Login    Register
User Information
We are a free and open
community, all are welcome.
Click here to Register
Who is online

In total there are 48 users online :: 2 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] based on users active over the past 5 minutes

The Team
Global Moderators
global_moderators.png CS

Test plugs

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.
  • Author

Unread postAuthor: williamfeldmann » Fri Oct 19, 2007 10:26 am

I am not sure that everyone has really grasped the fact that this plug is after the valve.

The plug only has to hold more pressure than the projectile's surface friction in the barrel. It is not a pressurized part. If he is breach loading the ammo is not going to fit super tight in there.

I am still leary of the rubber stop caps. I agree they would but a good bit of pressure outward on the pipe and fitting. Over time this could cause problems.

I would personally use a cleanout cap. You are not likely to wear out the threads unless you are seriously abusing the thing. As for cleanout caps being DWV, I use DWV for silencers and other parts after the valve and have never had any problems. Do not use dwv on the pressure side of the valve though, ever. At least if you like your cannon to stick around
  • 0

Trying to figure out how to make a SCUBA first stage regulator work for portable charging station. If only that pesky job thing didn't keep eating up all my time...

"Only two things are infinite, the universe and human stupidity, and I'm not sure about the former." - Albert Einstein
User avatar
2nd Lieutenant
2nd Lieutenant
Posts: 216
Joined: Sun Sep 09, 2007 6:55 pm
Location: Ames. Iowa, middle of BFE
Reputation: 0

Unread postAuthor: EGOed » Fri Oct 19, 2007 11:01 am

I agree with William and definitely wouldnt try using these test plugs for anything other than what I intend to use it for which is a simple breach load on a cannon barrel.....If anyone has intentions of trying to use this on a dead headed presurized system like a valve or a chamber I would strongly advise against this......If in fact I do like the performance of the test plug as a breach load , I will keep it as an option for this purpose only.....I would never use anything other than pw-nsf on my cannons though as I rarely have a use for DWV with the 2" diam cannons that I make...My chambers are all fibre wrapped aluminum SCBA tanks.
  • 0

Posts: 64
Joined: Wed Jan 31, 2007 8:10 pm
Reputation: 0


Return to Pneumatic Cannon Discussion

Who is online

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

Reputation System ©'