What is the name given to compressed air moving between pneumatic units?

The term that refers to compressed air moving between pneumatic units is best identified as loading pressure. Loading pressure specifically describes the pressure of compressed air that is being delivered to the various components of a pneumatic system to perform work, such as moving actuators or powering tools.

Understanding loading pressure is vital in pneumatic systems because it directly impacts the efficiency and effectiveness of the machinery. Properly balancing loading pressure ensures that the pneumatic devices operate optimally, preventing system malfunctions or inefficiencies.

The other terms, while related to pressure in pneumatic systems, do not accurately define compressed air moving between units. Supply pressure refers to the pressure coming from the source of compressed air before it reaches the various units. Return pressure typically denotes the pressure that is present as air exits the pneumatic units back to the supply source. Operating pressure refers to the pressure at which a system or component is designed to function but does not specifically address the movement of air between the units. Thus, loading pressure is the most precise term for this context.