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CO2 w/o regulator
I got tired of mixing yeast cocktails and broke down and bought a 20#
CO2 tank and a Uniweld regulator. In searching for needlevalves I came
across one made by Parker. The thing is rated to 5000 psi
and has a large/heavy brass body which works well for kinetic
transfer. So, being the curious sort that I am, I tried it on the tank with
and without a Uniweld regulator. The resultant flow is steadier from
the needlevalve WITHOUT the regulator. Tank pressure is much more
stable than any of the $55 regulators at a low (25 psi) pressure. Since
the flow I use is minimal the heavy brass body keeps the valve from
iceing up (doesn't even get cold). The Parker needlevalve has a very
fine adjustment to it and can deliver any flow from "zero" to "empty
your tank in an hour". Best of all it was only $17. Anyone interested
in a slightly used Uniweld regulator? :)