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 73 users online :: 4 registered, 0 hidden and 69 guests


Most users ever online was 155 on Mon Aug 15, 2016 1:40 am

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

The Team
Administrators
Global Moderators
global_moderators.png CS

High pressure 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: Brian the brain » Thu Mar 20, 2008 5:11 pm

piston valve gets you all round best performance and flow.
Pretty basic to build too.

and once they are built, you are done, inlike with burst discs.

You would not want a burst disc on a 2" at 500 psi, trust me
even if you could find a suited material.
You need ABSOLUTE control.
  • 0

Gun Freak wrote:
Oh my friggin god stop being so awesome, that thing is pure kick ass. Most innovative and creative pneumatic that the files have ever come by!

Can't ask for a better compliment!!
User avatar
Brian the brain
Moderator
Moderator
 
Posts: 3494
Joined: Mon Dec 05, 2005 2:06 am
Location: Holland
Country: Netherlands (nl)
Reputation: 29

Unread postAuthor: DYI » Thu Mar 20, 2008 5:21 pm

You would not want a burst disc on a 2" at 500 psi, trust me
even if you could find a suited material.
You need ABSOLUTE control


It strikes me as funny that you just described my current setup exactly. As long as the disks are calibrated well enough, built consistently, and you know the burst pressure, it is quite feasible.
  • 0

Spudfiles' resident expert on all things that sail through the air at improbable speeds, trailing an incandescent wake of ionized air, dissociated polymers and metal oxides.
User avatar
DYI
Lieutenant General
Lieutenant General
 
Posts: 2861
Joined: Sat Jul 07, 2007 8:18 pm
Location: The People's Republic of Canuckistan
Country: Turks and Caicos Islands (tc)
Reputation: 9

Unread postAuthor: Brian the brain » Thu Mar 20, 2008 5:28 pm

So to make it feasable, you will need to calibrate your burst disc, build consistenlty and accurately know your burst pressure??

Wow...that does sound...quite...ehm yeah...


Go for the piston valve, buddy...Safer, straight to the point and easier to get it right.
  • 0

Gun Freak wrote:
Oh my friggin god stop being so awesome, that thing is pure kick ass. Most innovative and creative pneumatic that the files have ever come by!

Can't ask for a better compliment!!
User avatar
Brian the brain
Moderator
Moderator
 
Posts: 3494
Joined: Mon Dec 05, 2005 2:06 am
Location: Holland
Country: Netherlands (nl)
Reputation: 29

Unread postAuthor: pizlo » Thu Mar 20, 2008 6:33 pm

Agreed, jack you have more knowledge, common sense and, resources than most here.
  • 0

User avatar
pizlo
Brigadier General
Brigadier General
 
Posts: 783
Joined: Fri Dec 22, 2006 7:27 pm
Reputation: 0

Unread postAuthor: DYI » Thu Mar 20, 2008 7:46 pm

I didn't say that a TBD valve was practical, only that it was possible. I don't really like them that much myself...

And this may be a stupid question, but which Jack are you referring to Pizlo? Because JSR never posted on this thread.
  • 0

Last edited by DYI on Thu Mar 20, 2008 8:05 pm, edited 1 time in total.
Spudfiles' resident expert on all things that sail through the air at improbable speeds, trailing an incandescent wake of ionized air, dissociated polymers and metal oxides.
User avatar
DYI
Lieutenant General
Lieutenant General
 
Posts: 2861
Joined: Sat Jul 07, 2007 8:18 pm
Location: The People's Republic of Canuckistan
Country: Turks and Caicos Islands (tc)
Reputation: 9

Unread postAuthor: bigbob12345 » Thu Mar 20, 2008 8:02 pm

DYI wrote: I don't really like it that much myself...

I dont understand some people
Because Im lovin it
Image

Sorry for this pointless post
  • 0

User avatar
bigbob12345
Major General
Major General
 
Posts: 1516
Joined: Sat Dec 01, 2007 9:13 am
Location: Mercer Island,Washington
Reputation: 0

Unread postAuthor: Hydra » Fri Mar 21, 2008 2:59 am

Get a triggered burst disk. look it up on the wiki, they use a needle to pop it.
Otherwise use a piston valve like everyone else said. Make it out of something hard.. Like steel or have a good backing. I mean really good. Because 500PSI of force slamming back a piston made of solid, heavy steel must hurt...
  • 0

User avatar
Hydra
Sergeant First Class
Sergeant First Class
 
Posts: 131
Joined: Sat Mar 08, 2008 11:58 pm
Location: New South Wales, Australia
Reputation: 0

Sponsored

Sponsor
 


Previous

Return to Pneumatic Cannon Discussion

Who is online

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

Reputation System ©'