In plumbing airlines, why is a large diameter pipe recommended?

A large diameter pipe in plumbing airlines is recommended primarily to ensure that condensation can effectively drain back to the compressor. In compressed air systems, moisture can accumulate in the airline, and in order to manage this condensation, a larger diameter pipe allows for better airflow and reduces the likelihood of moisture becoming trapped. This is crucial because trapped moisture can lead to issues such as rust, corrosion, and decreased efficiency of air tools and equipment.

While other factors may play a role in the design and efficiency of plumbing airlines, the primary focus of using a larger diameter pipe is to facilitate the proper drainage of condensation back to the compressor, thus maintaining the overall health of the air system and preventing potential damage or efficiency loss caused by moisture buildup.