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Fisher® Positioners 

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.
Fisher 3582iElectro-Pneumatic Positioners
Electromechanical positioners are conventional pneumatic positioners that have an additional integrated electro-pneumatic transducer.
Fisher 3582Pneumatic Positioners
Conventional pneumatic positioners receive a pneumatic control signal and translate that into the appropriate pneumatic output signal to the control valve actuator.
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