Thermostatic expansion valves (TXVs) are critical components that control refrigerant flow in refrigeration and cooling system evaporator coils. HVACR contractors who replace TXV valves during ...
A thermostatic expansion valve (TXV) is designed to maintain a specific amount of superheat at the outlet of the evaporator. If the superheat value is too high or too low, the TXV may be the cause.