Pneumatic control valve
Pneumatic control valve may describe a modulating control-valve assembly driven by a pneumatic actuator, but it identifies neither body nor controlled variable and overlaps the pneumatic actuated-valve family. Without an independent index intent, it may describe the same assembly twice. Body type, modulation duty, and its boundary from an actuated valve must be resolved for selection.
Application and duty
Only after body identity and an intent distinct from pneumatic actuated valves are established