What is the layout of a standard fire sprinkler system riser?

The layout of a standard fire sprinkler system riser consists of a vertical pipe that serves as the main distribution point for water supply to the sprinkler system. This riser connects the water supply to the distribution pipes and includes critical components such as valves and gauges. Valves regulate water flow, and gauges provide pressure readings essential for the proper operation of the sprinkler system. This vertical configuration allows the system to efficiently direct water upwards to the various floors of a building, ensuring that each area has adequate sprinkler coverage.

In contrast, the other options do not accurately describe the primary function and design of a fire sprinkler riser. A horizontal pipe connecting to mains typically refers to the main supply lines but does not encompass the riser’s vertical functionality. A system of underground pipes is related to the overall plumbing and water supply source, but it does not pertain specifically to the riser itself. A separate area for equipment storage is not relevant to the riser layout, as it focuses more on the infrastructure for managing the fire suppression system rather than the riser’s role in distributing water.