What is a Legend? – Piping and Instrumentation Diagram
A legend is a column that denotes symbols of various types of instruments in a piping and instrumentation diagram (P&ID).
Importance of Piping and Instrumentation Diagram
What is Piping and Instrumentation Diagram (P&ID) ?
Piping and Instrumentation Diagram (P&ID) is a drawing elaborating the details of piping and instrumentation of a processing plant, developed
