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Unread postAuthor: x.X.Cpt.Rollhart.X.x » Sun Apr 30, 2006 7:14 pm

How many psi for this ?

Air Chamber made with PVC. 2" copper valve.

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Unread postAuthor: Atlantis » Sun Apr 30, 2006 7:40 pm

That's probably the dumbest question I've ever heard. Do ANY research and you'll figure it out.
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Unread postAuthor: x.X.Cpt.Rollhart.X.x » Sun Apr 30, 2006 8:21 pm

Atlantis wrote:That's probably the dumbest question I've ever heard. Do ANY research and you'll figure it out.


lol sorry

I just want an information ...
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Unread postAuthor: Obctg » Sun Apr 30, 2006 8:37 pm

hmm start at 50 and go up. i ususally fire mine at 120-150
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Unread postAuthor: Atlantis » Sun Apr 30, 2006 8:40 pm

If you have ANY DWV parts don't go past 50. If you have all pressure rated fitting you can go, maybe 120 max.
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Unread postAuthor: x.X.Cpt.Rollhart.X.x » Sun Apr 30, 2006 8:41 pm

Atlantis wrote:If you have ANY DWV parts don't go past 50. If you have all pressure rated fitting you can go, maybe 120 max.



DWV ?

whats that ?
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Unread postAuthor: boilingleadbath » Sun Apr 30, 2006 10:14 pm

Errr... the initial question doesn't quite make sence. What do you want to know the pressue for:
1) Highest safe pressure?
2) Pressure at which it'll make no noise?
...so, yeah, what did you have in mind?
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Unread postAuthor: SpudStuff » Sun Apr 30, 2006 10:24 pm

the PVc is rated to 220 PSi and the valve probably 150 PSI so you can very safely take it to 150 PSI because parts have a large saftey margin

DWV stand for drain waste vent it is not pressure rated. look for NSF-PW on all of your pipes. that means its pressure rated
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Unread postAuthor: Brian the brain » Sun Apr 30, 2006 11:19 pm

Capt. Rollhart...are you Dutch or German by any chance?
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Unread postAuthor: jrrdw » Mon May 01, 2006 2:39 am

Thats about as simple as it gets, the cannon design i mean, but i think i've seen that pic in other post. Did you copy this 1 from another forum? Just wondering.
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Unread postAuthor: Benny » Mon May 01, 2006 5:51 am

i take dwv to 100 psi, as holy **** its still going, said they have a huge safty margain.
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Unread postAuthor: x.X.Cpt.Rollhart.X.x » Mon May 01, 2006 12:12 pm

Ok ill try to answer all question


Errr... the initial question doesn't quite make sence. What do you want to know the pressue for:
1) Highest safe pressure?
2) Pressure at which it'll make no noise?
...so, yeah, what did you have in mind?


I want to know the Highest safe pressure



Capt. Rollhart...are you Dutch or German by any chance?


Not really, I am from Québec, Canada.

I dont speak english very well




Thats about as simple as it gets, the cannon design i mean, but i think i've seen that pic in other post. Did you copy this 1 from another forum? Just wondering.

I did the plan by myself. But, the design is VERY simple so I am not the first person who made this kind of cannon.




Sorry if i wasn't clearly but my english is very limited ...

I have absolutly NO experience in Spud gun. I just made a Pneumatic cannon yesterday with my friend and i liked it. Then I want to do a bigger and a safer one ...


I have 2 other questions.


How do you compress air into ur air chamber ?

Last time i used a bike pump and it was very long to fill ...and

How can I firmly stick PVC piece togheter without any air escape ???


Yesterday, I glued it with PVC glue and I put some nail like this :

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Unread postAuthor: boilingleadbath » Mon May 01, 2006 8:41 pm

Tu quois que <i>ton</i> anglais est petit ou mauvais? J'ai suive francais 3 ans, et ce est pres de mon plus bon... et ma classe n'a pas etudie les chose des machines.

^The above statment is a poorly written "my french is worse than your english" statment, for those that don't speak french.

Anyway, your english is easily understood and acctualy better than that of some native speakers... never mind comparing it to my french.
****

As to your question, the valve is rated to a few hundred PSI - like 300-500 - and the chamber is rated to 220. If I remember correctly, threaded fittings are rated to 1/2 of the pipe rating, so the 2" threads are rated to 160 psi...
"Safe use" is a sketchy subject, but I'd keep it under 150.
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Unread postAuthor: x.X.Cpt.Rollhart.X.x » Mon May 01, 2006 8:55 pm

boilingleadbath wrote:Tu quois que <i>ton</i> anglais est petit ou mauvais? J'ai suive francais 3 ans, et ce est pres de mon plus bon... et ma classe n'a pas etudie les chose des machines.

^The above statment is a poorly written "my french is worse than your english" statment, for those that don't speak french.

Anyway, your english is easily understood and acctualy better than that of some native speakers... never mind comparing it to my french.
****

As to your question, the valve is rated to a few hundred PSI - like 300-500 - and the chamber is rated to 220. If I remember correctly, threaded fittings are rated to 1/2 of the pipe rating, so the 2" threads are rated to 160 psi...
"Safe use" is a sketchy subject, but I'd keep it under 150.


thank you

Ok then if I stick all my air chamber PVC part together, and I put nail to secure it like on my drawing, I can put it under 120 psi without any danger ?
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Last edited by x.X.Cpt.Rollhart.X.x on Mon May 01, 2006 8:55 pm, edited 1 time in total.
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Unread postAuthor: Orbit » Mon May 01, 2006 8:55 pm

If you do not know how to compress air in the chamber, or stick pices of pvc togther, i suggest you do a little research before you try to do anything.
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