CO2 Vs. Scuba tank?
12-06-2003, 09:22 PM
#11
Guest
Posts: n/a
Re: CO2 Vs. Scuba tank?
Depends on what the tank is filled with. CO@ tanks are fuilled with just that
liquid co2. It expands to only a certain pressure. Scuba tanks are not filled
with liquid gas but with actual compressed breathing air. Generally compresed
to 2,000 - 4,500 psi depending on tank. If you use a scuba tank for truck use
with tires, air tools etc you have to have it filled at a place that can fill
to the 2k-3k psi. A standard compresor goes nowheres near that high. Generally
only places that can fill it are dive shops. You'll next have to find oen that
will fillthe tank. But general law they cannot fill a tank unless it is
certified and owned by a PADI certified diver. I ran into this problem when I
used to use scuba fill tanks for paintball guns.
Mr. Bill
at a 4 way stop.....the vehicle with the largest wheels has the right of way
My Jeep is not an SUV....your SUV is not a Jeep
liquid co2. It expands to only a certain pressure. Scuba tanks are not filled
with liquid gas but with actual compressed breathing air. Generally compresed
to 2,000 - 4,500 psi depending on tank. If you use a scuba tank for truck use
with tires, air tools etc you have to have it filled at a place that can fill
to the 2k-3k psi. A standard compresor goes nowheres near that high. Generally
only places that can fill it are dive shops. You'll next have to find oen that
will fillthe tank. But general law they cannot fill a tank unless it is
certified and owned by a PADI certified diver. I ran into this problem when I
used to use scuba fill tanks for paintball guns.
Mr. Bill
at a 4 way stop.....the vehicle with the largest wheels has the right of way
My Jeep is not an SUV....your SUV is not a Jeep
12-06-2003, 09:22 PM
#12
Guest
Posts: n/a
Re: CO2 Vs. Scuba tank?
Depends on what the tank is filled with. CO@ tanks are fuilled with just that
liquid co2. It expands to only a certain pressure. Scuba tanks are not filled
with liquid gas but with actual compressed breathing air. Generally compresed
to 2,000 - 4,500 psi depending on tank. If you use a scuba tank for truck use
with tires, air tools etc you have to have it filled at a place that can fill
to the 2k-3k psi. A standard compresor goes nowheres near that high. Generally
only places that can fill it are dive shops. You'll next have to find oen that
will fillthe tank. But general law they cannot fill a tank unless it is
certified and owned by a PADI certified diver. I ran into this problem when I
used to use scuba fill tanks for paintball guns.
Mr. Bill
at a 4 way stop.....the vehicle with the largest wheels has the right of way
My Jeep is not an SUV....your SUV is not a Jeep
liquid co2. It expands to only a certain pressure. Scuba tanks are not filled
with liquid gas but with actual compressed breathing air. Generally compresed
to 2,000 - 4,500 psi depending on tank. If you use a scuba tank for truck use
with tires, air tools etc you have to have it filled at a place that can fill
to the 2k-3k psi. A standard compresor goes nowheres near that high. Generally
only places that can fill it are dive shops. You'll next have to find oen that
will fillthe tank. But general law they cannot fill a tank unless it is
certified and owned by a PADI certified diver. I ran into this problem when I
used to use scuba fill tanks for paintball guns.
Mr. Bill
at a 4 way stop.....the vehicle with the largest wheels has the right of way
My Jeep is not an SUV....your SUV is not a Jeep
12-06-2003, 09:22 PM
#13
Guest
Posts: n/a
Re: CO2 Vs. Scuba tank?
Depends on what the tank is filled with. CO@ tanks are fuilled with just that
liquid co2. It expands to only a certain pressure. Scuba tanks are not filled
with liquid gas but with actual compressed breathing air. Generally compresed
to 2,000 - 4,500 psi depending on tank. If you use a scuba tank for truck use
with tires, air tools etc you have to have it filled at a place that can fill
to the 2k-3k psi. A standard compresor goes nowheres near that high. Generally
only places that can fill it are dive shops. You'll next have to find oen that
will fillthe tank. But general law they cannot fill a tank unless it is
certified and owned by a PADI certified diver. I ran into this problem when I
used to use scuba fill tanks for paintball guns.
