Masoneilan models 4700E/4800E (electropneumatic) and 4700P/4800P (pneumatic) are field-proven positioners from GE Oil & Gas that use a precision feedback cam to provide accurate positioning, fast response, and customized control characteristics for control valves. These positioners can be used with either rotary or reciprocating actuators. On rotary actuators, the cam is mounted directly on the shaft. When mounted on reciprocating actuators, a simple, rugged turnbuckle and lever assembly couples stem motion to the cam.
4700/4800 Pneumatic and ElectroPneumatic Positioner
Masoneilan models 4700E/4800E (electropneumatic) and 4700P/4800P (pneumatic) are field-proven positioners from GE Oil & Gas that use a precision feedback cam to provide accurate positioning, fast response, and customized control characteristics for control valves. These positioners can be used with either rotary or reciprocating actuators. On rotary actuators, the cam is mounted directly on the... Read More
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