What enters a metering device in a refrigeration system?

In a refrigeration system, the metering device regulates the flow of refrigerant from the high-pressure side to the low-pressure side. What enters the metering device is typically the high-pressure liquid refrigerant, which then expands and reduces in pressure as it passes through the device. This process prepares the refrigerant for evaporation in the evaporator coil, where it absorbs heat from the surroundings.