there are 2 kinds of copper

Show us your pneumatic spud gun! Discuss pneumatic (compressed gas) powered potato guns and related accessories. Valve types, actuation, pipe, materials, fittings, compressors, safety, gas choices, and more.
User avatar
roughboy
Specialist
Specialist
Posts: 197
Joined: Fri May 12, 2006 12:43 am

Fri Feb 23, 2007 1:04 am

I found out that there are 2 kinds of copper one is called flexible and the other is called rigid. what kind of copper should people use on there pneumatic spud gun? and which one of the two have more pressure rating?
User avatar
A-98
Corporal 5
Corporal 5
Posts: 921
Joined: Thu Apr 27, 2006 7:41 pm
Location: Santa Barbara, CA

Fri Feb 23, 2007 1:19 am

ya, as for the pressure rating, i dunno which one would have more. but you can use the flexable one fore running from blowguns to valves, plus it looks sexy
There are rules, and then there are hundred dollar bills.
User avatar
joannaardway
Corporal 5
Corporal 5
Posts: 949
Joined: Mon Oct 09, 2006 4:57 pm
Location: SW Hertfordshire, England, UK.

Fri Feb 23, 2007 4:00 am

You need semi-rigid (which is probably what you refered to as rigid) pipe for chambers and barrels. It's called semi-rigid because it is still bendable, but not easily.

Flexible pipe can be used to run things like blowguns and pressure gauges to where you want them.
However, it should be bent only once (twice tops), and then left. It's not like flexible plastic hose, as it will eventually give into metal fatigue if over-manipulated.

Usually, flexible is narrow bore, and semi-rigid is the larger diameter stuff.

The narrow bore pipe tends to have a higher pressure rating in the region of above 2000 psi.

But the larger bore pipe is still very tough. It'll take above 300 psi easily, and in the region of 1" and below, over 600 if needs be.
Novacastrian: How about use whatever the heck you can get your hands on?
frankrede: Well then I guess it won't matter when you decide to drink bleach because your out of kool-aid.
...I'm sorry, but that made my year.
User avatar
Hotwired
First Sergeant 3
First Sergeant 3
Posts: 2599
Joined: Fri Oct 13, 2006 5:51 am
Location: UK

Fri Feb 23, 2007 6:43 am

You can get quite sizeable flexible copper but it's incredibly naff for making barrels and chambers.

It comes in rolls which have to be straightened out and it dents more easily than rigid copper. Only good on cannons as alternatives to pressure hose.
Post Reply