Which plumbing term indicates a component that serves more than one fixture drain?

The term that indicates a component serving more than one fixture drain is "Fixture Branch." A fixture branch refers to a part of the plumbing system that extends from a common waste or drainage line to connect multiple fixtures, allowing them to drain into a shared system. This is crucial in plumbing systems as it optimizes space and resources, ensuring efficient waste removal from several fixtures without the need for separate drains for each.

In plumbing design, understanding the role of fixture branches is essential for maintaining proper drainage and avoiding potential clogging issues. They help facilitate an organized and functional drainage system within buildings, linking various fixtures like sinks, toilets, and bathtubs to one primary drainage route. This allows for the efficient movement of wastewater, ensuring that it reaches the main drain line effectively.

Other terms like individual vent, stack vent, and P-trap serve specific roles in a plumbing system but do not indicate a component serving multiple fixture drains in the way that a fixture branch does. The individual vent is typically associated with venting a single fixture, stack vent relates to venting multiple fixtures through a vertical pipe, and a P-trap is specifically designed to prevent sewer gases from entering the building while holding a small amount of water to create a seal.