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Masoneilan 8012 8013 FactSheet 06120 pages
GE Oil & Gas
Masoneilan* 8012/8013 Series
Electro-pneumatic Valve Positioners
fact sheet
Excellent Dynamic Response and Positioning Accuracy
Accurate, Simple, Rugged
The primary function of a valve positioner is to ensure that the
control valve plug position is always proportional to the value of
the controller output signal, regardless of packing box friction,
diaphragm actuator hysteresis, or out-of-balance forces on the
valve plug. The controller output signal may be pneumatic or
electric, depending on the type of positioner.
GE’s Masoneilan 8012 and 8013 Series cam positioner is a forcebalance electro-pneumatic device which, by directly comparing
valve position with a controlled DC output signal, provides
excellent dynamic response and positioning accuracy. One multilobe cam provides field-changeable linear- or percentage-control
characteristics without additional parts.
