Directional-control valves are common in pneumatic systems. They control compressed-air flow to cylinders, rotary actuators, grippers, and other mechanisms in packaging, handling, assembly, and ...

Installing a recycle valve in parallel with the antisurge valve of a turbine-driven multistage (low pressure/high pressure) centrifugal compressor, in combination with control system modifications, ...

Compressed air is vitally important to all power plants. Although in some cases it is used simply for convenience, such as when operating certain pneumatic tools, in other cases, compressed air is ...