Mr. Bill
at a 4 way stop.....the vehicle with the largest wheels has the right of way
My Jeep is not an SUV....your SUV is not a Jeep
liquid co2. It expands to only a certain pressure. Scuba tanks are not filled
with liquid gas but with actual compressed breathing air. Generally compresed
to 2,000 - 4,500 psi depending on tank. If you use a scuba tank for truck use
with tires, air tools etc you have to have it filled at a place that can fill
to the 2k-3k psi. A standard compresor goes nowheres near that high. Generally
only places that can fill it are dive shops. You'll next have to find oen that
will fillthe tank. But general law they cannot fill a tank unless it is
certified and owned by a PADI certified diver. I ran into this problem when I
used to use scuba fill tanks for paintball guns.
Mr. Bill
at a 4 way stop.....the vehicle with the largest wheels has the right of way
My Jeep is not an SUV....your SUV is not a Jeep
12-06-2003, 09:27 PM
#14
Guest
Posts: n/a
Re: CO2 Vs. Scuba tank?
Earle Horton did pass the time by typing:
> I don't know off hand whether CO2 enters a liquid state at room temperature
> and sufficient pressure, but I just got off the phone with my daughter who
> is a master's student in chemistry and she says it probably does. (She gave
> me a hard time too, like I should remember the physical characteristics of
> CO2 just because I have a physics degree.) If it goes liquid of course the
> ideal gas law doesn't apply and what the CO2 dealer is telling you is
> probably true. In that case go with the CO2. Note that this stuff is also
> dry and inert and has a lot of advantages over air because of that.
It does. Only at atmopheric pressures does it sublimate from solid to
gas without a liquid phase. Give it enough pressure and it becomes a liquid.
http://www.newton.dep.anl.gov/askasc.../chem99117.htm
--
DougW
> I don't know off hand whether CO2 enters a liquid state at room temperature
> and sufficient pressure, but I just got off the phone with my daughter who
> is a master's student in chemistry and she says it probably does. (She gave
> me a hard time too, like I should remember the physical characteristics of
> CO2 just because I have a physics degree.) If it goes liquid of course the
> ideal gas law doesn't apply and what the CO2 dealer is telling you is
> probably true. In that case go with the CO2. Note that this stuff is also
> dry and inert and has a lot of advantages over air because of that.
It does. Only at atmopheric pressures does it sublimate from solid to
gas without a liquid phase. Give it enough pressure and it becomes a liquid.
http://www.newton.dep.anl.gov/askasc.../chem99117.htm
--
DougW
12-06-2003, 09:27 PM
#15
Guest
Posts: n/a
Re: CO2 Vs. Scuba tank?
Earle Horton did pass the time by typing:
> I don't know off hand whether CO2 enters a liquid state at room temperature
> and sufficient pressure, but I just got off the phone with my daughter who
> is a master's student in chemistry and she says it probably does. (She gave
> me a hard time too, like I should remember the physical characteristics of
> CO2 just because I have a physics degree.) If it goes liquid of course the
> ideal gas law doesn't apply and what the CO2 dealer is telling you is
> probably true. In that case go with the CO2. Note that this stuff is also
> dry and inert and has a lot of advantages over air because of that.
It does. Only at atmopheric pressures does it sublimate from solid to
gas without a liquid phase. Give it enough pressure and it becomes a liquid.
http://www.newton.dep.anl.gov/askasc.../chem99117.htm
--
DougW
> I don't know off hand whether CO2 enters a liquid state at room temperature
> and sufficient pressure, but I just got off the phone with my daughter who
> is a master's student in chemistry and she says it probably does. (She gave
> me a hard time too, like I should remember the physical characteristics of
> CO2 just because I have a physics degree.) If it goes liquid of course the
> ideal gas law doesn't apply and what the CO2 dealer is telling you is
> probably true. In that case go with the CO2. Note that this stuff is also
> dry and inert and has a lot of advantages over air because of that.
