The pressure used to position a pneumatic actuator. It is the pressure that is actually applied to the actuator diaphragm or piston.
It can be the instrument pressure if a valve positioner is not used or is by passed.
The pressure used to position a pneumatic actuator. It is the pressure that is actually applied to the actuator diaphragm or piston.
It can be the instrument pressure if a valve positioner is not used or is by passed.