While mounting actuator proper bracket is to be manufactured so that alignment of valve stem and actuator stem is achieved, similarly a suitable coupling with proper accuracy is to be filtted in between valves stem and actuators driving shaft. Any geometrical inaccuracy would result in jamming of valve and maay cause damage to valve stem.
Control elements such as solenoid valve, valve positioner can be adopted on the top of actuator. Enquiry arrangement, which is fitted on actuator, needs geometrical accuracy, Control elements are to be connected properly with actuator connectors.
Valve position (90 degree ) for opening and closing can be set by external screws provided on actuator sides.
In case of air or power failure, suitable spanner can operate actuator-driving shaft.