Valve Positioner
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What is the Difference between E/P Positioner and I/P positioner in a control valve?Give their applications.?
It is the same thing.
E/P : electro pneumatic positioner, i.e., voltage in, air pressure out
I/P: current pneumatic positioner, currrent in, air pressure out
positioners are transducers which convert one control variable into an other, usually electrical to pneumatical, in order to control pneumatically operated control valves, the most common type.
there are other types of transducers and positioners, they can be pneumatic-to-pneumatic, electric-to-electric, pressure-to-current, and so on.
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