What are the vertical pipes connecting the main line(s) with the branch lines called?

The vertical pipes that connect the main line(s) with the branch lines are called risers. Risers serve an essential function in medical gas distribution systems by allowing for the transition of gases from horizontal main lines to vertical branch lines, facilitating the delivery of medical gases to various locations within a facility.

Understanding the role of risers is crucial in the design and implementation of medical gas systems, as they need to be installed and maintained properly to ensure safe and efficient gas flow. They must be sized correctly to handle the expected flow rates and pressures, and their installation must comply with relevant codes and standards to ensure reliability and patient safety.

In a medical gas system context, headers refer to horizontal pipes that distribute gas to multiple branch lines, while trunk lines typically signify the main supply pipeline. Drop lines, on the other hand, are specific lines that go down vertically from the main supply to a particular point of use, but they do not connect the main and branch lines in the same manner that risers do. Thus, understanding the distinctions between these components is essential in the broader framework of medical gas systems.