Positioners are most commonly used to move a control valve to a specified position so that a process meets specific parameters (flow, pressure, temperature). Fisher® positioners have the reputation of providing the most accurate, robust, and reliable performance in the industry.
Conventional pneumatic positioners receive a pneumatic control signal and translate that into the appropriate pneumatic output signal to the control valve actuator.
Fisher 3582 valve positioner
Fisher 3582-series, pneumatical sliding stem positioner, are used for both direct and reversed actions.
(e) Option - By-pass function
(g) Option - Tire valves connection
(h) Option - High vibration & high cycle construction
(j) Option - Split range on inputsignal