mcarterbrown.com  

Ask The Experts You ask the tough questions

Reply
 
Thread Tools Search this Thread
Old 10-12-2006, 03:56 AM   #11 (permalink)
I drive the boat.
 
Tugboater203's Avatar
 
Join Date: Mar 2006
Location: Oxford,CT
Send a message via Yahoo to Tugboater203

I askeds this very same question a while back. Here are the answers I got.

Co2 in carbon fiber?


Tug

it was burried on page 8
__________________
Paintball is fun!
What others think of me Tugs Feedback
Tugboater203 is offline   Reply With Quote
Old 10-12-2006, 11:58 AM   #12 (permalink)
Post Whore
 
aqua_scummm's Avatar
 
Join Date: Apr 2006
Location: Los Angeles

As you know HPA tanks are rated for either 3000, 4500, or 5000 PSI. CO2, regardless of how full it is (for the most part- overfilling is a concern), is always the same pressure (as long as the temperature is the same). At room temperature, it's about 850 psi. At 120F, with a CO2 tank that is 100% full (which you should never, ever do, 75%-80% is a proper fill), the pressure is still below 2k.

So will it work? Yes, the tank will hold it. However, if your regulator is not up to par (and most aren't designed for holding CO2, which can cause seals to break if liquid touches them and expands), then you can have a bad situation.

All in all, it is possible, sounds like it's been done often enough, but I wouldn't do it unless I knew my reg VERY well
__________________
Got an Outlaw game in the LA or San Francisco area? Please PM me!

aqua_scummm is offline   Reply With Quote
Old 10-12-2006, 03:02 PM   #13 (permalink)
MCB Member
 
Walker's Avatar
 
Join Date: Apr 2006
Location: Spokane, WA

No regulator involved.... Both of mine, from SmartParts, had pin valves....


Walker

__________________________________________________ ____________
Quote:
Originally Posted by aqua_scummm View Post
As you know HPA tanks are rated for either 3000, 4500, or 5000 PSI. CO2, regardless of how full it is (for the most part- overfilling is a concern), is always the same pressure (as long as the temperature is the same). At room temperature, it's about 850 psi. At 120F, with a CO2 tank that is 100% full (which you should never, ever do, 75%-80% is a proper fill), the pressure is still below 2k.

So will it work? Yes, the tank will hold it. However, if your regulator is not up to par (and most aren't designed for holding CO2, which can cause seals to break if liquid touches them and expands), then you can have a bad situation.

All in all, it is possible, sounds like it's been done often enough, but I wouldn't do it unless I knew my reg VERY well
__________________
Quote:
If you can't take the heat, then get out from under the bus!
Member of the Old Farts Paintball Players Association (OFPPA)
"Where You Wrap Up the Day, With Beer and Bengay!"

Nelson Owner's Group
My Feedback!
FBM Cocker Body 4-Sale
- Pending Trade - MicroMag 4-Sale
Walker is offline   Reply With Quote
Old 10-12-2006, 03:21 PM   #14 (permalink)
Post Whore
 
aqua_scummm's Avatar
 
Join Date: Apr 2006
Location: Los Angeles

Well then I see no issue, but if something goes wrong, it won't look good.

Why not just spend the $20 on a new CO2 tank?
__________________
Got an Outlaw game in the LA or San Francisco area? Please PM me!

aqua_scummm is offline   Reply With Quote
Old 10-12-2006, 03:33 PM   #15 (permalink)
Seasoned Member
 
P4p3Rc1iP's Avatar
 
Join Date: Aug 2006
Location: Leeuwarden, The Netherlands

Yes, you can fill a HPA tank with CO2, but once you've done it, it can no longer be used for HPA.

Due to the cold temperatures of liquid CO2, there is a chance the aluminum (yes, a carbon fiber wrapped tank has an aluminum inner shell, the carbon fibre is just there to give it strength while remaining lightweight.) inside the tank will shrink too much causing it to seperate from the carbon fibre. This greatly reduces the tank's strength so it can no longer be filled with HPA (Which is at a much higher pressure than CO2! 3000+ PSI compared to CO2's <1200 PSI).

