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How long will 4 feet of 2" sch40 last me with my bbmg..

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How long will 4 feet of 2" sch40 last me with my bbmg..

Unread postAuthor: Dussalater » Mon Sep 29, 2008 8:54 pm

I am thinkin about converting my bbmg to portable and am wondering how long 4 feet of sch40 pipe charged up too 100psi will last.. If you understand what i am saying the plz reply.. Sort of hard to put in words..
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Unread postAuthor: the tater ninja » Mon Sep 29, 2008 9:12 pm

You mean how long it will fire for, right? Well, that would depend on the diameter of the pipe. What diameter were you thinking?
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Unread postAuthor: Dussalater » Mon Sep 29, 2008 9:32 pm

yea 2" pipe
(message too short)
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Unread postAuthor: the tater ninja » Mon Sep 29, 2008 9:38 pm

Right... well... umm... I have no idea. I've tried this with smaller diameter pipe and it didn't work... but mine was fail, sooo.... i'd say just go for it and figure it out
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Unread postAuthor: MrCrowley » Mon Sep 29, 2008 9:46 pm

Probably 3 seconds before it hits about 50-60psi, where the BBMG will turn to sh|t.
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Unread postAuthor: Gippeto » Mon Sep 29, 2008 9:48 pm

If you want an answer to your question, give more information.

What are you using for a valve (blowgun?) ?

What are you using for a barrel? (1/4" brake line, or?)

These things will affect how long your pressure chamber is useful.

If it is already posted, you COULD post a link to it. Might make it easier for someone to help you?

The blowgun I was able to find specs for has a flow rate of about 30cfm at 90psi.

That's 28.8 in3 per second at 90 psi.

Your chamber volume is 301.4 in3

That means, you would run out of useable air in less than 10 seconds.

That sucks. :(
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Unread postAuthor: jackssmirkingrevenge » Mon Sep 29, 2008 10:50 pm

Gippeto wrote:That means, you would run out of useable air in less than 10 seconds.

That sucks. :(


It would be better to have a regulated HPA or CO<sub>2</sub> supply, but it can still be fun :)
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