Daikin-McQuay 668043001 Thermostatic Expansion Valve 1/4" X 3/8" ODF

The Daikin-McQuay 668043001 Thermostatic Expansion Valve is the most vital part in the HVAC systems which serves to control the flow of refrigerant in the air conditioning and refrigeration sectors only. This expansion valve has a connection size of 1/4” x 3/8” ODF and regulates the pressure drop of the refrigerant from a liquid to a gaseous phase for cooling. It permits the control of the amount of refrigerant that flows through the evaporator coil to set up the required operating conditions of the evaporator and increases the efficiency of the cooling system. Advantages of expansion valves include energy saving, steady temperature control, and increased system reliability.