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Experience in cascaded air compressors?

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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Unread postAuthor: boyntonstu » Fri Feb 05, 2010 10:10 pm

POLAND_SPUD wrote:hmmm interesting... could you convince him to test max pressure as well ?


[youtube]http://www.youtube.com/watch?v=nR4lybUETqI[/youtube]

Not there yet but on the way.
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Unread postAuthor: scianiac » Sat Feb 06, 2010 1:26 am

ah.... I was unaware that the bottom of the piston is exposed to the input pressure. Very interesting. I think my pump can only do 400 because it was designed for what I believe to be the lower pressure automotive refrigerant as well as only needing to run for short periods of time.
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Unread postAuthor: maggotman » Wed Feb 17, 2010 3:19 pm

just loged in after like 6 months second post i read im still rememberd :D


i used a very low input pressure of about 50psi

i started the second compressor and wated till it toped out at around 1000psi the motor was running but it reached its limit i then input about 10psi it went up to about 1400psi then stoped basicaly all i was doing it compresing the air in the dead space i eventualy got up to 1800 then an internal seal on the pump blew remember the outher case pressure never was above 100 psi


i fancy having ago at makining anouther high pressure pump but more home grown maby utilising a bike piston and barrel.
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Unread postAuthor: Brian the brain » Wed Feb 17, 2010 4:30 pm

You are mostly remembered for your disregard to safety..

1800 psi on a small copper tube is not exactly safe..
I hope you haven't encouraged anyone to try it for themselves.

I mean, as cool as it would be to have 1800 psi at hand....it would require the rated materials to handle it safely.
Anyway...

I gave it a try and although I only used a 500 gram CO2 bottle, filled with air I did notice it filled a lot faster, above the input pressure.
Logically, the input pressure would flow through the fridgy even if it wasn't on, so I was curious to see if it made a difference.

I don't feel safe to have it run to the max though as it already reaches 900 psi on it's own.
Wich is more than I am willing to use..
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Gun Freak wrote:
Oh my friggin god stop being so awesome, that thing is pure kick ass. Most innovative and creative pneumatic that the files have ever come by!

Can't ask for a better compliment!!
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Unread postAuthor: POLAND_SPUD » Fri Feb 19, 2010 5:33 pm

second post i read im still rememberd
sorry magotman I shouldn't have written that... no reason not to trust you

I edited that
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Children are the future

unless we stop them now
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Unread postAuthor: maggotman » Mon Feb 22, 2010 5:39 pm

dont be i thought it was quite funny to be honest
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