It does. Only at atmopheric pressures does it sublimate from solid to
gas without a liquid phase. Give it enough pressure and it becomes a liquid.
http://www.newton.dep.anl.gov/askasc.../chem99117.htm
--
DougW
12-06-2003, 09:27 PM
#16
Guest
Posts: n/a
Re: CO2 Vs. Scuba tank?
Earle Horton did pass the time by typing:
> I don't know off hand whether CO2 enters a liquid state at room temperature
> and sufficient pressure, but I just got off the phone with my daughter who
> is a master's student in chemistry and she says it probably does. (She gave
> me a hard time too, like I should remember the physical characteristics of
> CO2 just because I have a physics degree.) If it goes liquid of course the
> ideal gas law doesn't apply and what the CO2 dealer is telling you is
> probably true. In that case go with the CO2. Note that this stuff is also
> dry and inert and has a lot of advantages over air because of that.
It does. Only at atmopheric pressures does it sublimate from solid to
gas without a liquid phase. Give it enough pressure and it becomes a liquid.
http://www.newton.dep.anl.gov/askasc.../chem99117.htm
--
DougW
> I don't know off hand whether CO2 enters a liquid state at room temperature
> and sufficient pressure, but I just got off the phone with my daughter who
> is a master's student in chemistry and she says it probably does. (She gave
> me a hard time too, like I should remember the physical characteristics of
> CO2 just because I have a physics degree.) If it goes liquid of course the
> ideal gas law doesn't apply and what the CO2 dealer is telling you is
> probably true. In that case go with the CO2. Note that this stuff is also
> dry and inert and has a lot of advantages over air because of that.
It does. Only at atmopheric pressures does it sublimate from solid to
gas without a liquid phase. Give it enough pressure and it becomes a liquid.
http://www.newton.dep.anl.gov/askasc.../chem99117.htm
--
DougW
12-06-2003, 11:49 PM
#17
Guest
Posts: n/a
Re: CO2 Vs. Scuba tank?
On Sat, 6 Dec 2003 16:20:52 -0800, "Paul Calman" <spam@trap.com> wrote:
>I already have a 40 ft^2 oxy cyl I can use for compressed air for tire
>filling. I've been reading sites about CO2 tanks, they hold 800 Psi, and and
>a scuba/air tank hold 2-3000 Psi.
>Does anyone know for sure how same-size tanks compare in fill-up counts?
Check out
http://www.monogramsinc.com/jeep/co2tire.htm
IMHO of you are going with a compressed gas solution for airing up tires CO2 is
the only way to go. Without going into all of the chemistry CO2 is stored as a
liquid and as such you can store much more gas than you can with compressed air.
Above about 800 psi CO2 turns into a liquid, so the pressure in the tank stays
constant until all of the liquid is used and then it, the pressure, drops
rapidly. I've been using CO2 for years and it will fill up your tires and run
air tools just fine,
BUT
again IMHO any compressed gas solution is a pain in the a$$ to maintain over
time. You have to pay attention to how much gas you have, and it always seems
to run out just when you need it. So now you have an empty tank, which means
you've got to go get the thing filled up again. That going to cost you time and
money. This is true with either CO2 or a scuba tank.
Like I said I've used and continue to use CO2, but installing a York air
compressor is high on the list of mods scheduled for my Jeep.
Dean
>I already have a 40 ft^2 oxy cyl I can use for compressed air for tire
>filling. I've been reading sites about CO2 tanks, they hold 800 Psi, and and
>a scuba/air tank hold 2-3000 Psi.
>Does anyone know for sure how same-size tanks compare in fill-up counts?
Check out
http://www.monogramsinc.com/jeep/co2tire.htm
IMHO of you are going with a compressed gas solution for airing up tires CO2 is
the only way to go. Without going into all of the chemistry CO2 is stored as a
liquid and as such you can store much more gas than you can with compressed air.
