there is not much I can use, it's a domestic installation for a multi storey apartment block. nothing revit has is of any use.
I created very rough valves, all of which have the physical dimensions of the valves required, but are constructed of extruded circles and rectangles. but as this is only a scheme design, it's useful to ensure clearances, when/if I have time i'll go back and recreate the valves.
I'm hampered somewhat by a lack of information from manufacturers, most have drawings which aren't true representations of the valves, dimensions which are wildly innacurate or mostly incomplete.