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QEV pnematic with PVC?

Posted: Thu Sep 20, 2007 1:44 pm
by ALIHISGREAT
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?

Posted: Thu Sep 20, 2007 1:47 pm
by spanerman
yes and yes

use the first one....i got one, tis good

Posted: Thu Sep 20, 2007 1:56 pm
by ALIHISGREAT
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 :(

Posted: Thu Sep 20, 2007 2:40 pm
by MaxuS
1" socket - 3/4" threaded bsp male
2" socket - 1" threaded bsp male
1" - 3/4" reducing bush

Posted: Thu Sep 20, 2007 2:49 pm
by Gepard
^^^They should be sockets shouldn't they?^^

Posted: Thu Sep 20, 2007 2:52 pm
by MaxuS
Bugger, i ment sockets, not spigots, its because i was reading Alih's post as i was writing mine.

Posted: Thu Sep 20, 2007 2:54 pm
by ALIHISGREAT
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?

Posted: Thu Sep 20, 2007 2:55 pm
by spanerman
Solvent Weld.......

Posted: Thu Sep 20, 2007 3:01 pm
by MaxuS
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.

Posted: Thu Sep 20, 2007 3:51 pm
by ALIHISGREAT
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.

Posted: Thu Sep 20, 2007 3:57 pm
by jackssmirkingrevenge

Posted: Thu Sep 20, 2007 4:03 pm
by ALIHISGREAT
thanks for the link, i will probably use a the different type of qev but it still helped me understand it better.

Posted: Thu Sep 20, 2007 4:13 pm
by MaxuS
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.

Posted: Fri Sep 21, 2007 1:26 am
by ALIHISGREAT
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.

Posted: Fri Sep 21, 2007 2:01 am
by MaxuS
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 __|__