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Old 09-08-2010, 08:54 AM   #11 (permalink)
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Default Re: New to CO2

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Originally Posted by darkoon View Post
Milwaukee is a good cheap start, but you'd want to swap out the needle valve for a high quality one, it is not stable, pressure changes every few days.
Does this mean Milwaukee make a complete unit? I assume this because I thought they made regulators and I could buy a regulator and a needle valve separately.
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Old 09-08-2010, 11:43 AM   #12 (permalink)
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Default Re: New to CO2

Here is a nice regulator you just have to remove the shut-off valve an attach a solenoid vale and needle valve , bubble counter. {or ask when placing your order to remove the shut-off valve}

http://www.micromatic.com/draft-keg-...s-pid-642.html

Now you would need a good solenoid valve Brass Bürkert 6011 Solenoid Valve : 00463938

http://www.barrreport.com/showthread...able-very-soon

Now for needle valve, there are a few good valves

http://www.swagelok.com/search/find_...s.aspx?RPR=100
http://www.idealvalve.com/

Bubble Counter ether your web site or on eBay get a JBJ Bubble Counter
Regulators ports are some time 1/4 inch , so you would need a 1/4 to 1/8 reduce nipple and solenoid valve and bubble counters can order in 1/8 port.

or just order from SuMo

http://www.sumoregulator.com/PremierLine.html

I have a Swagelok B-2MA2 that I like it's not shown on the web site it's special order paid $61.
Lot of people like the ideal needle valve they can list the model number for you.
This is what I put together My co2 regulator , brass nipple , solenoid valve , needle valve , bubble counter all are 1/8 port size.

Last edited by inkslinger; 10-04-2011 at 02:24 PM..
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Old 09-08-2010, 12:24 PM   #13 (permalink)
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Default Re: New to CO2

Quote:
Originally Posted by Gramazing View Post
Does this mean Milwaukee make a complete unit? I assume this because I thought they made regulators and I could buy a regulator and a needle valve separately.
they do sell complete unit, that is regulator+solenoid+bubble counter and needle valve
i have the exact same thing, but the needle valve is not steady, so i have to keep on checking and adjusting every few days. I am planning on getting a needle valve to replace the existing one.
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Old 09-08-2010, 01:40 PM   #14 (permalink)
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Default Re: New to CO2

Thanks a lot for all that info, I will have to wait until tomorrow to look at that in detail.

What is a port? The threaded coupling? And they are usually 1/8", but regulators are 1/4" ? Why wouldn't they be the same?

What makes my head spin is the way it seems that people get a regulator from one company, a needle valve from someone else and a solenoid valve from someone else. I mean, they're all components to assist the flow and control of gases, right? It surely can't be that CO2 delivery to a fish tank is such a specialized usage of this equipment that we have to go to 3 different manufacturers. If they all come from the same company then surely they would be more likely to work together better, be of comparable workmanship and would all refer back to the same phone number for any possible customer service issues.

Sorry if I sound like I'm whining , I'm an engineer myself, just in a completely different field and I usually hate to spread a job around different vendors.


Quote:
Originally Posted by inkslinger View Post
Here is a nice regulator you just have to remove the shut-off valve an attach a solenoid vale and needle valve , bubble counter. {or ask when placing your order to remove the shut-off valve}

http://www.micromatic.com/draft-keg-...s-pid-642.html

Now you would need a good solenoid valve Brass Bürkert 6011 Solenoid Valve : 00463938

http://www.barrreport.com/showthread...able-very-soon

Now for needle valve, there are a few good valves

http://www.swagelok.com/search/find_...s.aspx?RPR=100
http://www.idealvalve.com/

Bubble Counter ether your web site or on eBay get a JBJ Bubble Counter
Regulators ports are some time 1/4 inch , so you would need a 1/4 to 1/8 reduce nipple and solenoid valve and bubble counters can order in 1/8 port.

or just order from SuMo

http://www.sumoregulator.com/PremierLine.html

I have a Swagelok B-2MA2 that I like it's not shown on the web site it's special order paid $61.
Lot of people like the ideal needle valve they can list the model number for you.
This is what I put together My co2 regulator , brass nipple , solenoid valve , needle valve , bubble counter all are 1/8 port size.

