DOE-HDBK-1016/1-93ENGINEERING FLUIDS DIAGRAMS AND PRINTSEngineering Fluid Diagrams and PrintsEO 1.5IDENTIFY the symbols used on engineering P&IDs for thefollowing basic types of instrumentation:a.Differential pressure cellb.Temperature elementc.Venturid.Orificee.Rotometerf.Conductivity orsalinity cellg.Radiation detectorEO 1.6IDENTIFY the symbols used on engineering P&IDs to denotethe location, either local or board mounted, of instruments,indicators, and controllers.EO 1.7IDENTIFY the symbols used on engineering P&IDs for thefollowing types of instrument signal modifiers:a.Proportional b.Proportional-integral c.Proportional-integral-differentiald.Square root extractorsEO 1.8IDENTIFY the symbols used on engineering P&IDs for thefollowing types of system components:a.Centrifugal pumpsb.Positive displacement pumpsc.Heat exchangersd.Compressorse.Fansf.Tanksg.Filters/strainersSymbologyTo read and interpret piping and instrument drawings (P&IDs), the reader must learn the meaningof the symbols. This chapter discusses the common symbols that are used to depict fluid systemcomponents. When the symbology is mastered, the reader will be able to interpret most P&IDs.The reader should note that this chapter is only representative of fluid system symbology, ratherthan being all-inclusive. The symbols presented herein are those most commonly used inengineering P&IDs. The reader may expand his or her knowledge by obtaining and studying theappropriate drafting standards used at his or her facility.PR-02Rev. 0Page 2
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