BASIC OPERATION AND FUNCTION OF CONTROL …

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BASICBASICOPERATIONOPERATIONANDANDFUNCTI ONFUNCTIONOFOFCONTROLCONTROLVALVESVALVES 02-99- 2 -That valvedrives me crazy!??What ishappening insidethat valve??Gaskets Won't Seal!Unusually HighTrim Maintenance!!Packing Always Leaks!NOISY!!VIBRATING!!Positioner AlwaysNeeds Calibration!Too much seat leakage!LOUSY CONTROL !RATTLING!Table of ContentsTOPIC - SUBJECTSECTIONTerminology--------------- ---------------------------------------- ------- 1Control Valve BASIC Designs --------------------------------------- 2Characterization and Trim Design -------------------------------- 3Control Valve Technical Considerations ----------------------- 4Force-Balance Principle ---------------------------------------- ----- 5Actuator BASIC Designs ---------------------------------------- ------ 6Control Valve Unit Action ---------------------------------------- --- 7Actuator Benchset Range ---------------------------------------- --- 8Valve Positioner basics ---------------------------------------- ------ 9Control Loop Action

Valve Positioner Basics----- 9 Control Loop Action ... control valve: A valve which controls the flow rate or flow direction in a fluid system.

  Basics, Control