Last edited by Gramazing; 09-08-2010 at 01:55 PM..
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Old 09-08-2010, 01:52 PM   #15 (permalink)
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Default Re: New to CO2

Hi Gramazing,

I use about 4 drops of reagent in my drop checkers, the remainder being 4.0 dKH distilled H20. 4 drops of Bromthymol Blue, which is slightly acid, is not toxic.
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Old 09-08-2010, 01:57 PM   #16 (permalink)
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Default Re: New to CO2

Heheh oops I edited that question out. Here it is again because I'm sure you all like answering all these dumb questions


Just as an aside, I was looking at those drop checkers, which look like a simple thing. What if you bumped it and knocked the suction cup off? I find suction cups are of very variable quality. If I spilt the reagent, would that poison the fish?
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Old 09-08-2010, 05:00 PM   #17 (permalink)
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Default Re: New to CO2

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Originally Posted by Gramazing View Post
I find suction cups are of very variable quality.
Quality simply means conformance to specifications. It is the design, materials, engineering, manufacturing process, etc that make a difference in products.

If there are suction cups that will do a good job underwater over a period of time, I sure haven't found any.
Quote:
Originally Posted by Gramazing View Post
If I spilt the reagent, would that poison the fish?
If you spilled a small amount of the Bromothymol Blue indicator solution in an aquarium, it wouldn't hurt anything. It is a very weak acid in solution. OSHA considers it nonhazardours when used properly. The LC50 with a Rainbow Trout is 12900-15300 ppm over a 96 hour time period.
MSDS: http://www.scholarchemistry.com/msds...hy_Bl_Soln.pdf
MSDS: http://fscimage.fishersci.com/msds/45429.htm

Last edited by Left C; 09-08-2010 at 05:13 PM..
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Old 09-08-2010, 05:33 PM   #18 (permalink)
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Default Re: New to CO2

"The LC50 with a Rainbow Trout is 12900-15300 ppm over a 96 hour time period." So I would have more luck with #12 hook and a trout worm?
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Old 09-08-2010, 06:16 PM   #19 (permalink)
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Default Re: New to CO2

Or a good trout fly.

That BBIC is very diluted, but it does a great job at what it does.

I was thinking about your being new to pressurized CO2 and I have a few thoughts. These folks gave you great information and I'm sure that it will take a little while to gasp it all.

There are some traits that make a CO2 regulator easy for a beginner to use.
  • easy to operate
  • doesn’t blow the low pressure gauge easily
  • easy to set the flow rate
  • holds the flow rate well

I would suggest an Azoo or JBJ regulator. The Azoo would be my first pick because it is cheaper and over the years, if there was a problem, JBJ’s support wasn’t as good as it needed to be.

Both of these regulators have a preset working pressure from the factory. This is one less thing for a beginner to worry about. It is very hard to blow their low pressure gauge because of this. Some regulators that have a working pressure adjustment can blow their low pressure gauge if you don’t follow the directions. This means turning the adjustment knob or handle counterclockwise until it is either almost screwed all the way off or the low pressure gauge reads near or at 0 psi before you ever open the valve on the CO2 cylinder. If you don’t do this the very first time that you turn it on or when you replace the CO2 cylinder, you will probably blow the gauge.

Ideal needle valves and Swagelok, Parker, Nupro and Whitey metering valves are easy to set and they will hold their settings. Some have a Vernier micrometer handle so that you can always return to a certain position. You have to use certain models of these valves because of our low flow rates and low pressures involved.

Both the Azoo and JBJ regulators would work much better with one of these excellent needle or metering valves. Both regulators have solenoids and only the JBJ has a bubble counter as stock. So, my suggestion for a beginner is to get one of these regulators and replace their stock needle valve with a good one.

The next step up would be to get one from Rex, GLA or SuMo. These all use good components. After this, you could build your own with your choice of parts.
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Old 09-09-2010, 03:20 AM   #20 (permalink)
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Default Re: New to CO2

Thanks again for that info, I will have to go away and have a good hard look at all this stuff. You said "So, my suggestion for a beginner is to get one of these regulators and replace their stock needle valve with a good one." Does this mean regulators usually come with a needle valve? I thought that was a completely separate component.
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