expansion valve

An expansion valve is a key component in air conditioning and refrigeration systems that controls the flow of refrigerant into the evaporator. It reduces the pressure of the high-pressure liquid refrigerant, allowing it to expand into a cold, low-pressure vapor. This change enables the refrigerant to absorb heat efficiently from the indoor air or object being cooled. The valve ensures the right amount of refrigerant enters the evaporator, helping the system operate smoothly and maintain consistent temperature. In essence, it acts as a regulator that manages refrigerant flow for optimal cooling performance.