So is it worth to fill up an expensive HPA tank with CO2 making it useless for anything else? I'd say no...
__________________
P4p3Rc1iP is offline   Reply With Quote
Old 10-12-2006, 03:47 PM   #16 (permalink)
Thick
 
HurtCow's Avatar
 
Join Date: Mar 2006
Location: Rocklin, CA
Send a message via AIM to HurtCow

CCM Fan
AKA Fan
Palmers Fan
Quote:
Originally Posted by aqua_scummm View Post
Why not just spend the $20 on a new CO2 tank?
Because a hpa tank will hold much more co2 for gas hogs like Shockers and Vectors.
__________________
Everybody loves me!

If I hurt your feelings or otherwise offended you, click here.
HurtCow is offline   Reply With Quote
Old 10-12-2006, 03:55 PM   #17 (permalink)
Post Whore
 
aqua_scummm's Avatar
 
Join Date: Apr 2006
Location: Los Angeles

ohhh, makes sense.
__________________
Got an Outlaw game in the LA or San Francisco area? Please PM me!

aqua_scummm is offline   Reply With Quote
Old 10-12-2006, 03:58 PM   #18 (permalink)
Corpses Eaten: 0
 
Chappy's Avatar
 
Join Date: Apr 2006
Location: Secretly policing you...

Fan of EMR
Quote:
Originally Posted by P4p3Rc1iP View Post
Yes, you can fill a HPA tank with CO2, but once you've done it, it can no longer be used for HPA.

Due to the cold temperatures of liquid CO2, there is a chance the aluminum (yes, a carbon fiber wrapped tank has an aluminum inner shell, the carbon fibre is just there to give it strength while remaining lightweight.) inside the tank will shrink too much causing it to seperate from the carbon fibre. This greatly reduces the tank's strength so it can no longer be filled with HPA (Which is at a much higher pressure than CO2! 3000+ PSI compared to CO2's <1200 PSI).

So is it worth to fill up an expensive HPA tank with CO2 making it useless for anything else? I'd say no...
I'm pretty sure it was proven that this effect was negligable, and caused no damage. But that's just heresay(as is most of the info in this thread, I suppose)
__________________

"I wanna be as big as a mountain.
I wanna fly as high as the sun.
I wanna know what the rent's like in heaven.
I wanna know
Where the river goes..."
STP

My Feedback: http://www.mcarterbrown.com/forums/s...3932#post13932
Chappy is online now   Reply With Quote
Old 10-12-2006, 04:03 PM   #19 (permalink)
Seasoned Member
 
P4p3Rc1iP's Avatar
 
Join Date: Aug 2006
Location: Leeuwarden, The Netherlands

Ohw...

Well, it's just waht I was always tought.

Better safe than sorry...
__________________
P4p3Rc1iP is offline   Reply With Quote
Old 10-12-2006, 04:14 PM   #20 (permalink)
Corpses Eaten: 0
 
Chappy's Avatar
 
Join Date: Apr 2006
Location: Secretly policing you...

Fan of EMR
Quote:
Originally Posted by P4p3Rc1iP View Post
Better safe than sorry...
Definitely. Probably best to get it rehydroed at least before using HPA again.
__________________

"I wanna be as big as a mountain.
I wanna fly as high as the sun.
I wanna know what the rent's like in heaven.
I wanna know
Where the river goes..."
STP

My Feedback: http://www.mcarterbrown.com/forums/s...3932#post13932
Chappy is online now   Reply With Quote
Reply

  mcarterbrown.com » Paintball » Ask The Experts

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

Forum Jump


All times are GMT -4. The time now is 08:07 PM.


Powered by vBulletin® Version 3.8.6
Copyright ©2000 - 2016, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO
© MCB Network LLC