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 42 users online :: 2 registered, 0 hidden and 40 guests


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

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

The Team
Administrators
Global Moderators
global_moderators.png CS

the dangers of dwv

A place to ask general spud cannon related questions.
Sponsored 
  • Author
    Message

Unread postAuthor: super spuder » Sat May 12, 2007 11:19 am

noname wrote:Super spudder, now you're just making yourself look like more of a dumbass.
super spudder wrote:yes, that is what i have been telling these people. ABS is thicker than PVC there for, it can hold more pressure.

That one just made me laugh and shake my head in amazement. Would you make a Play-Doh cannon, because it's thicker? :lol:

um. to answer your question, i would make a cannon out of play-doh. and that was kinda stupid wording. But i thought you would get my point that they are both plastic but ABS is thicker. But i guess you intelligence level is not that high, sorry :lol:
  • 0

trying to decide on a new project, probably something small.
User avatar
super spuder
Colonel
Colonel
 
Posts: 558
Joined: Fri Apr 06, 2007 9:05 pm
Location: Ontario Canada
Reputation: 0

Unread postAuthor: pyromaniac » Sat May 12, 2007 11:23 am

super spuder wrote:um. to answer your question, i would make a cannon out of play-doh. But i guess you intelligence level is not that high, sorry :lol:


I really do guess your intelligence isn't that high super spuder.

PLAYDOH? you must be retarded.
  • 0

:pottytrain3:
User avatar
pyromaniac
Brigadier General
Brigadier General
 
Posts: 805
Joined: Tue Feb 27, 2007 7:18 pm
Location: MO
Reputation: 0

Unread postAuthor: super spuder » Sat May 12, 2007 11:26 am

um. you know what. i am going to go and make a play-doh pneumatic cannon, ummm yea right. You actually thought i was serious hehehe, you make me laugh hehehaha. anyways. i was just kidding. how ever, it might be possible to make a combustion play-doh gun?
  • 0

trying to decide on a new project, probably something small.
User avatar
super spuder
Colonel
Colonel
 
Posts: 558
Joined: Fri Apr 06, 2007 9:05 pm
Location: Ontario Canada
Reputation: 0

Unread postAuthor: pyromaniac » Sat May 12, 2007 11:30 am

super spuder wrote:um. you know what. i am going to go and make a play-doh pneumatic cannon, ummm yea right. You actually thought i was serious hehehe, you make me laugh hehehaha. anyways. i was just kidding. how ever, it might be possible to make a combustion play-doh gun?


you actually though that i thought you actually ment that heheheh.

flying salt made a paper mache one i dont see what you couling make on out of playdoh.
  • 0

:pottytrain3:
User avatar
pyromaniac
Brigadier General
Brigadier General
 
Posts: 805
Joined: Tue Feb 27, 2007 7:18 pm
Location: MO
Reputation: 0

Unread postAuthor: super spuder » Sat May 12, 2007 11:33 am

if i hade play-doh i would go and try it
  • 0

trying to decide on a new project, probably something small.
User avatar
super spuder
Colonel
Colonel
 
Posts: 558
Joined: Fri Apr 06, 2007 9:05 pm
Location: Ontario Canada
Reputation: 0

Unread postAuthor: Bubba05 » Sat May 12, 2007 11:34 am

yeah in a way you could use playdoh it would only last one shot! not a projectile of corse just a small flame thrower.

Bubba
  • 0

User avatar
Bubba05
Colonel
Colonel
 
Posts: 518
Joined: Wed Mar 21, 2007 9:05 am
Reputation: 0

Unread postAuthor: super spuder » Sat May 12, 2007 11:39 am

you know what, i am going to make some play-doh. and make a spud gun out of it. :D
  • 0

trying to decide on a new project, probably something small.
User avatar
super spuder
Colonel
Colonel
 
Posts: 558
Joined: Fri Apr 06, 2007 9:05 pm
Location: Ontario Canada
Reputation: 0

Sponsored

Sponsor
 


Unread postAuthor: SpudBlaster15 » Sat May 12, 2007 11:42 am

Bubba05 wrote:In Australia the only reason we have ABS is for irragation set ups and reticulation set ups in the home or on an indusrial scale dosent matter. The sh@t was designed for that. Not for cannons.


