Operational shutoff valves are permitted to be installed to isolate or shut off piping for servicing of what?

The correct answer pertains to the installation of operational shutoff valves that are specifically designed to isolate or shut off piping for servicing in-line systems. In-line systems refer to the sections of piping that are uninterrupted and part of a continuous run, thus allowing for targeted isolation without impacting the entire gas supply.

This capability is crucial for facilitating maintenance and ensuring safety during servicing, as technicians can access specific segments without needing to disrupt upstream or downstream operations. Understanding the role of in-line operational shutoff valves is essential for maintaining the integrity and safety of medical gas systems.

Other types of piping, such as main lines, risers, and zone systems, typically involve more comprehensive configurations that may not allow for the same level of localized service isolation with operational shutoff valves. This makes the in-line application the most suitable context for these types of valves, ensuring that operational efficiency and safety protocols are upheld during maintenance activities.