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blowgun replacement

Unread postPosted: Thu Jan 22, 2009 10:29 pm
Author: mike1010
ok so as the title indicates i am looking for a blowgun replacement, the size and functionality just isn't there and they are longer than they need to be. does anyone know of some small valve that could handle at least 250 psi for a bbmg that doesn't cost an arm and a leg?

Unread postPosted: Thu Jan 22, 2009 11:17 pm
Author: jon_89
I guess you could use a .25 inch ballvalve? Why not the blowgun? Cut it to make it shorter and mod it. I use mine at high pressure all the time.

Re: blowgun replacement

Unread postPosted: Thu Jan 22, 2009 11:36 pm
Author: DR
mike1010 wrote:ok so as the title indicates i am looking for a blowgun replacement, the size and functionality just isn't there and they are longer than they need to be. does anyone know of some small valve that could handle at least 250 psi for a bbmg that doesn't cost an arm and a leg?


OK... as the requirement indicates, you will need a valve that is electrically actuated, as there is no way you can (manually) push a small button, with 250psi pressure behind it... and have it "functional".

If the gas you plan to use is CO2, then look into cyrogenic valves. Not only can they handle the pressure requirement, but also the cold temperature aa a "bbmg" uses a shitload of gas.

Sometimes, what you want and what you can get, are two entirely different things.

Unread postPosted: Thu Jan 22, 2009 11:45 pm
Author: MrCrowley
jon_89 wrote:I guess you could use a .25 inch ballvalve? Why not the blowgun? Cut it to make it shorter and mod it. I use mine at high pressure all the time.

Careful when modding it, I modded the exhaust and fill ports on my blowgun by drilling them bigger and at 200PSI the valve is forced open by the pressure. I probably screwed up the piston surface area ratio. Though putting in a stronger spring did help.

Unread postPosted: Fri Jan 23, 2009 12:42 am
Author: inonickname
Have a look at neospud's bbmg, he used a small push button valve I think.

Unread postPosted: Fri Jan 23, 2009 3:46 pm
Author: Hotwired
Hum.

6790T42 on Mcmaster.

But nothing will undercut a blowgun in the cheap "high" pressure valve category.