:14

Luxfer do a flat bottomed 3litre ally but it is quite long, not as long as a Faber 3 but certainly a bit longer than Heiser 3's which KISS divers use.

Cheers,

Stuart

fredrik · 25th April 2007, 09:04

Quote: (Originally Posted by lizardland)

Luxfer do a flat bottomed 3litre ally but it is quite long, not as long as a Faber 3 but certainly a bit longer than Heiser 3's which KISS divers use.

Cheers,

Stuart

which "some" KISS divers use.

Outlaw · 25th April 2007, 10:02

Quote: (Originally Posted by lizardland)

Luxfer do a flat bottomed 3litre ally but it is quite long, not as long as a Faber 3 but certainly a bit longer than Heiser 3's which KISS divers use.

Cheers,

Stuart

i already got some 3 L faber, which they have a round bottom, and also have some 3L aluminium with flat bottom alloy - catalina cylinders, but they are thicker in size makin my unit bigger which sort of gives me a harder time passing through tide places, ie, wrecks or caves.

Got any links to the ones you are mentioning? Also, do you think having flat bottom gives you any drag? thinking about scootering as well...

lizardland · 25th April 2007, 10:11

Quote: (Originally Posted by Outlaw)

i already got some 3 L faber, which they have a round bottom, and also have some 3L aluminium with flat bottom alloy - catalina cylinders, but they are thicker in size makin my unit bigger which sort of gives me a harder time passing through tide places, ie, wrecks or caves.

Got any links to the ones you are mentioning? Also, do you think having flat bottom gives you any drag? thinking about scootering as well...

The ones I have are UK spec Luxfers, not sure how they compare to Catalinas. If you look on the Luxfer website there is a table of key dimensions.

