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 47 users online :: 6 registered, 0 hidden and 41 guests


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

Registered users: Bing [Bot], farcticox1, Google [Bot], Google Adsense [Bot], MSNbot Media, Yahoo [Bot] based on users active over the past 5 minutes

The Team
Administrators
Global Moderators
global_moderators.png CS

What would be better/safer

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

What would be better/safer

Unread postAuthor: Sean » Wed Jan 28, 2009 8:43 pm

I just got all the parts for my first pneumatic gun.

I bought a 1/8" NPT Tank Valve to put the air into my chamber. Would it be better and safer to drill through 1 or 2 layers of PVC to thread it in. The total threaded length is about 7mm long. Since it is threaded it would be safe to just drill a slightly smaller hole, put teflon tape and just screw it in? Anything I am leaving out?

Edit: I measured the thickness of the PVC and it is 8mm thick, 1 mm longer than the thread would reach.
  • 0


Sean
Private First Class
Private First Class
 
Posts: 26
Joined: Thu Jul 03, 2008 1:18 am
Reputation: 0

Unread postAuthor: starman » Wed Jan 28, 2009 9:41 pm

Always find a 2 layer place to drill any holes if at all possible. Plan to properly tap them as well. If for some reason you cannot tap, seal it with JB Weld or Epoxy.
  • 0

User avatar
starman
Donating Moderator
Donating Moderator
 
Posts: 3041
Joined: Wed Dec 12, 2007 12:45 am
Location: Simpsonville, SC
Reputation: 0

Unread postAuthor: Sean » Wed Jan 28, 2009 9:43 pm

Ok thanks.

said message was too short, so I added this.
  • 0


Sean
Private First Class
Private First Class
 
Posts: 26
Joined: Thu Jul 03, 2008 1:18 am
Reputation: 0

Unread postAuthor: MrCrowley » Wed Jan 28, 2009 10:09 pm

Even if the threads aren't long enough to go through to the second layer, the second layer is 'welded' to the first, creating a chemical bond that makes the PVC 'one'. This double layer helps the structural integrity of the PVC and lowers the risk of cracking.
  • 0

User avatar
MrCrowley
Moderator
Moderator
 
Posts: 10207
Joined: Fri Jun 23, 2006 10:42 pm
Location: Auckland, New Zealand
Country: New Zealand (nz)
Reputation: 4

Return to Pneumatic Cannon Discussion

Who is online

Registered users: Bing [Bot], farcticox1, Google [Bot], Google Adsense [Bot], MSNbot Media, Yahoo [Bot]

Reputation System ©'