What is the operating principle and working pressure range of this actuator?

The operating principle of a Scotch Yoke Pneumatic Actuator is based on the conversion of compressed air pressure into linear motion, which is then transformed into rotational motion through the use of the Scotch Yoke mechanism. As the compressed air enters the actuator's cylinder, it moves the piston back and forth inside the cylinder. The connection between the piston and the yoke creates a sinusoidal motion in the yoke, which, in turn, rotates the output shaft to control the valve or mechanism being actuated.

The working pressure range of a Scotch Yoke Pneumatic Actuator can vary depending on the specific model and manufacturer. However, in general, these actuators can operate within a broad range of air pressures typically found in industrial pneumatic systems. The working pressure for Scotch Yoke Pneumatic Actuators is often specified in terms of psi (pounds per square inch) or bar (atmospheric pressure, where 1 bar is approximately equal to 14.5 psi).

Common working pressure ranges for Scotch Yoke Pneumatic Actuators can start from as low as 20 psi (1.4 bar) and go up to 150 psi (10 bar) or higher. Some heavy-duty models might have higher working pressure ratings to accommodate more demanding applications.

It's important to note that the working pressure range of a specific Scotch Yoke Pneumatic Actuator should be within the system's allowable operating pressure. Using the actuator within the specified pressure range ensures optimal performance and safety.

As with any pneumatic component, proper system design, including appropriate pressure regulation and control, is essential to ensure the actuator functions as intended and remains within its safe operating limits. Therefore, it is crucial to refer to the manufacturer's documentation and specifications for a particular Scotch Yoke Pneumatic Actuator model to understand its specific operating principle and working pressure range.