DOE-HDBK-1016/1-93Engineering Fluid Diagrams and PrintsENGINEERING FLUIDS DIAGRAMS AND PRINTSValveSymbolsValves are used to control the direction, flow rate, and pressure of fluids. Figure 1 shows thesymbols that depict the major valve types.It shoud be noted that globe and gate valves will often be depicted by the same valve symbol.In such cases, information concerning the valve type may be conveyed by the componentidentification number or by the notes and legend section of the drawing; however, in manyinstances even that may not hold true.Figure 1 Valve SymbolsRev. 0PR-02Page 3
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