Transcription of Part 1 Control Valve Actuator Options - …
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George Ritz, Contributing EditorThis article is the first in a two-part se-ries examining the state of the art in con-trol Valve actuators and their current ap-plication guidelines in the process indus-tries. Part I deals with the mechanical as-pects of Valve Actuator Options . Part II,in next months issue of Control , willcover the benefits of using the latest gen-eration of smart, digitally controlled the past several years, Valve actuators have re-ceived relatively little attention while process Control specialists concentrated on Control -lers, sensors, and other components of thecontrol loop. This is borne out by theControl Valve Actuator OptionsToday s Actuators Offer Imposed Performance With Lower Life-Cycle Challenge Is Choosing the Right One for the 1unglamorous nickname pig iron as-signed to the Actuator / Control Valve the onset of the smart- Valve genera-tion, it suddenly appears that the controlvalve Actuator may get more respect alongwith its new electronics degree.
FAIL SAFE WEIGHT PER PHYSICAL INITIAL MAINTENANCE AVAILABLE RELIABILITY ACTION UNIT FORCE ENVELOPE COST COST ACCESSORIES Inherent due to high in Require high Low Low Positioners, limit Excellent, simple,
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