CO2 recharging

Post by Bart Goddard
I have a small CO2 tank which fits inside my keggorator. I
have a much larger one I use for initial carbonation. I'm
wondering why a guy couldn't recharge the small tank off the
large tank. Could I just connect the outputs with some plastic
tubing and let the pressure equalize? Or is there a check valve
or something in the way?

CO2 tanks operate at high pressure, around 800 PSI or so. Also,
they are filled with about 33% liquid CO2 for the weight they are
sized for.. so a 5lb CO2 tank has 5lbs of liquid CO2 in it.
If you were to fill past the weight for the tank, it could be
dangerous. There is typically a safety burst disc on the side of
the on/off valve, but why risk a dangerous situation by filling an
unknown amount of liquid.

What you need to do is get a CO2 fill station, like for paintball
and have a siphon tube installed in the larger (say 20lb) tank.
Once you have this, you can then fill to weight using a scale. I do
this for my paintball tanks, which I then use to serve beer. I also
half fill 5lb CO2 tanks off the 20lb tank..

Play it safe with high pressure gages.

--
Dan

Bart Goddard

2013-03-23 00:40:16 UTC

CO2 tanks operate at high pressure, around 800 PSI or so. Also,
they are filled with about 33% liquid CO2 for the weight they are
sized for.. so a 5lb CO2 tank has 5lbs of liquid CO2 in it.
If you were to fill past the weight for the tank, it could be
dangerous. There is typically a safety burst disc on the side of
the on/off valve, but why risk a dangerous situation by filling an
unknown amount of liquid.
What you need to do is get a CO2 fill station, like for paintball
and have a siphon tube installed in the larger (say 20lb) tank.
Once you have this, you can then fill to weight using a scale. I do
this for my paintball tanks, which I then use to serve beer. I also
half fill 5lb CO2 tanks off the 20lb tank..
Play it safe with high pressure gages.

Stoopid physics.

Dan Logcher

2013-03-23 02:16:46 UTC

Post by Bart Goddard
Stoopid physics.

I know.. You can get fill station for about $40-$50, a scale for
about $25, and a siphon tube installed for like $20.. Then you're
good to go.

--
Dan

Bart Goddard

2013-03-23 03:42:16 UTC

Post by Bart Goddard
Stoopid physics.

I know.. You can get fill station for about $40-$50, a scale for
about $25, and a siphon tube installed for like $20.. Then you're
good to go.

Hmmm....and I already have a scale.... Still, physics is irredeemable.
That's why I went into math.

Tom Biasi

2013-03-25 02:16:33 UTC

Post by Bart Goddard
Stoopid physics.

I know.. You can get fill station for about $40-$50, a scale for
about $25, and a siphon tube installed for like $20.. Then you're
good to go.

Hmmm....and I already have a scale.... Still, physics is irredeemable.
That's why I went into math.

Screw it Bart. Do what the hell you want. What are the penalties for
breaking the laws of physics?

Bart Goddard

2013-03-25 03:31:17 UTC

$27491

Post by Bart Goddard
Stoopid physics.

I know.. You can get fill station for about $40-$50, a scale for
about $25, and a siphon tube installed for like $20.. Then you're
good to go.

Hmmm....and I already have a scale.... Still, physics is

irredeemable.

Post by Bart Goddard
That's why I went into math.

Screw it Bart. Do what the hell you want. What are the penalties for
breaking the laws of physics?

I just don't want to in advertently turn some new Boson loose
in the universe and, quite innocently, cause the destruction of
everything.

Dick Adams

2013-03-25 04:25:24 UTC

Post by Tom Biasi
Screw it Bart. Do what the hell you want. What are the penalties
for breaking the laws of physics?

I just don't want to in advertently turn some new Boson loose
in the universe and, quite innocently, cause the destruction of
everything.

Don't worry about causing the destruction of everything.
Just you and your house!

Tom Biasi

2013-03-25 12:04:10 UTC

Post by Bart Goddard
$27491

Post by Bart Goddard
Stoopid physics.

I know.. You can get fill station for about $40-$50, a scale for
about $25, and a siphon tube installed for like $20.. Then you're
good to go.

Hmmm....and I already have a scale.... Still, physics is

irredeemable.

Post by Bart Goddard
That's why I went into math.

Screw it Bart. Do what the hell you want. What are the penalties for
breaking the laws of physics?

I just don't want to in advertently turn some new Boson loose
in the universe and, quite innocently, cause the destruction of
everything.

As a kid I would often challenge the law of gravity. It sometimes didn't
work out well for me.

Dan Logcher

2013-03-25 13:47:38 UTC