While pneumatic systems use pressured air or gases, hydraulic systems use pressurized liquids to provide fluid power. You can weigh aspects like cost-effectiveness, the materials that need to be moved, and the accessibility of supplies and room when choosing between the two.
Directional control valves, a substitute for pneumatic valves, are frequently used to maintain constant pressure and differ the direction of airflow. Many uses call for their usage, such as:
Oil and gas sector: Regulating petroleum and gas flow via pipes, processing procedures, and storage infrastructure
Safety systems: supplying a rapid cutoff in the event of anomalous conditions