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Tom Wood gets line of the month, Re:Avoiding Dumping CO2

In his response to:
   "The real way that needle valves work is by running "sonic", which refers 
the fact that the gas in the most tightly constricted part of the valve
reaches the speed of sound." and
   "If your output from the needle valve is a couple of psi, this means an
input gauge pressure of about 20psi to be safe.   Less and your valve will
not be running sonic (possibly) and it may not be providing the protection
you are hoping for.":
> Tom Wood writes:  
"Well this is pure nonsense. Protection from what? Sonic 
> boomlets?"

David S. Brown            

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