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 81 users online :: 2 registered, 0 hidden and 79 guests


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

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

The Team
Administrators
Global Moderators
global_moderators.png CS

20psi metered propane

Post questions and info about combustion (flammable vapor) powered cannons here. This includes discussion about fuels, ratios, ignition systems, safety, and anything else relevant.
Sponsored 
  • Author
    Message

Unread postAuthor: MortarArmy » Mon Oct 15, 2007 12:10 am

Canadian Spudder wrote:Darn, so the camping regulators done work? :( I am about to build my 1st propane meter and I was ready to use a salvaged one. Looks like I'm gonna have to buy a torch head.


you can use it, you can use it just fine. there's nothing wrong with it, you just have to have a much bigger propane meter pipe to compensate for the lower PSI.

right now i have nearly 9" of .5" pipe for my meter, seems pretty big, and it would get a little ungodly if i stepped up to a bigger gun. It actually works pretty well since it is regulated, but i have the 2 ball valves with it anyways. Kinda works like a safety, 3 valves between my chamber and the tank. Makes it hard to overfuel as long as you're paying attention and the valves are closed.
  • 0


MortarArmy
Private
Private
 
Posts: 22
Joined: Sun Sep 16, 2007 11:45 pm
Reputation: 0

Unread postAuthor: Dornep » Mon Oct 15, 2007 9:15 pm

Or you can inject multiple shots of propane instead of enlarging the meter pipe. If you need, say.. 60PSI in your meter you can inject three 20PSI shots of propane..

Doing it that way is helpful if you have a large chamber. My newest combustion has a chamber volume of 462ci. With my 23.6ml fuel meter I have to inject two shots at 60PSI to get the required 180PSI of propane.
  • 0

Image
User avatar
Dornep
Master Sergeant
Master Sergeant
 
Posts: 151
Joined: Thu Aug 09, 2007 5:49 pm
Location: Florida
Reputation: 0

Unread postAuthor: noname » Tue Oct 16, 2007 9:11 pm

Dornep wrote: I have to inject two shots at 60PSI to get the required 180PSI of propane.


Wait a second..... :lol:
  • 0

User avatar
noname
Lieutenant General
Lieutenant General
 
Posts: 2699
Joined: Mon Apr 10, 2006 9:19 pm
Location: Bay Area, CA
Country: United States (us)
Reputation: 9

Unread postAuthor: Dornep » Tue Oct 16, 2007 9:24 pm

LOL! I just noticed that... But thank you for pointing it out. :oops:

I never really payed much attention to the fact that 60x2=120.. This time we'll say it equals 180. :D
  • 0

Image
User avatar
Dornep
Master Sergeant
Master Sergeant
 
Posts: 151
Joined: Thu Aug 09, 2007 5:49 pm
Location: Florida
Reputation: 0

Previous

Return to Combustion Cannon Discussion

Who is online

Registered users: Bing [Bot], Yahoo [Bot]

Reputation System ©'