Valve sizing for R-410A: How smaller will the valves be?
It is generally understood that components for R-410A systems can be smaller than those for an R-22 system of the same tonnage. That’s because the higher pressure and density of refrigerant permits the same weight flow through smaller flow areas.
But components in different parts of the system are affected differently. This article will explore the component sizing factor for different locations in the system, and for different assumptions about design pressure drop.