I have been asked by a few people if what you are trying is doable. I have finally talked them in to isometrics with valves equip. Locking hte view and tagging the view to replace these. The engineers I worked with think they are just as good if not better.
Joining the party late I know. To date the answer to replicating the attached 2D schematic format in Revit is - not really. It is possible sometimes for things like Electrical layouts but it means a mixture of workflows and will then be messy.
I have attached an example of how we used isometrics for drainage in MEP2011. Unfortunately the anno is text as no tagging was allowed prior to 2012 but it shows the principle.
The trick is getting away from axonometric/isometric definitions based on angles (there is bound to be one person who will quote that these type of views are based on a specific angle!!!) and pick the angle which displays the most amount of information the clearest.
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