[Jdmcfast]

Can someone recommend a certain brand or type of needle valve to use with paintball CO2 setup. The one I picked up at the lhs sucks

 

[Bettatail]

no matter which one you use, they will be all sucks.

the inlet pressure is 800psi, no matter the precision, the flow rate is a huge number.
and most of the needle valves are not rated to 800psi pressure differential.

and the needle valve you use on your paintball setup is for water, 300 psi rate the most, not safe. the longer you use it, you will probably have chance to see some wired shape(deformation) on the body of that needle valve, due to high pressure.

 

[clang]

Brass Ideal needle valves have a 3000 psi limit. We use the 52-1-12 model.
http://www.idealvalve.com/52-series-forged-brass-needle-valves.html

Some Swagelok metering valves operate at up to 2000 psi and more. There are many choices here.
http://swagelok.com/products/valves/metering-valves.aspx

I just don't know what will fit on your regulator.
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