How are pipes and tubes primarily differentiated in terms of measurement?

The distinction between pipes and tubes in terms of measurement is crucial in industries such as medical gas systems, where precise specifications are essential for safety and functionality. Pipes are primarily measured by their inside diameter (ID), which is significant for determining the flow of gases or liquids within the system. This measurement helps in ensuring that the internal space of the pipe can accommodate the required volume and pressure of the substance being transported.

On the other hand, tubes are measured by their wall thickness, which is important for structural integrity and application-specific considerations. The wall thickness of a tube affects its strength, flexibility, and ability to withstand external forces, making it critical for applications that require durability or specific resistance to pressure and temperature.

This differentiation in measurement methods helps engineers and technicians select appropriate materials and sizes for their specific uses, ensuring safety and efficiency in the design and implementation of medical gas systems and other applications.