True or False: A backing ring may not be advantageous because the ring becomes part of the system and could cause flow restrictions.

The reasoning behind identifying this statement as true rests on the function and implications of using a backing ring in piping systems. A backing ring is typically a component used to support connections and joints between pipes, particularly in welding applications. While it serves an important role in stabilizing the joint, it can indeed become a part of the flow path within the system once the installation is complete.

One of the potential drawbacks of using a backing ring is that it may create flow restrictions. This happens because the ring occupies physical space within the pipe, which could constrict the diameter and, consequently, the flow rate of the fluid passing through. These flow restrictions can lead to inefficiencies, possibly causing increased pressure drop across the system or reducing overall system performance.

In specific applications where smooth flow is critical, such as in high-pressure systems or where fluid dynamics are carefully controlled, the presence of a backing ring can be viewed as a disadvantage. Thus, caution is advised in scenarios where the installation of a backing ring may impact the efficiency or capacity of the piping system.