This site is supported by the advertisements on it, please disable your AdBlocker so we can continue to provide you with the quality content you expect.
  1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.
  2. Unfortunately for Photobucket users, things have changed in a big way as of June 26th they are rolling out a $399 per year subscription fee for those who want to hotlink images from Photobucket’s servers to display elsewhere.
    This does not mean it only affects this site, It now means that billions of images across the Web now display an error message instead of the image in question. :(
    Dismiss Notice

O2 regulator on CO2

Discussion in 'General Plant Topics' started by pfgrobler, Sep 24, 2005.

  1. pfgrobler

    pfgrobler Junior Poster

    Sep 24, 2005
    Likes Received:
    Is there any good reason not to use a O2 regulator on a CO2 cylinder ? I live is South Africa and CO2 regulators are +- $150 where as I can get O2 regulators for +- $60

    As I understand it O2 is at higher pressure, and more corrosive than CO2 and as such the regulator should be fine ? The only reasoning I can see not to use a O2 regulator is that the CO2 cools quite rapidly if the regulator is opened fully and that might cause a problem if the regulator gets to cold.

    Any one that is more knowledgeable know why I shouldn't

    Phillip Grobler
  2. gpontis

    gpontis Junior Poster

    Jan 24, 2005
    Likes Received:
    Re: O2 regulator on CO2

    I don't know of any safety issue but the first problem is getting the regaultor attached to the tank. The standard CO2 cylinder uses a different fitting than does an oxygen cylinder. As far as freezing the regulator, that should never happen since the flow rates of CO2 are exceptionally low.

    CO2 regulators are used for soda dispensers and beer. There is usually a good supply of them available from those applications and they are perfectly suitable. If you look around I am sure you can find one. The tricky part is getting a decent needle valve that is capable of regulating the low flow rate that you need. The kits that are made for aquaria usually combine a bubble counter, solenoid, and needle valve with the regulator so you get some value from those extras.

Share This Page