What is the role of a drain valve in a standpipe system?

The role of a drain valve in a standpipe system is primarily to allow for the drainage and maintenance of the system. This is essential for ensuring that the standpipe network is free from debris, sediment, or stagnant water, which can compromise its effectiveness during a firefighting operation. Proper drainage helps prevent corrosion and other issues that can arise from water sitting within the system for extended periods.

Routine maintenance, including draining, assures that the standpipe system will function efficiently when needed. This contributes to the overall reliability of the firefighting infrastructure, ensuring that when the situation arises, firefighters can depend on the standpipe to deliver water effectively.

While other options may describe different functions related to standpipe systems, they do not encompass the specific purpose that the drain valve serves in the context of system maintenance.