What is the meaning of actuator 120 cm2 is it the actuator size

Field Instrumentation
1

Explain why it is labeled as 120 cm2 in the below image

image
image1449×636 148 KB

2

F=PA

FORCE= PRESSURE. AREA

The pressure range is known, so the main parameter here is the actuator size to determine the acting force. 120cm² actuator size means the size of the actuator diaphragm.