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Pneumatic / CO2 megathread
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Glen
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Pneumatic / CO2 megathread

Turns out we don't yet have one! how bout 'dat

Question - Got my buffer tank drilled and tapped for a fitting, now there's cutting fluid and presumably shavings inside of it. What's an acceptable method for cleaning her out? Flushing with water and detergent?
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Post Tue Jul 23, 2013 7:43 pm 
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Philip
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I think I used methylated spirits to clean my tapped cylinder.

Do you have a G sized cylinder?
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Post Tue Jul 23, 2013 8:26 pm 
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Glen
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Good idea, i think i still have some metho Smile

And its a EE cylinder according to the bottle, the invoice has 22kg of CO2 on it though, pretty sure a EE is only 15... might have to check up on that!
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Post Tue Jul 23, 2013 8:38 pm 
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maddox



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Swarf is a problem every time.

My series of actions to clean out bits.

Compressed air to blow most swarf out of it.

Giving the object to my loving wife and she puts it in the dishwasher.

Assemble the setup without ram, and use the valve as "energy retainer", to vent it first with compressed air (have an adaptor that connects the setup with the compressor). If the setup has worked for 20 times in a row without a glitch, a main storagebottle is attached , and that's used up completely.

If the setup glitched in the compressed air or FP test faze, rince and repeat.

Post Tue Jul 23, 2013 9:12 pm 
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Glen
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What are you fellas using for lubricant in the rams/valves? Obviously freezing is an issue as is dieseling, so not keen to put any old grease in there lol.

Paintball oil?
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Post Tue Jul 30, 2013 10:49 pm 
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Philip
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CO2 is inert so you don't have to worry about ignition. I used an oil for a nail gun.
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Post Wed Jul 31, 2013 12:59 am 
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maddox



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Once in a blue moon I use a lick of very soft grease to lube the piston and rod. HDPE is selflubing. And it shows.

And dieseling. Never had any problem with that.
We're not using closed end pistons.

Post Wed Jul 31, 2013 2:25 am 
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Red.13



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This being the "megathread", does that mean any and all questions regarding CO2 should be posted here?

Q1: Those little 12g CO2 cartridges you get in puncture repair kits - are they a viable (big enough) CO2 source for a 3 minute battle?

Q2: The pressure that comes out of those things is like 70 Bar or more!! Most pneumatics work on 1 bar or about 150 PSI. Would something like the eBay item below be able to do the trick to get the pressure down to something workable?

http://www.ebay.com.au/itm/141026103654?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1438.l2649

Much appreciate any help in advance. Smile

Mark

Post Fri Aug 02, 2013 3:14 pm 
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Glen
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Sure! What class? beetleweights i think a 12g cartridge or two will be all you can fit in anyway.

That reg will probably only work up to 160psi input, the only other regulators i found, looking for high pressure stuff were the paintball ones. Pricey! ($80+)
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Post Fri Aug 02, 2013 4:49 pm 
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Red.13



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Yeah, I'm figuring beetle weight.

But since it has a tap on it, I figured it could handle big pressures on the inlet side but on the outlet the gauge only goes to 160...

Proving very hard to find any good source for this stuff. :/

Post Fri Aug 02, 2013 6:13 pm 
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maddox



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quote:
Originally posted by Red.13:
This being the "megathread", does that mean any and all questions regarding CO2 should be posted here?


It is a good idea in itself.

quote:
Q1: Those little 12g CO2 cartridges you get in puncture repair kits - are they a viable (big enough) CO2 source for a 3 minute battle?

12 gram CO2= 6 liters of CO2 @1 bar
So, amount of actions depends on your usage. Or in other words, ramsize and working pressure.


quote:
Q2: The pressure that comes out of those things is like 70 Bar or more!! Most pneumatics work on 1 bar or about 150 PSI. Would something like the eBay item below be able to do the trick to get the pressure down to something workable?

That reg won't like 800psi inletpressure.
And why bother regulating? Full pressure is a know technology these days.

Post Fri Aug 02, 2013 9:16 pm 
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Glen
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Saw this at the bike store today. A little adjustable regulator for the 12g Co2 cartridges. Could be good for a beetleweight!


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Post Sat Aug 10, 2013 3:39 pm 
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miles&Jules
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is that regulator metal....the one i had cracked /exploded cause it was just plastic. Sad
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Post Sun Aug 11, 2013 10:02 pm 
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Glen
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Ahoy,

Anybody got a source for the 4oz co2 bottles or just a good source for paintball bottles in general? Was buying my 20 and 12oz ones from a place in qld but they seemingly aren't stocking co2 gear anymore. Looks like most are shifting to nitrogen :<

Can buy from the US or china no worries but not sure whether customs would confiscate em?
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Post Mon May 04, 2015 2:15 pm 
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marto
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Look for Fish Tank ones for helping your plants grow. Was quite a few of those on ebay last time I looked.

Steve
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Post Mon May 04, 2015 2:32 pm 
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