CO2 Valves - The Planted Tank Forum
 
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post #1 of 6 (permalink) Old 08-25-2011, 03:45 PM Thread Starter
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CO2 Valves

I've been lurking around e bay deciding which regulator I want to buy and have been noticing regulators with 'magnetic valves'. Is that something I need to stay away from or would it still work, or do I need one that specifically has a needle valve, or is it the same thing?
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post #2 of 6 (permalink) Old 08-25-2011, 04:15 PM
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You want a gas regulator, ss diaphragm, low pressure gauge between 0-200. If you can find one with 0-100 that's even better. Stay away from acetylene and corrosive gases regulators. If the corrosive gas regulator is new, then it's fine.

Chances are you won't find one with a needle valve on it, and if you do it won't be the kind we need. Dual stage regulators have a bump in the back, single stage are usually flat.

You'll also need a cga inlet and nut. The cga code will tell you what gas the regulator was made for. You can change out most of them for a co2 inlet/nut which is cga 320.


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post #3 of 6 (permalink) Old 08-25-2011, 05:03 PM
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"Magnetic valve" = "Solenoid valve", which is what lets you turn the CO2 on and off with a timer or pH controller.

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post #4 of 6 (permalink) Old 08-25-2011, 05:49 PM Thread Starter
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Ok good info, thanks both of you.
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post #5 of 6 (permalink) Old 08-26-2011, 06:05 AM
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You absolutely need to add a good needle valve, solenoid is optional, but highly recommended by yours truly.

-Bill



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post #6 of 6 (permalink) Old 08-26-2011, 01:32 PM Thread Starter
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I'm prolly going to buy one that already has a needle valve, but I don't know how to tell if it's any good lol. Definitely gettin a solenoid to make my life easier
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