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4" Burst Discs

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.
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4" Burst Discs

Unread postAuthor: MaxuS the 2nd » Sun Sep 14, 2008 3:37 pm

What on Earth would I use? :?
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Unread postAuthor: frankrede » Sun Sep 14, 2008 3:40 pm

Paint can lids.
Sheet metal
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Unread postAuthor: LikimysCrotchus5 » Sun Sep 14, 2008 3:40 pm

Aluminum (from a pop can), plastic (from something like a gatorade bottle), aluminum foil.

cant think of anymore atm.

Go with what frank said, i think that will be better.
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Last edited by LikimysCrotchus5 on Sun Sep 14, 2008 3:41 pm, edited 1 time in total.
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Unread postAuthor: MaxuS the 2nd » Sun Sep 14, 2008 3:41 pm

Ahh yes of course, very thin sheet metal..Why thank you. :D
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Unread postAuthor: psycix » Sun Sep 14, 2008 4:07 pm

Whole rolls of alluminium foil :D
Indeed, sheet metal would be better.
Though on a larger scale and pressure, burst disks become really expensive.
You may not need any projectile anymore because the BD shrapnel already rips stuff apart. (Larda's 200X hybrid) :D

What pressure are you using?
The thickness of your burst disk matters not only by diameter, but mostly by pressure!

You could also try other sheets:
Sheet pvc or other plastic, maybe wood if you can get it to seal.
Circles of sheet metal out of the doors and hood of your dads or neighbours car... :roll:
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Unread postAuthor: MaxuS the 2nd » Sun Sep 14, 2008 4:22 pm

It's only in 10bar rated PVC, but has a setup similar to that of sgort's burst disc pneumatic. With a pneumatic actuator. I'd be using it at around 100psi.
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Unread postAuthor: VH_man » Sun Sep 14, 2008 5:55 pm

where the hell did you get a 4 inch union?
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Unread postAuthor: Hotwired » Sun Sep 14, 2008 6:02 pm

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Unread postAuthor: MaxuS the 2nd » Mon Sep 15, 2008 2:01 am

I'm not using a 4" PVC Union. I'm using Camlocks.
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Unread postAuthor: D_Hall » Mon Sep 15, 2008 8:27 am

God forbid that you actually use burst disks?
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Unread postAuthor: JDP12 » Mon Sep 15, 2008 8:31 am

4 inch cam locks wtf! Them things are expensive!

and i think burst disks at that size, could become pretty dangerous with the shrapnel and all...
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Unread postAuthor: SpudFarm » Mon Sep 15, 2008 9:06 am

ilovetoblowthingsup wrote:and i think burst disks at that size, could become pretty dangerous with the shrapnel and all...


lol! x)
you dont HAVE to be infront of the cannon and if you are i think the 2kg lead slug will get you first xD
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Unread postAuthor: MaxuS the 2nd » Mon Sep 15, 2008 10:10 am

ilovetoblowthingsup wrote:4 inch cam locks wtf! Them things are expensive!


Not really, it was the cheapest option.

£30 ($60) for both the male and female parts. Aluminium ones that is.

@D_Hall: Indeed. Although if I do eventually use Aluminium Foil, I will need like 200 hundred layers to take up to 100psi and not burst.
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Unread postAuthor: Hotwired » Mon Sep 15, 2008 10:21 am

A 4" diameter port could be called a good time to transfer from foil to sheet metal.
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Unread postAuthor: starman » Mon Sep 15, 2008 11:25 am

You could try those thick cardboard beer coasters from bars and restaurants. Probably won't make it up to 100 psi though at the 4" size.
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