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 68 users online :: 4 registered, 0 hidden and 64 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

Iron max pressure?

Post questions and info about hybrid (compressed gas with fuel) powered cannons here. This includes discussion about fuels, ratios, ignition systems, build types, safety, and anything else relevant.
Sponsored 
  • Author
    Message

Unread postAuthor: b1galez » Mon Feb 12, 2007 3:55 pm

I was thinking about an electric valve (like that used in gardens etc)... when it's opened can it holds more than 10/15 bar? My idea is to open the valve and after ignite the gas in the barrel (but this could require a longer barrel, i suppose)
What do you think about it? (I had this idea reading the thread "No burst disk hybrid" written by insomniac)
  • 0


b1galez
Private
Private
 
Posts: 11
Joined: Sat Feb 10, 2007 11:09 am
Location: Napoli, italy
Reputation: 0

Unread postAuthor: b1galez » Mon Feb 12, 2007 4:23 pm

I just added another photo... this is my project finished (however i have to replace the lighter starter with something better like a circuit from camera flash or something similar...)
:D
  • 0


b1galez
Private
Private
 
Posts: 11
Joined: Sat Feb 10, 2007 11:09 am
Location: Napoli, italy
Reputation: 0

Unread postAuthor: willarddaniels » Fri Feb 16, 2007 1:38 am

I spoke to a PUD engineer about this issue yesterday, before my city council meeting. He could not remember seeing any data in his books, but was pretty sure that there is no set or fixed pressure rating for most commonly-found metal pipe. Reason being: different manufacturers and they are not designed (specifically) to hold xxx psi. I specifically inquired about galvanized, sch 40 and sch 80 black. I did see at Lowe's that the rating on a black 1.25" union is only 150 psi.
I'll try to find out more specific info from my engineer friend when he is actually at his office and around his books.
  • 0

User avatar
willarddaniels
1st Lieutenant
1st Lieutenant
 
Posts: 286
Joined: Wed Jan 31, 2007 2:34 pm
Location: Idaho
Reputation: 0

Previous

Return to Hybrid Cannon Discussion

Who is online

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

Reputation System ©'