NO pipe that we use to construct launchers is designed for such purposes. Most PVC manufacturing companies have clear warnings printed on their pipe, stating that it is not to be used with gas pressure. Pressure rated ABS is designed to be used to transport high pressure gas.

Bubba05 wrote:As I said it can handle a bit of water pressure but in the end if you over load it it will rupture. Hence the crack in your barrel in the link from hi.


Well, I think it is somewhat obvious that if you OVER load the pipe, it will rupture. So will any other material.

As evidenced in the link posted by hi, that DWV ABS cannon was able to withstand multiple firings using an oxygen/propane mixture. With the instantaneous onset of an adiabatic combustion pressure of 260psi, this is well outside the confines that most launchers operate within.

Bubba05 wrote:How do I know this you ask?? My uncle is a land scaper and for many years I have helped him. I went to make a cannon outa stuff he had laying around and that is what he said!


I find it hilarious when I get into a debate with someone who bases their entire argument on what their uncle has said. :lol: Landscaper or not, he knows nothing about the behavior of compressed gas within an ABS chamber.

Bubba05 wrote:Hence I dont make cannons out of ABS becouse it ruptures/ cracks/ splits/ blows up if it is used beyond its capabilitys.


I think it has been established since the definition of capabilities was created, that anything will fail if pushed beyond them.

Bubba05 wrote:Dono what the sh@t is used for over where ever you are but I've never seen it used in a hi pressuse gas/water aplication.


"ABS, PE and PVC materials are all available with 73 F stress rating for use in pressure piping."
  • 0

People should not be afraid of their governments. Governments should be afraid of their people.
User avatar
SpudBlaster15
Major General
Major General
 
Posts: 2385
Joined: Wed Oct 18, 2006 11:12 pm
Location: Canada
Country: Poland (pl)
Reputation: 3

Unread postAuthor: Velocity » Sat May 12, 2007 12:08 pm

Spudblaster15: I don't think most of the people here are talking about pressure rated ABS pipe, due to its rarity. However, if everyone here IS referring to solid wall, pressure rated ABS pipe, then yes, it is obviously superior to pressure rated PVC. It is much more shock resistant (might not BLOW when dropped) and if it does fail, it will just split open.

Personally, I would never use cellcore PVC or ABS for anything. Solid wall DWV PVC versus solid wall DWV ABS.... hmm, I haven't used either extensively (used DWV PVC on my first 3 cannons or so), so I can't really say anything.
  • 0

User avatar
Velocity
Brigadier General
Brigadier General
 
Posts: 1039
Joined: Tue Feb 07, 2006 5:42 pm
Reputation: 0

Unread postAuthor: super spuder » Sat May 12, 2007 12:18 pm

i really have no idea of what kind of ABS i am talking about :?
  • 0

trying to decide on a new project, probably something small.
User avatar
super spuder
Colonel
Colonel
 
Posts: 558
Joined: Fri Apr 06, 2007 9:05 pm
Location: Ontario Canada
Reputation: 0

Unread postAuthor: frankrede » Sat May 12, 2007 2:23 pm

super spuder wrote:yes, that is what i have been telling these people. ABS is thicker than PVC there for, it can hold more pressure. i am not by any means saying that pressure rated PVC can not hold pressure. I did not know there was pressure rated ABS.
@ spudblster15: how is that comment not relevant. he is talking about ABS pipe, and if you look at the top of this page, it is about ABS pipe, sow how is it not relevant
ABS IS NOT THICKER THAN PVC!ALL SCH-40 IS THE SAME THICKNESS IN THE SAME SIZE.

