What type of valves shall be readily operable from a standing position in the corridor on the same floor they serve?

Valves that need to be readily operable from a standing position in the corridor on the same floor they serve are typically zone valves. Zone valves are designed to control the flow of medical gases to specific areas or zones within a healthcare facility. This accessibility requirement ensures that personnel can easily operate the valve in an emergency or maintenance situation without needing to enter a specific room or space.

Zone valves play a critical role in managing the flow of gases such as oxygen, nitrous oxide, and medical air. Their strategic placement allows for quick adjustments to the gas supply, making them essential for the safety and efficiency of medical gas systems. Proper access to these valves helps ensure that any required shut-off or adjustment can be made swiftly, promoting both patient safety and adherence to medical gas code requirements.

Other types of valves, while important in their respective functions, do not necessarily have the same accessibility requirements. For example, in-line valves are typically used to control the flow along a piping line rather than specific zones, relief valves are associated with pressure regulation, and service valves generally pertain to maintenance tasks rather than immediate access for operational changes.