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where can i buy qev
Posted: Sun Jan 10, 2010 10:47 am
by far_cry
does anyone know where to buy qev on the net include shipping world wide except eBay?
i found this in eBay
http://cgi.ebay.com/Pneumatic-Quick-Exh ... 3ca1f7c8e2
38 $ include shipping is that good price for 1/2" qev made in china ?
and i read in this site that some of you tested and use this qev with high pressure up to 850psi ,so can i use it with 650 psi always ?
Posted: Sun Jan 10, 2010 11:00 am
by jackssmirkingrevenge
That's just over 25 euros, you can make your own piston for much less
Posted: Sun Jan 10, 2010 12:38 pm
by far_cry
i made piston valve, but i get some issues with it
leaking (that i can fix) the major problem is the piston seal
because i use such i high pressure 700psi the seal always cut off and that happen even with 2mm seat smooth surface
i looked for hard rubber that i can machine it with the shape of piston but couldn't find .
Posted: Sun Jan 10, 2010 12:48 pm
by jackssmirkingrevenge
Can't you enlarge the seat externally by epoxying some extra tubing, like I did
here?
Posted: Sun Jan 10, 2010 7:38 pm
by far_cry
jackssmirkingrevenge wrote:Can't you enlarge the seat externally by epoxying some extra tubing, like I did
here?
no i cant its very limited . 3/4" T
just a hard rubber piston will help me
Posted: Sun Jan 10, 2010 9:35 pm
by MrPed
I just bought this the other day:
http://cgi.ebay.com/Pneumatic-Quick-Exh ... 3ca578066a
But, I have yet to test it. When I get around to testing it I will let you how it goes.
