...(which would be more properly called: "heat exchangers") actually install upstream of the valve (i.e., between gas supply and valve). So they don't contribute the pressure-squandering dead volume and headspace you'd get if you added unnecessary volume downstream of the valve (i.e., between valve and breech) as in your sketch.
Steve
This message has been edited by pneuguy from IP address 74.242.255.122 on Aug 20, 2011 9:55 AM This message has been edited by pneuguy from IP address 74.242.255.122 on Aug 20, 2011 9:51 AM