Above about 800 psi CO2 turns into a liquid, so the pressure in the tank stays
constant until all of the liquid is used and then it, the pressure, drops
rapidly. I've been using CO2 for years and it will fill up your tires and run
air tools just fine,
BUT
again IMHO any compressed gas solution is a pain in the a$$ to maintain over
time. You have to pay attention to how much gas you have, and it always seems
to run out just when you need it. So now you have an empty tank, which means
you've got to go get the thing filled up again. That going to cost you time and
money. This is true with either CO2 or a scuba tank.
Like I said I've used and continue to use CO2, but installing a York air
compressor is high on the list of mods scheduled for my Jeep.
Dean
12-06-2003, 11:49 PM
#18
Guest
Posts: n/a
Re: CO2 Vs. Scuba tank?
On Sat, 6 Dec 2003 16:20:52 -0800, "Paul Calman" <spam@trap.com> wrote:
>I already have a 40 ft^2 oxy cyl I can use for compressed air for tire
>filling. I've been reading sites about CO2 tanks, they hold 800 Psi, and and
>a scuba/air tank hold 2-3000 Psi.
>Does anyone know for sure how same-size tanks compare in fill-up counts?
Check out
http://www.monogramsinc.com/jeep/co2tire.htm
IMHO of you are going with a compressed gas solution for airing up tires CO2 is
the only way to go. Without going into all of the chemistry CO2 is stored as a
liquid and as such you can store much more gas than you can with compressed air.
Above about 800 psi CO2 turns into a liquid, so the pressure in the tank stays
constant until all of the liquid is used and then it, the pressure, drops
rapidly. I've been using CO2 for years and it will fill up your tires and run
air tools just fine,
BUT
again IMHO any compressed gas solution is a pain in the a$$ to maintain over
time. You have to pay attention to how much gas you have, and it always seems
to run out just when you need it. So now you have an empty tank, which means
you've got to go get the thing filled up again. That going to cost you time and
money. This is true with either CO2 or a scuba tank.
Like I said I've used and continue to use CO2, but installing a York air
compressor is high on the list of mods scheduled for my Jeep.
Dean
>I already have a 40 ft^2 oxy cyl I can use for compressed air for tire
>filling. I've been reading sites about CO2 tanks, they hold 800 Psi, and and
>a scuba/air tank hold 2-3000 Psi.
>Does anyone know for sure how same-size tanks compare in fill-up counts?
Check out
http://www.monogramsinc.com/jeep/co2tire.htm
IMHO of you are going with a compressed gas solution for airing up tires CO2 is
the only way to go. Without going into all of the chemistry CO2 is stored as a
liquid and as such you can store much more gas than you can with compressed air.
Above about 800 psi CO2 turns into a liquid, so the pressure in the tank stays
constant until all of the liquid is used and then it, the pressure, drops
rapidly. I've been using CO2 for years and it will fill up your tires and run
air tools just fine,
BUT
again IMHO any compressed gas solution is a pain in the a$$ to maintain over
time. You have to pay attention to how much gas you have, and it always seems
to run out just when you need it. So now you have an empty tank, which means
you've got to go get the thing filled up again. That going to cost you time and
money. This is true with either CO2 or a scuba tank.
Like I said I've used and continue to use CO2, but installing a York air
compressor is high on the list of mods scheduled for my Jeep.
Dean
12-06-2003, 11:49 PM
#19
Guest
Posts: n/a
Re: CO2 Vs. Scuba tank?
On Sat, 6 Dec 2003 16:20:52 -0800, "Paul Calman" <spam@trap.com> wrote:
>I already have a 40 ft^2 oxy cyl I can use for compressed air for tire
>filling. I've been reading sites about CO2 tanks, they hold 800 Psi, and and
>a scuba/air tank hold 2-3000 Psi.
>Does anyone know for sure how same-size tanks compare in fill-up counts?
