Valve Positioners
Valve positioners compare the control signal with the actual stem position and adjust the air to the actuator until the two match, which removes the effect of friction, packing wear and varying process pressure. Smart digital positioners add diagnostics on travel, cycles and dead band over HART, Profibus or Foundation Fieldbus, turning a control valve into a source of predictive maintenance data. Find global manufacturers of valve positioners in our Equipment Guide.
