Trane VAL73457Thermal Expansion Valve 3/8X1/2" 3 Ton R-410A 30" Capillary

The Trane VAL7347 is the thermostatic expansion valve with the operation in HVAC systems which uses the R-410A refrigerant. A TXV, thermal expansion valve, is among the most essentialcomponents as far as refrigeration as the refrigerant in that system is concerned. Therefore, it controls the pressure on the evaporator coil without human interferences, making pressure levels constant. The TXV is nevertheless driven by a bulb that contains refrigerant vapor, which is sensitive to temperature changes. There is an inverse relationship to the pressure inside the bulb as the temperature of the evaporator coil becoming lower.