Login    Register
User Information
Username:
Password:
We are a free and open
community, all are welcome.
Click here to Register
Sponsored
Who is online

In total there are 70 users online :: 6 registered, 0 hidden and 64 guests


Most users ever online was 218 on Wed Dec 07, 2016 6:58 pm

Registered users: Bing [Bot], Google [Bot], Google Adsense [Bot], MCRKilljoy, MSNbot Media, Yahoo [Bot] based on users active over the past 5 minutes

The Team
Administrators
Global Moderators
global_moderators.png CS

Temperature dropage of compressed air

Post questions and info about pneumatic (compressed gas) powered cannons here. This includes discussion about valves, pipe types, compressors, alternate gas setups, and anything else relevant.
Sponsored 
  • Author
    Message

Temperature dropage of compressed air

Unread postAuthor: hkrivell » Mon Jul 30, 2007 2:18 pm

I'm having problems with Co2 and nitrogen compromising the durability of PVC 40 and 80.

Does anyone know of a compressed air that does not cause a massive temperature drop besides hand pumping the chamber?
  • 0


hkrivell
Private
Private
 
Posts: 16
Joined: Mon Jun 18, 2007 11:27 pm
Reputation: 0

Unread postAuthor: origin unknown » Mon Jul 30, 2007 2:27 pm

I am not completely sure, but I think helium might be the gas you are looking for because it warms up as it expands.
  • 0

Last edited by origin unknown on Mon Jul 30, 2007 2:28 pm, edited 1 time in total.
Ecclesiastes 1:9 - What has been will be again, what has been done will be done again; there is nothing new under the sun.
User avatar
origin unknown
Colonel
Colonel
 
Posts: 533
Joined: Sat Apr 14, 2007 2:38 pm
Location: Searcy, Arkansas (college) and Memphis, TN (hometown)
Reputation: 0

Unread postAuthor: paintballuh » Mon Jul 30, 2007 2:28 pm

you could always use an air compressor, or get one of those big tanks that you fill with an air compressor that people use to power pneumatic tools/blow guns

EDIT: nitrogen doesnt experience a temperature change when compressed. it may heat up a little, but not that much, i play xball, i should know :P
  • 0

Last edited by paintballuh on Mon Jul 30, 2007 2:31 pm, edited 1 time in total.
User avatar
paintballuh
Private First Class
Private First Class
 
Posts: 27
Joined: Wed Dec 14, 2005 7:39 pm
Reputation: 0

Unread postAuthor: iPaintball » Mon Jul 30, 2007 2:31 pm

Air compressors work just fine.

paintballuh, is that an Ion in your pic?
  • 0

Summer Projects:
CO2 tank hybrid: Gotta fix the meter :(
Cane gun: Needs a pilot/fill setup
1.5" piston valve gun: Almost done
User avatar
iPaintball
Colonel
Colonel
 
Posts: 695
Joined: Sun Mar 04, 2007 8:37 pm
Reputation: 0

Unread postAuthor: hkrivell » Mon Jul 30, 2007 3:03 pm

one of my friends uses Co2 and Propane to fill his chamber. His chamber shattered like glass when he dropped it. is there anything else besides overpressure that would cause a chamber to shatter?

The chamber was unfilled when it shattered.
  • 0


hkrivell
Private
Private
 
Posts: 16
Joined: Mon Jun 18, 2007 11:27 pm
Reputation: 0

Unread postAuthor: potatoflinger » Mon Jul 30, 2007 3:09 pm

Co2 can make pvc brittle (pvc gets brittle when it gets cold).
  • 0

User avatar
potatoflinger
Brigadier General
Brigadier General
 
Posts: 1136
Joined: Thu Nov 02, 2006 3:26 pm
Location: Maryland
Reputation: 1

Re: Temperature dropage of compressed air

Unread postAuthor: frankrede » Mon Jul 30, 2007 3:41 pm

hkrivell wrote:I'm having problems with Co2 and nitrogen compromising the durability of PVC 40 and 80.

Does anyone know of a compressed air that does not cause a massive temperature drop besides hand pumping the chamber?
Make sure your bottle is facing upright to prevent liquid co2 from entering your chamber, I have seen co2 used without fail in pvc before, and inject slowly, 10 psi every 3 seconds should help keep the temperature from getting too low too quick.
  • 0

Current project: Afghanistan deployment
User avatar
frankrede
Lieutenant General
Lieutenant General
 
Posts: 3220
Joined: Thu Jul 20, 2006 9:47 pm
Reputation: 0

Re: Temperature dropage of compressed air

Sponsored

Sponsor
 


Unread postAuthor: hkrivell » Mon Jul 30, 2007 6:39 pm

paintballuh wrote:EDIT: nitrogen doesnt experience a temperature change when compressed. it may heat up a little, but not that much, i play xball, i should know :P


What about when expanding or when being transfered from nitro tank to chamber?
  • 0


hkrivell
Private
Private
 
Posts: 16
Joined: Mon Jun 18, 2007 11:27 pm
Reputation: 0

Return to Pneumatic Cannon Discussion

Who is online

Registered users: Bing [Bot], Google [Bot], Google Adsense [Bot], MCRKilljoy, MSNbot Media, Yahoo [Bot]

Reputation System ©'