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 52 users online :: 6 registered, 0 hidden and 46 guests


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

Registered users: Bing [Bot], Google [Bot], Google Adsense [Bot], Majestic-12 [Bot], MSNbot Media, Yahoo [Bot] based on users active over the past 5 minutes

The Team
Administrators
Global Moderators
global_moderators.png CS

Need better pilot valve

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

Unread postAuthor: jackssmirkingrevenge » Wed Apr 14, 2010 1:31 am

Matt_NZ wrote:I've heard of such paintball tanks exploding from oil in the fill valve.


There are definitely cases where this has happened when filling with oxygen, but when filled properly with compressed air or CO<sub>2</sub> this is highly unlikely.
  • 0

User avatar
jackssmirkingrevenge
Donating Member
Donating Member
 
Posts: 24225
Joined: Thu Mar 15, 2007 11:28 pm
Country: Holy See (Vatican City State) (va)
Reputation: 66

Unread postAuthor: Technician1002 » Wed Apr 14, 2010 1:55 am

Sudden application of high pressure air on an oil will create comprssion ignition of oil. This is very common and is used in every non glow plug diesel engine manufactured. Do be aware that this does happen. Compression ratios of 15:1 to 25:1 are typical in engines. The pressure needed to cause this can be as little as 250PSI. Filling a paintball tank to 1500 PSI is plenty of pressure to cause ignition if not done slowly and oil is present.

CO2 does not ignite oils. Air can. Oxygen will.

http://forums.paintball.com/showthread.php?t=28709
http://www.youtube.com/watch?v=OJFetCddyIY
http://www.billspaintball.com/vb3/showt ... hp?t=13189
  • 0

Last edited by Technician1002 on Wed Apr 14, 2010 2:09 am, edited 2 times in total.
User avatar
Technician1002
Chief of Staff
Chief of Staff
 
Posts: 5190
Joined: Sat Apr 04, 2009 11:10 am
Reputation: 14

Unread postAuthor: chinnerz » Wed Apr 14, 2010 2:03 am

hmm, learn something new every day..... but are those oils used in lubrication? exactly how worried should we be :shock:
  • 0

Image
User avatar
chinnerz
Lieutenant Colonel
Lieutenant Colonel
 
Posts: 470
Joined: Mon Dec 28, 2009 8:08 am
Reputation: 0

Unread postAuthor: Technician1002 » Wed Apr 14, 2010 2:10 am

If you are working with air over 200 PSI, use of oil should be a serious concern. Oiling common air tools is for under 150 PSI.
  • 0

User avatar
Technician1002
Chief of Staff
Chief of Staff
 
Posts: 5190
Joined: Sat Apr 04, 2009 11:10 am
Reputation: 14

Unread postAuthor: chinnerz » Wed Apr 14, 2010 2:23 am

i will be working with that kind of pressure soon..., what kind of lube would you use
  • 0

Image
User avatar
chinnerz
Lieutenant Colonel
Lieutenant Colonel
 
Posts: 470
Joined: Mon Dec 28, 2009 8:08 am
Reputation: 0

Unread postAuthor: Matt_NZ » Wed Apr 14, 2010 4:51 am

chinnerz wrote:i will be working with that kind of pressure soon..., what kind of lube would you use


I found this product click here

This is the best I could find. IMO these "oxygen rated lubricants are not cheap best to avoid oil, in your pneumatic guns."
  • 0

User avatar
Matt_NZ
Corporal
Corporal
 
Posts: 65
Joined: Fri Apr 09, 2010 4:42 am
Reputation: 0

Unread postAuthor: spudkpi » Thu Apr 15, 2010 9:26 pm

THis thread turned loopy haha :lol:
  • 0

User avatar
spudkpi
Sergeant First Class
Sergeant First Class
 
Posts: 135
Joined: Tue Aug 01, 2006 8:52 pm
Reputation: 0

Sponsored

Sponsor
 


Previous

Return to Pneumatic Cannon Discussion

Who is online

Registered users: Bing [Bot], Google [Bot], Google Adsense [Bot], Majestic-12 [Bot], MSNbot Media, Yahoo [Bot]

Reputation System ©'