The stupidity in this topic is disgusting!
PVC fittings are pressure rated, fork what mcmaster says because I know!
Pressure rated fittings have a nsf-pw!
They may not carry a specific number but they still are pressure rated.
That cannon had a DWV bell reducer.
And probably some cell core PVC.
And to the person who said they would rather have cell core pvc than abs because pvc can take some pressure
  • 0

Current project: Afghanistan deployment
User avatar
frankrede
Lieutenant General
Lieutenant General
 
Posts: 3220
Joined: Thu Jul 20, 2006 9:47 pm
Reputation: 0

Unread postAuthor: SpudBlaster15 » Sat May 12, 2007 3:09 pm

rmich732 wrote:Spudblaster15: I don't think most of the people here are talking about pressure rated ABS pipe, due to its rarity.


I know that, and it does not change my point of view. Solid core ABS, pressure rated or not, is superior to PVC of any kind when it comes to constructing a combustion cannon.

Does anyone actually know what the difference between DWV and Pressure rated pipe is? As far as I can tell, there is no difference structurally, only that pressure pipe is tested to ensure that it can in fact hold the pressure it is to be rated to.
  • 0

People should not be afraid of their governments. Governments should be afraid of their people.
User avatar
SpudBlaster15
Major General
Major General
 
Posts: 2385
Joined: Wed Oct 18, 2006 11:12 pm
Location: Canada
Country: Poland (pl)
Reputation: 3

Unread postAuthor: super spuder » Sat May 12, 2007 3:47 pm

frankrede wrote:
super spuder wrote:yes, that is what i have been telling these people. ABS is thicker than PVC there for, it can hold more pressure. i am not by any means saying that pressure rated PVC can not hold pressure. I did not know there was pressure rated ABS.
@ spudblster15: how is that comment not relevant. he is talking about ABS pipe, and if you look at the top of this page, it is about ABS pipe, sow how is it not relevant
ABS IS NOT THICKER THAN PVC!ALL SCH-40 IS THE SAME THICKNESS IN THE SAME SIZE.

The stupidity in this topic is disgusting!
PVC fittings are pressure rated, fork what mcmaster says because I know!
Pressure rated fittings have a nsf-pa!
They may not carry a specific number but they still are pressure rated.
That cannon had a DEV bell reducer.
And probably some cell core PVC.
And to the person who said they would rather have cell core pvc than abs because pvc can take some pressure

in my area, there is two kinds of fittings DWV abs, or DWV pvc (which is the stuff in the video probly) the DWV abs is thicker than the DWV pvc. for the pipe , i think it is all the same thickness, but the fittings are different thicknesses.
  • 0

Last edited by super spuder on Sat May 12, 2007 3:54 pm, edited 1 time in total.
trying to decide on a new project, probably something small.
User avatar
super spuder
Colonel
Colonel
 
Posts: 558
Joined: Fri Apr 06, 2007 9:05 pm
Location: Ontario Canada
Reputation: 0

Unread postAuthor: hi » Sat May 12, 2007 3:53 pm

dwv is a sligtly cheaper quality, but the same type of plastic. i would draw the line at 80 psi, just to be safe. im sure it could take much more than that.

also, another advantage of abs over pvc is it weighs half as much, yet it is still just as strong.

i know it isnt pressure rated, but as i said in another post, coke bottles arent rated, yet people pump them up to 120 psi and feel "safe".
  • 0

"physics, gravity, and law enforcement are the only things that prevent me from operating at my full potential" - not sure, but i like the quote

you know you are not an engineer if you have to remind yourself "left loosy righty tighty"
User avatar
hi
Major General
Major General
 
Posts: 1619
Joined: Thu Feb 01, 2007 9:28 pm
Reputation: 0

Unread postAuthor: pyromaniac » Sat May 12, 2007 4:00 pm

coke bottle dont frag thats why. this is more of a pvc vrs abs debate now.

I ment for this to be showing peopel why to not use dwv.
  • 0

:pottytrain3:
User avatar
pyromaniac
Brigadier General
Brigadier General
 
Posts: 805
Joined: Tue Feb 27, 2007 7:18 pm
Location: MO
Reputation: 0

PreviousNext

Return to General Spud Cannon Related

Who is online

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

Reputation System ©'