Fisher® Electro-Pneumatic and Pneumatic 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.
Electro-Pneumatic Positioners
Electromechanical positioners are conventional pneumatic positioners that have an additional integrated electro-pneumatic transducer. The transducer receives the DC analogue input signal from the control system and converts it to a proportional pneumatic signal which is then sent to the conventional positioner Almost every Fisher® pneumatic positioner has the option of adding an integrated electro-pneumatic transducer. This option allowing customers to upgrade their existing control technology while continuing to use their current reliable Fisher® positioner technology they are comfortable and familiar with.
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Fisher® 3582i |
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Fisher® 3620J |
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Fisher® 3620JP |
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Fisher® 3582i electro-pneumatic, single-acting positioner is used with diaphragm-actuated, sliding-stem control valve assemblies. |
Fisher® 3620J electro-pneumatic, single-acting positioner is used with rotary actuators to accurately position control valves used in throttling applications. |
Fisher® 3620JP electro-pneumatic, double-acting positioner is used with rotary actuators to accurately position control valves used in throttling applications. |
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Fisher® 3661 |
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Fisher® 3720 |
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Fisher® 3661 electro-pneumatic, single-acting positioner is used with various actuators on sliding-stem valves for throttling applications. |
Fisher® 3720 electro-pneumatic positioner is designed for use with either diaphragm or piston rotary actuators. |
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Pneumatic Positioners
Conventional pneumatic positioners receive a pneumatic control signal and translate that into the appropriate pneumatic output signal to the control valve actuator. This positioner technology has been the stalwart for the process control industry for decades, and is still extensively used. We make a variety of Fisher® pneumatic positioners to meet almost any need a customer may have.
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Fisher® 3570 |
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Fisher® 3582 |
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Fisher® 3610J |
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Fisher® 3570 pneumatic valve positioners are used with control valve assemblies to provide an accurate valve stem position that is proportional to the input signal received from a control device. |
Fisher® 3582 pneumatic, single-acting positioner is used with diaphragm-actuated, sliding-stem control valve assemblies. |
Fisher® 3610J pneumatic, single-acting positioner is used with rotary actuators to accurately position control valves used in throttling applications. |
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Fisher® 3610JP |
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Fisher® 3660 |
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Fisher® 3710 |
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Fisher® 3610JP pneumatic, double-acting positioner is used with rotary actuators to accurately position control valves used in throttling applications. |
Fisher® 3660 pneumatic, single-acting positioner is used with various actuators on sliding-stem valves for throttling applications. |
Fisher® 3710 pneumatic positioner is designed for use with either diaphragm or piston rotary actuators. |
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