Check out
http://www.monogramsinc.com/jeep/co2tire.htm
IMHO of you are going with a compressed gas solution for airing up tires CO2 is
the only way to go. Without going into all of the chemistry CO2 is stored as a
liquid and as such you can store much more gas than you can with compressed air.
Above about 800 psi CO2 turns into a liquid, so the pressure in the tank stays
constant until all of the liquid is used and then it, the pressure, drops
rapidly. I've been using CO2 for years and it will fill up your tires and run
air tools just fine,
BUT
again IMHO any compressed gas solution is a pain in the a$$ to maintain over
time. You have to pay attention to how much gas you have, and it always seems
to run out just when you need it. So now you have an empty tank, which means
you've got to go get the thing filled up again. That going to cost you time and
money. This is true with either CO2 or a scuba tank.
Like I said I've used and continue to use CO2, but installing a York air
compressor is high on the list of mods scheduled for my Jeep.
Dean
>I already have a 40 ft^2 oxy cyl I can use for compressed air for tire
>filling. I've been reading sites about CO2 tanks, they hold 800 Psi, and and
>a scuba/air tank hold 2-3000 Psi.
>Does anyone know for sure how same-size tanks compare in fill-up counts?
Check out
http://www.monogramsinc.com/jeep/co2tire.htm
IMHO of you are going with a compressed gas solution for airing up tires CO2 is
the only way to go. Without going into all of the chemistry CO2 is stored as a
liquid and as such you can store much more gas than you can with compressed air.
Above about 800 psi CO2 turns into a liquid, so the pressure in the tank stays
constant until all of the liquid is used and then it, the pressure, drops
rapidly. I've been using CO2 for years and it will fill up your tires and run
air tools just fine,
BUT
again IMHO any compressed gas solution is a pain in the a$$ to maintain over
time. You have to pay attention to how much gas you have, and it always seems
to run out just when you need it. So now you have an empty tank, which means
you've got to go get the thing filled up again. That going to cost you time and
money. This is true with either CO2 or a scuba tank.
Like I said I've used and continue to use CO2, but installing a York air
compressor is high on the list of mods scheduled for my Jeep.
Dean
12-07-2003, 03:03 PM
#20
Guest
Posts: n/a
Re: CO2 Vs. Scuba tank?
Paul Calman wrote:
> I already have a 40 ft^2 oxy cyl I can use for compressed air for tire
> filling. I've been reading sites about CO2 tanks, they hold 800 Psi, and and
> a scuba/air tank hold 2-3000 Psi.
> Does anyone know for sure how same-size tanks compare in fill-up counts?
>
Not sure, but I'm a scuba diver, and own a few tanks. Here's my take on
it, though:
I'm not so sure I want 3000 lbs of compressed ANYTHING potentially
bouncing around while offroading. 800 lbs "secured" makes me feel more
secure than 3000 lbs "secured".
You need an expensive regulator to bring that 3000 lbs to a usable 0-120
LB range.
But the big kicker is:
I need to present my C-card in order to fill my scuba tanks. No dive
shop as near as my local welding shop. No c-card needed at my local
welding shop.
If I had a Dive Shop closer than the welding shop, the situation might
tip the other way.
> I already have a 40 ft^2 oxy cyl I can use for compressed air for tire
> filling. I've been reading sites about CO2 tanks, they hold 800 Psi, and and
> a scuba/air tank hold 2-3000 Psi.
> Does anyone know for sure how same-size tanks compare in fill-up counts?
>
Not sure, but I'm a scuba diver, and own a few tanks. Here's my take on
it, though:
I'm not so sure I want 3000 lbs of compressed ANYTHING potentially
bouncing around while offroading. 800 lbs "secured" makes me feel more
secure than 3000 lbs "secured".
You need an expensive regulator to bring that 3000 lbs to a usable 0-120
LB range.
But the big kicker is:
I need to present my C-card in order to fill my scuba tanks. No dive
shop as near as my local welding shop. No c-card needed at my local
welding shop.
If I had a Dive Shop closer than the welding shop, the situation might
tip the other way.