What does the feed mains pipe supply in a sprinkler system?

In a sprinkler system, the feed mains pipe is primarily responsible for delivering water from the primary source to the branch lines. This is essential for ensuring that all components of the sprinkler system receive the necessary water supply needed to function effectively.

While the term "cross lines" may refer to connections between different sections or grids of pipes, it is not the primary focus of what feed mains do. The feed mains facilitate the flow of water to the branch lines, which then distribute the water to individual sprinkler heads for proper coverage in a designated area.

Understanding the role of the feed mains pipe helps in planning and designing sprinkler systems effectively, ensuring that all parts receive adequate water supply for fire protection.