Model 8012 / 8013 Electro-Pneumatic Valve Positioners

Reliable Electro-Pneumatic Valve Positioner

The Model 8012 and 8013 electro-pneumatic valve positioners provide accurate and reliable conversion of controller dc output signal directly to actuator pneumatic input within an integrated package. These positioners include a multi-lobe cam design providing inherent flexibility to set various flow characteristics, and split-ranging capabilities for sequential operation of multiple control valves using a single controller.

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Selection Criteria

The Model 8012 and 8013 electro-pneumatic valve positioners are qualified for use in hazardous area environments, including applications requiring ATEX (8013), FM or CSA (8012) certifications with explosion-proof and intrinsically safe ratings. These positioners can also be applied with controller dc output signals of 1-5mA or 10-50mA.

Benefits

Models 8012 and 8013 utilize a multi-lobe cam design to provide inherent linear and equal percent flow characteristics as well as providing split ranging capabilities. These positioners have an internal nozzle construction providing a highly vibration and corrosion resistant device. The 8012 and 8013 can also be configured for direct or reverse operation utilizing the same mounting system and orientation. These positioners use a high capacity internal relay design to provide fast stroking speeds.

Key Features

The 8012 and 8013 provide fast operating speeds resulting in excellent dynamic response to meet various process control requirements. They deliver maximum flexibility as they can be configured for use with either reciprocating or rotary motion control valves. Users can further optimize their control loop performance by applying the most suitable flow characterization for any specific process using the standard or customized cam designs.

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