Commonly used P&ID symbols (Piping and Instrumentation
Diagram symbols) for manual valves.
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Plumbing
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p&ids r docs used to desribe symbols,abbreivations prefixes
and specialised equipments while pfds r sketches that use symbols
to represent instruments/vessels used in process engrn and also
shows the direction of flow.
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AdministrationBrowserInstrument
IndexSpecificationCalculationProcess DataDocument BinderWiringLoop
DrawingsHook-upsCalibrationMaintenanceConstructionDimensional Data
for Piping (DDP)