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QEV pnematic with PVC?

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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QEV pnematic with PVC?

Unread postAuthor: ALIHISGREAT » Thu Sep 20, 2007 1:44 pm

would it be possible to use one of these http://www.airlines-pneumatics.co.uk/webcat/Detprod.asp?ProductCode=S070139 or one of these http://www.airlines-pneumatics.co.uk/webcat/Detprod.asp?ProductCode=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?
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Unread postAuthor: spanerman » Thu Sep 20, 2007 1:47 pm

yes and yes

use the first one....i got one, tis good
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Unread postAuthor: ALIHISGREAT » Thu Sep 20, 2007 1:56 pm

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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Unread postAuthor: MaxuS » Thu Sep 20, 2007 2:40 pm

1" socket - 3/4" threaded bsp male
2" socket - 1" threaded bsp male
1" - 3/4" reducing bush
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Last edited by MaxuS on Thu Sep 20, 2007 2:53 pm, edited 1 time in total.
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Unread postAuthor: Gepard » Thu Sep 20, 2007 2:49 pm

^^^They should be sockets shouldn't they?^^
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Unread postAuthor: MaxuS » Thu Sep 20, 2007 2:52 pm

Bugger, i ment sockets, not spigots, its because i was reading Alih's post as i was writing mine.
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Unread postAuthor: ALIHISGREAT » Thu Sep 20, 2007 2:54 pm

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?
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Unread postAuthor: spanerman » Thu Sep 20, 2007 2:55 pm

Solvent Weld.......
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Unread postAuthor: MaxuS » Thu Sep 20, 2007 3:01 pm

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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Unread postAuthor: ALIHISGREAT » Thu Sep 20, 2007 3:51 pm

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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Unread postAuthor: jackssmirkingrevenge » Thu Sep 20, 2007 3:57 pm

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Unread postAuthor: ALIHISGREAT » Thu Sep 20, 2007 4:03 pm

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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Unread postAuthor: MaxuS » Thu Sep 20, 2007 4:13 pm

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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Unread postAuthor: ALIHISGREAT » Fri Sep 21, 2007 1:26 am

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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Unread postAuthor: MaxuS » Fri Sep 21, 2007 2:01 am

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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