What device is typically used to initiate a pneumatic cylinder's action?

The device typically used to initiate a pneumatic cylinder's action is the control valve. This device regulates the flow of compressed air into and out of the cylinder, effectively controlling its movement. When the control valve is operated, it directs the pressurized air into the cylinder, causing it to extend or retract as needed. The precision of the control valve allows for accurate handling of the cylinder's speed and force, making it a critical component in pneumatic systems.

In pneumatic applications, while other components may play supportive roles, none directly triggers the cylinder's action like the control valve does. The pressure gauge is used to measure the pressure of the air within the system, but it does not initiate movement. A pneumatic actuator is a powered mechanism that transforms pressurized air into mechanical motion, but it is not used to start the cylinder's movement itself. An air receiver tank stores compressed air but does not control or initiate the operation of a cylinder. Thus, the control valve is the key device responsible for starting the action of a pneumatic cylinder.