In a pneumatic schematic, what type of line indicates an exhaust line?

In a pneumatic schematic, an exhaust line is represented by a dotted line. This type of line signifies the path through which air is expelled from the system, typically indicating where air must escape to ensure the proper function and safety of pneumatic components. The use of a dotted line helps to differentiate exhaust paths from other lines in the schematic, making it clear to technicians and engineers where the exhaust air flows and ensuring that schematics are easily readable.

Using a solid line typically indicates a continuous flow of air or power through the system, while dashed lines can relate to components that are not part of the primary flow, such as alternate paths or auxiliary connections. Looped lines could represent a return or recycle line within the pneumatic system, but they are not specifically used to denote exhaust lines. Knowing these conventions is essential for understanding and interpreting pneumatic schematics effectively.