Cheers,

Stuart

24th April 2007, 21:20	#1 (permalink)
Outlaw In search of Law breaking Current Rebreather/s: Megalodon Other Rebreather/s: Join Date: Aug 2006 Location: Cyprus, Nicosia Posts: 627	Cubic Feet or Litre? can anyone give us the measurements? i know that in Europe people tend to measure tanks by reffering to them in 3L, 5L or 10, 12, etc etc, where in the States they use cubic feet? i am after some 3L tanks, preferably aluminiun, but with flat bottom. what is that in Cubic? can anyone suggest a brand? i have a meg if that helps. Cheers __________________ CMAS - IANTD - TDI Kamikazi Instrustor Trainer DIRRebreather Team Member ---------------------------- "Once an Outlaw, always an Outlaw"
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24th April 2007, 21:45	#2 (permalink)
zmcave www.rebreather.com.br Current Rebreather/s: Optima Dolphin Other Rebreather/s: Optima Dolphin Join Date: Apr 2006 Location: Brazil Posts: 176	Re: Cubic Feet or Litre? A 3L tank is something like a 19cu.ft LP. I think there is a LP19 (maybe LP20) from faber (3.1 liters), but I think it has a round bottom. An aluminum 19cu.ft at 3000 psi is something like 2.6 liters, it has a square bottom. Remember that in the metric system tanks are named after their internal volume (at 1 atm), in the US they are named after their total volume at the rated pressure. Zé.
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24th April 2007, 22:00	#3 (permalink)
SimonK Custom Title Allowed! Current Rebreather/s: Inspiration Classic Other Rebreather/s: Join Date: Oct 2005 Location: Cumbria UK Posts: 231	Re: Cubic Feet or Litre? You should be able to find something on the Luxfer site Luxfer: SCUBA Cylinders: Specifications Simon
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25th April 2007, 01:46	#4 (permalink)
rdmmdr designer of death Current Rebreather/s: Other CCR Other Rebreather/s: Other CCR Join Date: Mar 2006 Location: kerman,california Posts: 372	Re: Cubic Feet or Litre? the difference between Europe and the us in tank measurements. The eu measures the tank empty volume. that is where we get the two or three liter stuff from. in the us we measure a tank capacity at rated pressure ie 19 cf. rick
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25th April 2007, 05:00	#5 (permalink)
Gilles Worship the feminine Current Rebreather/s: Megalodon Other Rebreather/s: Join Date: Sep 2005 Location: Den Haag (Netherlands) Posts: 761	Re: Cubic Feet or Litre? Off the top, multiply your L by rated tank pressure (207(bar) for most Luxfers), then divide by 28.3 (L/cuft). Your looking for 19's. I have these and 13's. I have grown to prefer the use of 13's (for single dive days). __________________ Gilles http://www.dirrebreather.com Last edited by Gilles : 25th April 2007 at 05:02.
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25th April 2007, 08:14	#6 (permalink)
lizardland Yak Current Rebreather/s: MK 15.X Home Build Other Rebreather/s: Classic Kiss Home Build Join Date: Mar 2005 Location: North... Posts: 1,186	Re: Cubic Feet or Litre? Luxfer do a flat bottomed 3litre ally but it is quite long, not as long as a Faber 3 but certainly a bit longer than Heiser 3's which KISS divers use. Cheers, Stuart __________________ Can you imagine drifting along in the sea with your mouth open and a load of f***ing plankton going in? You'd like it, would you? www.westons-cider.co.uk Azerbaijani Association of Technical Divers Publicity Officer and Goat Wrangler
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25th April 2007, 09:04	#7 (permalink)
fredrik Rekodeko. Sweden Current Rebreather/s: Classic Kiss Other CCR Other Rebreather/s: Other CCR Join Date: Apr 2005 Location: Sweden Posts: 185	Re: Cubic Feet or Litre? Quote: (Originally Posted by lizardland) Luxfer do a flat bottomed 3litre ally but it is quite long, not as long as a Faber 3 but certainly a bit longer than Heiser 3's which KISS divers use. Cheers, Stuart which "some" KISS divers use. __________________ Fredrik Rekodeko, Sweden http://www.rekodeko.se
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25th April 2007, 10:02	#8 (permalink)
Outlaw In search of Law breaking Current Rebreather/s: Megalodon Other Rebreather/s: Join Date: Aug 2006 Location: Cyprus, Nicosia Posts: 627	Re: Cubic Feet or Litre? Quote: (Originally Posted by lizardland) Luxfer do a flat bottomed 3litre ally but it is quite long, not as long as a Faber 3 but certainly a bit longer than Heiser 3's which KISS divers use. Cheers, Stuart i already got some 3 L faber, which they have a round bottom, and also have some 3L aluminium with flat bottom alloy - catalina cylinders, but they are thicker in size makin my unit bigger which sort of gives me a harder time passing through tide places, ie, wrecks or caves. Got any links to the ones you are mentioning? Also, do you think having flat bottom gives you any drag? thinking about scootering as well... __________________ CMAS - IANTD - TDI Kamikazi Instrustor Trainer DIRRebreather Team Member ---------------------------- "Once an Outlaw, always an Outlaw"
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25th April 2007, 10:11	#9 (permalink)
lizardland Yak Current Rebreather/s: MK 15.X Home Build Other Rebreather/s: Classic Kiss Home Build Join Date: Mar 2005 Location: North... Posts: 1,186	Re: Cubic Feet or Litre? Quote: (Originally Posted by Outlaw) i already got some 3 L faber, which they have a round bottom, and also have some 3L aluminium with flat bottom alloy - catalina cylinders, but they are thicker in size makin my unit bigger which sort of gives me a harder time passing through tide places, ie, wrecks or caves. Got any links to the ones you are mentioning? Also, do you think having flat bottom gives you any drag? thinking about scootering as well... The ones I have are UK spec Luxfers, not sure how they compare to Catalinas. If you look on the Luxfer website there is a table of key dimensions. Cheers, Stuart __________________ Can you imagine drifting along in the sea with your mouth open and a load of f***ing plankton going in? You'd like it, would you? www.westons-cider.co.uk Azerbaijani Association of Technical Divers Publicity Officer and Goat Wrangler
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