first of all i want to thanks BTB for this share of this concept.
piloting the piston valve that i build was the hard part, what i seek is a small trigger ,good flow and fast opening and handling a HPA.
BTB concept solved my problem
so here it is
[youtube][/youtube]
picture of the parts will come later
Posted: Mon Jul 13, 2009 6:58 pm
by Hotwired
700psi certainly shifted that sharpish.
Power assisted piloting ^^
Posted: Mon Jul 13, 2009 7:08 pm
by far_cry
Hotwired wrote:700psi certainly shifted that sharpish.
Power assisted piloting ^^
i know that mt English not the best
but i know for sure that what you type above is not understandable
Posted: Mon Jul 13, 2009 7:16 pm
by Ragnarok
far_cry wrote:i know that mt English not the best but i know for sure that what you type above is not understandable
My English is not the best either - but it is well above average and I can tell you with absolute certainty that it certainly is understandable.
Posted: Mon Jul 13, 2009 7:31 pm
by Hotwired
I'll bet I'm much worse at your language so in short:
Good work
Posted: Mon Jul 13, 2009 8:07 pm
by Mitchza89
That's fantastic. I'd love to know how it works. Is it just a big bulky homemade poppet valve or?..
Posted: Tue Jul 14, 2009 2:42 pm
by Brian the brain
Nice to see you tried this!
Thanks for sharing it.
Somehow my 1/4" version seems a bit silly...
It must have huge flow!
That's fantastic. I'd love to know how it works. Is it just a big bulky homemade poppet valve or?..
It used a piston opposite to the sealing face.
Pressure is now equal on both sides and you only need to push back against the force generated by a spring to open it.
Posted: Tue Jul 14, 2009 3:47 pm
by boyntonstu
Brian the brain wrote:Nice to see you tried this!
Thanks for sharing it.
Somehow my 1/4" version seems a bit silly...
It must have huge flow!
That's fantastic. I'd love to know how it works. Is it just a big bulky homemade poppet valve or?..
It used a piston opposite to the sealing face.
Pressure is now equal on both sides and you only need to push back against the force generated by a spring to open it.
How is the button rod sealed to the valve body?
BoyntonStu
Posted: Wed Jul 15, 2009 2:37 pm
by Brian the brain
How is the button rod sealed to the valve body?
with a floating O-ring...
Side note:
If you put a strong spring on the button side this valve will work as a regulator..closing when the spring force is equaled by the pressure.
The valve must be connected to a closed system of course..for it to regulate pressure..
But perhaps I'll have to make one to show you guys how...
Posted: Thu Jul 16, 2009 12:08 pm
by far_cry
Brian the brain wrote:Nice to see you tried this!
Thanks for sharing it.
Somehow my 1/4" version seems a bit silly...
It must have huge flow!
all thanks to you BTB .and yours a bit silly !!! i think not ,its handsome
and yes he have superb flow
boyntonstu wrote:
How is the button rod sealed to the valve body?
BoyntonStu
the both sides of the T have 1/2" nipples ,and there is a pictures for the valve core .i think you will know how the piston rod sealed up
Posted: Fri Jul 17, 2009 9:19 am
by Mateo
did you machine those pieces yourself?
Posted: Fri Jul 17, 2009 10:46 pm
by twizi
o so it a tee two nipples and a rode with orings attched so that the force are ballanced is it hard to trigger at 700 psi
Posted: Fri Jul 17, 2009 11:08 pm
by inonickname
twizi wrote: is it hard to trigger at 700 psi
Seen as it's balanced, I'll guess not. Seriously man, it's been said at least twice in this thread that the only force to counter is the spring...
Very good work far cry
Posted: Fri Jul 17, 2009 11:19 pm
by twizi
sorry did not read the thread it like 300 here give me a break
