How to build a home CO2 carbonation system (the nozzle part)
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From: Elmo on 6 Apr 2010 15:44 On Sun, 4 Apr 2010 23:33:38 -0700, LM wrote: > Also, a quick call to the 800 Coca-Cola number confirms the 2-liter Coke > bottles are tested at 200 psi (amazing that they get this question often). I'm learning more and more how to build (and maintain for safety) a home carbonating system! Since C02 pressure is around 800 psi, I was wondering why my C02 gauge goes muuuch higher. I found out the Co2 pressure is logarithmically temperature related ... so at reasonably warm summer temperatures (over 90�F), the C02 tank pressure could climb over 1200psi! So, the first thing is to keep the tank covered from sunlight! Also keep the C02 tank vertical! This article explains why. http://www.csd.net/~cgadd/aqua/diy_co2rig.htm BTW, some people use C02 tanks to fill large off-road tires because a typical air tank (they say) doesn't hold enough air. Interesting: http://www.stu-offroad.com/recovery/co2/co2-1.htm
From: Elmo on 6 Apr 2010 15:55 On Sun, 04 Apr 2010 19:59:21 -0400, aemeijers wrote: > I know, it's an engineer thing- I wouldn't understand. Yes. I'm trying to learn as much as I can about the proper assembling & use of a home carbon dioxide soda fountain. Another thing I learned is that I should NOT have used that Teflon tape to seal all the joints in the regulators and hoses! :() According to this article (http://www.thekrib.com/Plants/CO2/bottle.html), Teflon "flows" and refuses to "wet" but it "shreds", thereby fouling the regulators. So far, I think I've made every mistake you can make! :( - I had the C02 bottle on its side - I pressurized the soda bottle to 150psi - I used Teflon tape to seal the high-pressure fittings - I used a tire chuck with an intact Schrader valve (instead of removing the stem of the Schrader valve) etc. But, I'm learning ... Any advice you can give is always welcome!
From: Bob F on 7 Apr 2010 11:18
Sjouke Burry wrote: > Elmo wrote: >> On Sun, 4 Apr 2010 18:05:47 +0000 (UTC), Elmo wrote: >> >>> http://www.truetex.com/carbonation.htm >> >> Given a co2 tank at 72�F has a pressure of 860 psi (as long as there >> is some liquid still in the tank) according to this nice C02 tank >> care article: >> http://www.reefscapes.net/articles/breefcase/co2_tanks.html >> >> I'm curious ... >> Q1: How do you know when you're "almost out" of liquid in a C02 >> tank??? > Shake it, dont stir. (according to J.B.) Weigh it, perhaps? |