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Old 10-08-2008, 08:14 PM   #1
jcole
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I'm in the process of converting an old fridge I have to store two kegs with mounted faucets.

I have room for the CO2 on the inside and would actually like to keep it on the inside, unless there is a good reason not to.

Thoughts?

thanks,
John
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Old 10-08-2008, 08:17 PM   #2
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it is fine to keep it on the inside. lots of people do. the tank's guages reading will be off though
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Old 10-08-2008, 08:24 PM   #3
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If you have room inside is fine. I have mine outside due to space issues.

 
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Old 10-08-2008, 08:35 PM   #4
jcole
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Ok, cool. I have room for the cylinder, but not an extra keg.
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Old 10-08-2008, 08:45 PM   #5
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Quote:
Originally Posted by Berserker_Brew View Post
it is fine to keep it on the inside. lots of people do. the tank's guages reading will be off though
How will it be off?

Pressure decreases as temperature decreases. That's just physics...

Or am I over thinking your post?

 
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Old 10-08-2008, 08:49 PM   #6
jcole
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Quote:
Originally Posted by lilzaphod View Post
How will it be off?

Pressure decreases as temperature decreases. That's just physics...

Or am I over thinking your post?
That's kind of what I was getting at and wondering in the original post.

Its easier for me to keep it inside, but if I'm going to lose a lot of pressure or suffer other negative effects, then I would consider going to the trouble of mounting it outside.
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Old 10-08-2008, 08:55 PM   #7
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You will loose pressure when it's in the fridge. But the amount of CO2 in the tank will not change.

 
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Old 10-08-2008, 10:02 PM   #8
MoRoToRiUm
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You get the same amount of gas, but the gauge won't be right until you're just about out of gas (my experience anyway).

 
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Old 10-08-2008, 10:26 PM   #9
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Quote:
Originally Posted by MoRoToRiUm View Post
You get the same amount of gas, but the gauge won't be right until you're just about out of gas (my experience anyway).
How is it "off" though?

It shows lower pressure? It shows higher pressure(doubtful)?

Unless you have a mechanical issue with the gauge, you should have the pressure you have, and it would be off by the offset in
PV=RT (Ideal gas law), I believe.

If you wanted the "same" pressure cold as what the tank is when you fill it, you would need to fill the tank at the same temperature as you hold it at in the fridge. Otherwise, the temp change will lower the pressure slightly.

Now if the gauge is acting/reading funky, that may be a mechanical thing, but I'm not versed enough on this equipment to say what or why.

But the gas itself isn't doing much except contracting a little, and so you will lose some psi in the tank. And I would have to think it's miniscule....

 
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Old 10-08-2008, 11:45 PM   #10
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Quote:
Originally Posted by lilzaphod View Post
How is it "off" though?

It shows lower pressure? It shows higher pressure(doubtful)?

Unless you have a mechanical issue with the gauge, you should have the pressure you have, and it would be off by the offset in
PV=RT (Ideal gas law), I believe.

If you wanted the "same" pressure cold as what the tank is when you fill it, you would need to fill the tank at the same temperature as you hold it at in the fridge. Otherwise, the temp change will lower the pressure slightly.

Now if the gauge is acting/reading funky, that may be a mechanical thing, but I'm not versed enough on this equipment to say what or why.

But the gas itself isn't doing much except contracting a little, and so you will lose some psi in the tank. And I would have to think it's miniscule....
How do you think the "amount in the tank" gauge works?

Pressure.

If the gauge is calibrated for room temperature and you have it 40 degrees, the apparent pressure is lower, so the gauge will be off.

 
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