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
Details +

Chemical
Corrosive Service
Erosive Service
Fugitive Emissions Control
General Service
Mining
Oil & Gas
Power Plant
Pulp & Paper
Refinery
Severe Service
Water / Wastewater 