which valve

Show us your pneumatic spud gun! Discuss pneumatic (compressed gas) powered potato guns and related accessories. Valve types, actuation, pipe, materials, fittings, compressors, safety, gas choices, and more.
ajb12345
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Thu Aug 28, 2008 10:08 am

for my second cannon(gotta get around to posting my first) I can't figure out which type of valve to use. It's going to have a two inch barrel and a 2.5 in barrel, so it has to be powerful enough for both of them. And I have done my reserch and people have used sprinkler and piston valves. And if I do have to use a piston I want to keep it kinds small like 2" with 1.5" porting. Just thought I'd see what you guys siad
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MaxuS the 2nd
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Thu Aug 28, 2008 10:34 am

Piston valves are usually a whole lot cheaper than sprinkler valves and relatively easy to make. That should sway you somewhat.
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mark.f
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Thu Aug 28, 2008 12:48 pm

A lot of first-time piston valves are 2" housing with 1+1/2" porting. That was the first size I made.

I say, if you do make a piston valve, make your first one with more function than form in mind. You can make a perfectly flush valve the same exact size as a 2" tee, but you can also make a larger valve that takes a much shorter amount of time to make and doesn't sacrifice a significant amount of power.
ajb12345
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Thu Aug 28, 2008 7:20 pm

so make piston
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