Description
The Trane VAL19426 Thermal Expansion Valve is a refrigerant metering part used in cooling systems to regulate the amount of liquid refrigerant entering the evaporator coil. It adjusts flow based on load conditions and superheat feedback to maintain stable evaporation, prevent liquid return to the compressor, and support consistent system performance. Commonly used in R-410A applications, it is installed between the liquid line and evaporator assembly in split and packaged units. The valve helps balance pressure, improve heat transfer efficiency, and maintain reliable temperature control in residential and light commercial equipment.
