what is P& ID and PFD in chemical industry
hat is P& ID and PFD in chemical industry
The two above a very good but I would say that a good PFD and
P&ID set is sufficient for an experienced engineer or contractor to build
a plant. They would have to produce a great deal of additional information
in the for of specifications, drawings, etc but that is time consuming but
not difficult for someone with experience.
The terms P&ID & PFD stand for ''Piping & Instrumentation
Diagram'' & ''Process Flow Diagram.''
A PFD is a high level diagram that shows the general process flow. An
example could be made of ur home water system. Showing the water coming
into the house & going to a water heater, or an ice maker or washing
machine. But no detail would be included such as valves or size of the line. A P&ID is a more detailed diagram that shows valves & line sizes, & major pieces of equipment such as a water heater. This is still a high level diagram because it does not show enough details that would be used in actual assembly of a system.
P&ID are Piping & Instrumentation diagrams & PFDs are Process
flow diagrams..
P&IDs show the plant piping & other details..while PFDs just show the
Proces flow details.
Normally P&IDs are very complex..as they include info abt the piping.(o.d, thk,etc), the instruments used on the plant(eg. compressors, heaters, boilers,etc), It not only shows process piping but also the side products' piping.. PFDs are normally used to understand the process conceptually..But P&IDs are used for the actual construction of plants...
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