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    By Andy Davis

    AutoCAD P&ID provides support for inline valves that have different inlet and outlet sizes in the Relief Valves class of the P&ID class hierarchy.  However, the Relief Valves class is defined as a subclass of Inline Instrument.  Because of this classification, Relief Valves are not included in the standard Valves List report and are instead listed as instruments in the Instrument List report.

                                         

    It is possible to re-implement relief valves as a subclass of hand valves to facilitate their inclusion in the Valve List report.

    To read more, download the whitepaper below.....