Which component does the capillary tube connect in a refrigeration system?

The capillary tube is a crucial component in a refrigeration system that serves to connect the liquid line to the evaporator. Its primary function is to regulate the flow of refrigerant into the evaporator, where it expands and absorbs heat from the surroundings, thereby cooling the area being refrigerated.

When refrigerant leaves the condenser, it is in a high-pressure, liquid state. As it passes through the capillary tube, the refrigerant experiences a pressure drop, which allows it to expand and turn into a low-pressure vapor as it enters the evaporator. This process is essential for maintaining the efficiency of the refrigeration cycle, as it enables the refrigerant to absorb heat effectively from the space to be cooled.

Understanding this function highlights the significance of the capillary tube in linking the condenser and the evaporator, facilitating the overall cooling process within the refrigeration system.