We have been griping about the inability to apply an expansion valve in the CPU, VC, and chipset cooling applications. But in considering Bowman 1964's 3-evap single system design, I decided that if we attribute a 150w load for each evaporator (450btuh approx.), times 3 evaps = 450w (1,350 btuh) or .1125 tons.....

Guess what.... that's right in the ballpark for a Sporlan EF-1/8 expansion valve.