What component is commonly found in a recycling machine but not in a recovery machine?

A recycling machine is designed to reclaim refrigerants from the system by separating them from contaminants and impurities, while a recovery machine is primarily focused on extracting refrigerant without any major processing. The primary distinction between these two machines lies in their built-in components that serve different roles in managing refrigerants.

The oil separator is specifically integrated into recycling machines because when refrigerants are processed, they can often carry over oil from the compressor, which needs to be removed to ensure the purity of the reclaimed refrigerant. This process is vital in maintaining the efficiency and longevity of the refrigerant throughout its lifecycle. On the other hand, recovery machines do not typically require an oil separator, as their goal is only to recover the refrigerant without the need for purification or separation of any oil present.

Other components such as compressors, expansion valves, and condensers are commonly utilized in both types of machines. They are essential for the basic functioning of refrigerant systems, helping to manage the pressures and temperatures involved in refrigerant recovery and recycling.