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Posted: Wed Jan 05, 2011 9:23 am
by jackssmirkingrevenge
Butch902 wrote:isn't the max psi rating for a 3/4'' QEV 150- 175max?
A valve rated for 150 psi won't explode at 151 psi, while exceeding pressure ratings is not recommended there is a certain safety factor which some people choose to slim down, people have used typical QEVs to 500 psi and beyond without failure to my knowledge.
Of course though failure is not the only risk, even if it doesn't blow up you will be increasing wear and tear on the piston/diaphragm.
Posted: Wed Jan 05, 2011 9:48 am
by Crna Legija
yea but they can take a lot more, but i wouldn't go any more than that. also don't kick up dead topics
Posted: Thu Jan 06, 2011 5:30 am
by Dave_424
Wow, way to dig up an old post
But yeah, the rating is around 150 psi but it can take a lot more. 600 psi firings and there is no visible damage to the piston face or anything
I don't post much here anymore, moved onto bigger things, mainly building PCP airguns with operating pressures of 200-250 bar
Dave
Posted: Thu Jan 06, 2011 5:55 am
by jackssmirkingrevenge
Dave_424 wrote:building PCP airguns with operating pressures of 200-250 bar
Still worthy of being posted here *hint hint*
Posted: Thu Jan 06, 2011 7:02 am
by Dave_424
Okay, when I gave the time, I will
Might have a browse around the forum, see what you crazy guys have been up to
Dave
Posted: Thu Jan 06, 2011 10:12 pm
by Zeus
Certainly post some of your work, I don't think I've seen mention of homemade PCPs here, let alone seen a built one.
Even a few pictures would satiate some.
The QEV gun is very nice also.
Posted: Fri Jan 07, 2011 2:27 am
by jackssmirkingrevenge
Zeus wrote:I don't think I've seen mention of homemade PCPs here, let alone seen a built one.
Gipetto's work
here is quite impressive, there are several other PCPs on the site but most of them are modded commercial items.
Posted: Fri Jan 07, 2011 10:33 am
by Gippeto
Another one...more coming.
http://www.spudfiles.com/forums/little- ... 21083.html
Dave's doing some rather "nifty" stuff with the Stealth.
Post it up Dave...
Posted: Sat Jan 08, 2011 12:32 am
by jackssmirkingrevenge
Gippeto wrote:Dave's doing some rather "nifty" stuff with the Stealth.
Post it up Dave...
If Dave is in the UK and "nifty" means 12.01 ft/lbs +, I would understand his reasons for not posting.
Zeus, it seems your complaints
have been heeded