Which device is commonly used in refrigerant recovery to prevent atmospheric release?

A recovery machine is specifically designed for refrigerant recovery and plays a crucial role in preventing the release of refrigerants into the atmosphere during service procedures. These machines are equipped to extract refrigerants from the system safely and efficiently, ensuring that they are contained and recycled or properly disposed of, in compliance with environmental regulations.

By using a recovery machine, technicians can minimize the risk of refrigerant leakage, which not only protects the environment but also helps to maintain the refrigerant supply for future use. This practice aligns with regulations set by the EPA, which aim to limit the atmospheric release of substances that can contribute to ozone depletion and global warming.

In contrast, while a filter drier helps to remove moisture and impurities from the refrigerant, it does not serve to recover or contain refrigerant. A vacuum pump is utilized to remove air and moisture from a refrigeration system in preparation for charging with refrigerant but does not recover refrigerant itself. An orifice plate is a component used to regulate refrigerant flow but does not play a role in recovery. This distinction highlights why the recovery machine is the correct choice for this function.