In pneumatic systems, what role does a regulator play?

In pneumatic systems, a regulator plays a crucial role in maintaining a consistent output pressure. This is essential for the reliable operation of pneumatic tools and systems, as it ensures that the air pressure remains stable, regardless of fluctuations in input pressure or demand from the system.

A regulator works by reducing the incoming pressure from the air supply to the desired outlet pressure, providing a steady flow that can be adjusted based on the requirements of the equipment being powered. By maintaining this consistent pressure, it allows for optimal performance and prevents damage that can occur from excessive pressure or inefficient operation due to low pressure.

The other roles mentioned—such as increasing air pressure, converting energy types, or serving solely as a safety release valve—are not functions of a regulator. While safety features may be present in similar devices, their main function is centered on pressure regulation, making option B the correct choice.