What is the main function of a Fixture Branch in plumbing?

The primary function of a fixture branch in plumbing is to serve more than one fixture drain. This component is designed to transport wastewater from multiple fixtures—such as sinks, toilets, or tubs—converging them into a common drain line. This makes efficient use of plumbing resources by allowing several fixtures to share a single drainage path to the main sewage system.

Using a fixture branch is essential because it not only helps manage wastewater effectively but also optimizes the plumbing layout across a building, ensuring that plumbing systems are compact and can handle multiple installations without creating excessive complexity in the design. The capacity to serve multiple fixtures in a single branch reduces the need for separate drain lines for each fixture, which can be more cost-effective and easier to maintain.

In addition to its primary role, a fixture branch must be installed with proper slope and alignment to facilitate efficient drainage and prevent any backup or blockages. Proper installation also ensures that it can handle the cumulative flow from the connected fixtures effectively.