CO2 tank & regulator for onboard "air" - Off-Road Forums & Discussion Groups
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post #1 of (permalink) Old 10-26-2004, 05:21 PM Thread Starter
 
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CO2 tank & regulator for onboard \"air\"

I bought a used CO2 tank and regulator for onboard "air" from a guy off ebay some time ago. Unfortunately, the regulator has an open port that looks like 1/4 inch NPT except that the threads are reversed.

I have been to every place in town that sells pipe and air fittings and no one has the plug I need, nor do they know where to get one.

Does anyone here know where I could get such a plug? Again, it looks like 1/4 inch NPT threads except they are reversed.

thanks,
James
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post #2 of (permalink) Old 10-26-2004, 05:43 PM
 
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Re: CO2 tank & regulator for onboard \"air\"

I am guessing but more than likely a welding shop will carry the conector.but since they are threaded a not normal thread. I am also going to guess that it is a regulator for somthing like welding. they regulate the flow and the psi is realy lowno matter where the flow is set. I can stick my finger over the end of my welder one and stop the flow quite easily.
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post #3 of (permalink) Old 10-26-2004, 07:43 PM
 
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Re: CO2 tank & regulator for onboard \"air\"

</font><blockquote><font class="small">In reply to:</font><hr />
1/4 inch NPT threads except they are reversed

[/ QUOTE ]

What you have is a gas fitting. Threads are always reversed on them. Try a propane shop, natural gas supplier, or a fire equipment supplier.
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post #4 of (permalink) Old 10-26-2004, 08:07 PM
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Re: CO2 tank & regulator for onboard \"air\"

being that its a co2 tank i would think that any paint ball supply place would be able to help ya out
just a thought but i did a google search and came up with this
[url=http://www.doropaintball.com/AB1038101EQuick/shopexd.asp?id=5090]
if you go to thier home page and look up air systems they have a bunch of adapters there
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post #5 of (permalink) Old 10-26-2004, 09:24 PM
 
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Re: CO2 tank & regulator for onboard \"air\"

is the hole your trying to plug the hole for the guage?
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post #6 of (permalink) Old 10-27-2004, 03:57 AM
 
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Re: CO2 tank & regulator for onboard \"air\"

Go to your local welding supply. They should have the fitting you need. A guy I wheel with did the same thing and has CO2 put in it once per year, and that is enough for airing up a lot of tires.
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post #7 of (permalink) Old 10-27-2004, 04:05 PM Thread Starter
 
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Re: CO2 tank & regulator for onboard \"air\"

Its the port for the high pressure guage
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post #8 of (permalink) Old 11-04-2004, 01:41 PM
 
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Re: CO2 tank & regulator for onboard \"air\"

> Its the port for the high pressure guage

What do you mean? Are you saying that the high pressure gauge is missing?

Phil
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post #9 of (permalink) Old 11-05-2004, 03:12 PM Thread Starter
 
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Re: CO2 tank & regulator for onboard \"air\"

Yep, the high pressure guage is missing. I would rather plug the opening than replace the guage; one thing less to break on the trail. I think its possible to get a rough estimate of how much CO2 is in the tank by weight.

later,
James
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post #10 of (permalink) Old 11-05-2004, 05:38 PM
 
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Re: CO2 tank & regulator for onboard \"air\"

James,

Forget the gauge, just plug the hole. The CO2 gas pressure is fairly constant but varies with temperature (800 to about 1400 psi) and will remain that way until you run out of liquid CO2 in the tank. You are right about the weight to judge how much you have left.

If you haven't already, just get a 150psi regulator and female quick fitting for standard air lines, that's it. You don't need to know the pressure. Works awesome for tires and air tools and does double duty for the MIG.
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