QEV pnematic with PVC?

Cannons powered by pneumatic pressure (compressed gas) using a valve or other release.
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ALIHISGREAT
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would it be possible to use one of these http://www.airlines-pneumatics.co.uk/we ... de=S070139 or one of these http://www.airlines-pneumatics.co.uk/we ... =S07013905
on a pvc pnuematic with a 2" chamber and 1" barrel (i would use a 3/4" valve)

and i heard somewhere a 3/4" qev outperforms a 12 modded sprinkler, is
that right?
spanerman
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yes and yes

use the first one....i got one, tis good
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ALIHISGREAT
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so would i just need to get a 3/4" male threaded pvc fitting with a 3/4" spigot then a 3/4"-1" reducing bushing then use a 1" socket to fit it to my 1" pipe? because i don't want to buy 3/4" pipe aswell as the 1" and 2" pipe because i have to buy in expensive 3m lengths :(
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MaxuS
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1" socket - 3/4" threaded bsp male
2" socket - 1" threaded bsp male
1" - 3/4" reducing bush
Last edited by MaxuS on Thu Sep 20, 2007 2:53 pm, edited 1 time in total.
Gepard
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^^^They should be sockets shouldn't they?^^
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MaxuS
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Bugger, i ment sockets, not spigots, its because i was reading Alih's post as i was writing mine.
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ALIHISGREAT
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MaxuS wrote:1" socket - 3/4" threaded bsp male
2" socket - 1" threaded bsp male
1" - 3/4" reducing bush
ermm wt? i kno what the parts are but how where would u attach them?
spanerman
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Solvent Weld.......
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MaxuS
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As spanerman said, solvent weld the 1" socket - 3/4" threaded bsp male onto an end of your barrel, do the same to the 2" socket onto your chamber, screw the reducing bush from the 2" threaded bsp male into the 2" - 1" reducing bush, and then screw them in (the right way round) into your 1" sprinkler valve.
I think ive explained more than was neccesary.
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ALIHISGREAT
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MaxuS wrote:As spanerman said, solvent weld the 1" socket - 3/4" threaded bsp male onto an end of your barrel, do the same to the 2" socket onto your chamber, screw the reducing bush from the 2" threaded bsp male into the 2" - 1" reducing bush, and then screw them in (the right way round) into your 1" sprinkler valve.
I think ive explained more than was neccesary.
how does a sprinkler valve come into this? and i will use the qev on the first link.
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hectmarr wrote:You have to make many weapons, because this field is long and short life
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ALIHISGREAT
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thanks for the link, i will probably use a the different type of qev but it still helped me understand it better.
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MaxuS
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ALIHISGREAT wrote:
MaxuS wrote:As spanerman said, solvent weld the 1" socket - 3/4" threaded bsp male onto an end of your barrel, do the same to the 2" socket onto your chamber, screw the reducing bush from the 2" threaded bsp male into the 2" - 1" reducing bush, and then screw them in (the right way round) into your 1" sprinkler valve.
I think ive explained more than was neccesary.
how does a sprinkler valve come into this? and i will use the qev on the first link.
Im a tit, i had my tennis ball launcher in my head while writing that post :lol: . Solvent weld the 1" socket - 3/4" threaded bsp male onto an end of your barrel, do the same to the 2" socket onto your chamber, screw the reducing bush from the 2" threaded bsp male into the 2" - 3/4" (or get a 2" - 1", then a 1" - 3/4" if you cant find a 2" - 3/4") reducing bush, and then screw them in (the right way round) into your 3/4" QEV.
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ALIHISGREAT
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MaxuS wrote:
ALIHISGREAT wrote:
MaxuS wrote:As spanerman said, solvent weld the 1" socket - 3/4" threaded bsp male onto an end of your barrel, do the same to the 2" socket onto your chamber, screw the reducing bush from the 2" threaded bsp male into the 2" - 1" reducing bush, and then screw them in (the right way round) into your 1" sprinkler valve.
I think ive explained more than was neccesary.
how does a sprinkler valve come into this? and i will use the qev on the first link.
Im a tit, i had my tennis ball launcher in my head while writing that post :lol: . Solvent weld the 1" socket - 3/4" threaded bsp male onto an end of your barrel, do the same to the 2" socket onto your chamber, screw the reducing bush from the 2" threaded bsp male into the 2" - 3/4" (or get a 2" - 1", then a 1" - 3/4" if you cant find a 2" - 3/4") reducing bush, and then screw them in (the right way round) into your 3/4" QEV.
yer u r a tit :lol:. and thats what i thought u meant.
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MaxuS
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It's going to be a bit of an awkward cannon though, are you going to use an elbow or something, the barrel, chamber and fill/trigger point will all be 90 degrees to each other. Like this __|__
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