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P&ID symbology for stantion mounted e-stop?

P&ID symbology for stantion mounted e-stop?

P&ID symbology for stantion mounted e-stop?

(OP)
I would like to place a mushroom emergency stop button on a stantion, necessarily away from the process equipment.  To depict on a P&ID, can I have a double headed arrow on/off the page connected with dashed line to a YS dcs bubble connected to a HS local bubble?  This would be shown as independent of the equipment motor.  The arrow has the dcs cabinet number inside.  Other ways?

RE: P&ID symbology for stantion mounted e-stop?

If it is associated with equipment, consider locating the HS bubble on the P&ID next to the equipment.  Otherwise a "bubble in space" works.  Use a note to describe the location such as 50-foot from pump, exit gate, etc.  Place a reference to the note at the HS bubble.

Some systems like area fire and gas or ESD buttons may justify a separate P&ID with "bubbles in space", tables for the associated equipment, tag numbers, etc.

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