The control valve sign identifies which information?

• A. The valve type.
• B. The building portion served by the valve.
• C. The valve material.
• D. The age of the valve.

Answer: (B)

The sign on a control valve shows which portion of the building that valve is protecting. In a low-rise residential sprinkler system, valves are used to isolate specific zones or areas, so the label tells you exactly which part of the building would lose water if that valve were closed. This helps responders and maintenance staff know which area would be affected and how to operate the system safely.

The other details—valve type, valve material, or age—aren’t what the sign conveys. Those facts are found on tags or documentation, while the sign’s purpose is to identify the zone or portion of the building served by that valve.