Equipment number & appearance on the isometric drawing.Coordinates of equipment against equipment layout.Design pressure, design temperature, test pressure, testing medium, radiography requirement, Heat treatment requirement, painting requirement, and internal coating requirement.Reference number of PEFS (P&ID), GA drawings, line numbers, the direction of flow, and insulation tracing.Plant North: The direction should be selected so as to facilitate easy checking of isometrics with GA.The following information must be included in piping isometric drawings: Dimension is given relative to the centreline of the piping.Isometrics are not drawn to scale but should be proportional to easy understanding.It shows all information necessary for fabrication and erection. An isometric drawing covers a complete line as per the line list and P&ID.Latest P&ID/PEFS (Process) (Issued signed copy) General Information about Piping Isometric drawings.and is conversant with a drafting tool can draft isometric. A draft person ( piping designer/engineer) who knows to read the piping GA.
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